JP2018050531A - Crop drawing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a walk-operated crop drawing machine in which a drawing-out unit can be adjusted in height and then crops are drawn out till the middle and are reliably left in a field while standing upright.SOLUTION: A crop drawing machine is configured by including a drawing conveyor (2) where the crop foliage is held and drawn out, and a position alignment conveying device (3) for conveying the conveyance crops of the drawing conveyor (2) at a predetermined drawing height. The crop drawing machine is provided with holding force adjusting means (4) for adjusting the holding force of the drawing conveyor (2). In the holding force adjusting means (4), both of the drawing conveyor (2) and the position alignment conveying device (3) are configured such that the holding force in the range of the conveyance downstream side from the position for holding the foliage can be lowered, and thereby the holding force is lowered and the harvested crops can be left in the field without damaging the foliage.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a walking operation type crop extractor that extracts a root crop such as a Japanese radish to be harvested from the field to the middle, and travels so that it can be left standing.

The crop pulling machine described in the prior patent document 1 is to pull a crop foliage part from the field by a pulling and conveying device, cut a part of the foliage part with a foliage cutting blade during conveyance, and return the crop to the field. It is. The crops returned to the field are stored in the holes formed by being pulled out, and the operator grasps and collects the uncut leaves and leaves.
This eliminates the need for the effort to extract the crop rooted in the soil, which is the most necessary in the crop extraction process, and improves the efficiency of the crop harvesting operation.

JP, 2016-32460, A

However, depending on the crop, the foliage part is also an edible part, and if it is cut at the time of harvest, the value of the product is lowered, and the foliage part sandwiched by the pulling and conveying device is discharged to the field. There is a problem that decreases.
In addition, crops that need to be dried before shipment and crops that are dried and processed need to hook the foliage part into a hook or rope, so that the foliage part may not be cut.
In order not to cut the foliage part, it is only necessary to remove the foliage cutting blade. However, it takes time to remove the foliage cutting blade, and there is a problem that the work efficiency is lowered.
Further, the pulling and conveying apparatus needs to hold the foliage part to pull out the crop, and to transport the cut foliage part to the conveyance end part and discharge it. Therefore, even when the foliage cutting blade is removed and cutting is not performed, the foliage part is continuously held for a long time, and a part of the foliage is broken or crushed, resulting in a problem that the commercial value is lowered.

  An object of the present invention is to provide a crop extractor that allows root crops such as Japanese radish to be pulled out halfway and leave the stems and leaves as they are when running on a field so that they can remain standing.

  The invention according to claim 1 is a drawing / conveying device (2) for holding and pulling a crop foliage, and a position-aligning conveying device (c) for conveying a conveying crop of the drawing / conveying device (2) at a predetermined drawing height. 3) is provided with a clamping force adjusting device (4) for adjusting the clamping force of the drawing / conveying device (2). The clamping force adjusting device (4) is provided with the drawing / conveying device (2). And the position aligning / conveying device (3) are configured to be able to adjust the holding force in the range on the lower side of the transfer from the position where the foliage part is held.

  According to a second aspect of the present invention, in the first aspect of the invention, the pulling and conveying device (2) includes a moving-side conveying member (2a) and a position that can be moved laterally by an operation of the clamping force adjusting device (4). The fixed fixed-side conveying member (2b) is configured to be opposed to each other, and (5c, 5d) is extended and contracted between the left and right pulling transmission cases (5a, 5b) that are transmitted to the opposite conveying members (2a, 2b). The connection is possible.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein a foliage cutting blade (6a) is provided so as to be able to advance and retreat from a position crossing the conveyance path of the alignment conveying device (3), and the drawing conveyance A discharge leaf guide member (7) for guiding the cut foliage portion to the outside of the machine body is provided on the moving side of the device (2).

  The invention according to claim 4 is the invention according to claim 3, wherein an expansion / contraction adjustment member (4a) is detachably provided at the moving side end of the pulling transmission case (5a, 5b), and the expansion / contraction adjustment member ( 4a) is provided on the fixed side (5b).

  The invention according to claim 5 is the invention according to claim 3 or 4, wherein the foliage cutting blade (6a) is constituted by a single-edged member, and the cutting blade moving mechanism (6b) is moved to the non-acting position (6c). It is characterized by being supported so as to be movable with the cutting action part facing outward.

  The invention according to claim 6 is the invention according to claim 5, wherein the alignment transport device (3) causes the foliage cutting when the foliage cutting blade (6a) is moved to the non-operation position (6c). A protective member for covering the cutting action portion of the blade (6a) is provided.

  The invention according to claim 7 is the invention according to claim 5 or 6, wherein the pull-out transmission case (5 a, 5 b) is provided with a telescopic sensor () between left and right and the foliage cutting blade (6 a) is rotated. An electric drive member (6d) is provided, and the forage cutting blade (6a) is retracted to the non-operating position (6c) by the extension of the pulling transmission case (5a, 5b).

  The invention according to claim 1 is provided with a clamping force adjusting device (4) for adjusting the clamping force of the drawing / conveying device (2), so that the foliage is released from the drawing / conveying device (2) during the conveyance. Since the crop can be transported only by the aligning and transporting device (3) and returned to the field at a predetermined position, the process of cutting the foliage of the crop and returning it to the field becomes unnecessary.

  In addition to the effect of the invention according to claim 1, the invention according to claim 2 extends and retracts the left and right pulling transmission cases (5a, 5b) to the left and right, so that only one side of the conveying member (2a, 2b) having an opposing configuration is provided. With a simple configuration that moves sideways, it is possible to configure the pulling / conveying device (2) that can change the clamping force, and it is possible to prevent excessive relaxation of the clamping force. The foliage is prevented from dropping off in the middle.

  In addition to the effect of the invention according to claim 1 or 2, the invention according to claim 3 is an operation for cutting a foliage part and a foliage by switching back and forth of a foliage cutting blade (6a) provided in the alignment transport device (3). The work adaptability can be improved, and the foliage cutting blade (6a) can be removed from the cutting action area when the foliage is not pinched on the lower conveyance side of the pulling and conveying device (2). By retracting, an operation that does not cut the foliage can be selected.

  In addition to the effect of the invention according to claim 3, the invention according to claim 4 can attach and detach a detachable expansion / contraction adjusting member (4a) to the moving side and adjust the expansion and contraction. This prevents the foliage portion discharged from the conveyance end portion of the drawing conveyance device (2) from being caught by the expansion / contraction adjustment member (4a).

  In addition to the effect of the invention according to claim 3 or 4, the invention according to claim 5 is characterized in that when the foliage cutting blade (6a) is moved to the non-operation position (6c) by the cutting blade moving mechanism (6b), the foliage cutting blade Since the cutting action part of (6a) does not face the nipping and conveying area of the pulling and conveying device (2) and the aligning and conveying device (3), the foliage part being conveyed becomes foliage cutting blade due to the inclination of the fuselage etc. Since it is prevented from being cut even if it touches (6a), the foliage is left in the crop.

  In the invention according to claim 6, in addition to the effect of the invention according to claim 5, when the foliage cutting blade (6a) is moved to the non-operation position (6c), the cutting action part is covered by the protective member, thereby maintaining the maintenance. When the operator inserts his / her hand from the outside of the pulling / conveying device (2) for work or the like, the hand can be prevented from touching the cutting action portion of the foliage cutting blade (6a), so safety is improved.

  In addition to the effect of the invention according to claim 5 or 6, the invention according to claim 7 weakens the clamping force on the conveyance start end side of the extraction conveyance device (2) by extending the extraction transmission case (5a, 5b) to the left and right. When the crop is harvested without cutting the foliage, the rotating member of the cutting blade moving mechanism is actuated to move the foliage cutting blade (6a) to the non-operating position (6c). Since the operation of changing the position of the blade (6a) becomes unnecessary, the work efficiency is improved.

Side view of crop puller Top view of crop puller Front cross-sectional view of transmission case during foliage transport (a) and passage (b) Enlarged plan view around the foliage cutting device

  Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings. In the description, they are referred to as front and rear and left and right in the forward direction of the crop puller.

  The crop pulling machine 1 according to the embodiment of the present invention includes a pulling / conveying apparatus 2 that pulls out a crop by sandwiching a foliage portion of the crop, as shown in FIGS. The apparatus 2 includes a driving wheel D, D and a gauge wheel G that support the position alignment transport device 3 for transporting the transport crop of the device 2 at a predetermined drawing height so as to be able to run on the field. And a control unit H.

  The drawing / conveying device 2 is configured so that the surrounding belt mechanisms 2a and 2b that are opposed to each other are inclined upward and rearward so that the foliage portion of the field crop to be harvested can be clamped, and the one side belt 2a is clamped on the discharge side The width can be adjusted to allow lateral movement.

  The alignment transport device 3 horizontally arranges the circumferential belts 3a, 3a facing left and right, and sandwiches the base side of the foliage part in the middle of pulling out below the pulling transport device 2, so that it is transported to a predetermined height position. The cutting blade 6a is provided so as to be capable of cutting the foliage part on the conveying line.

  Specifically, the pulling / conveying device 2 provides a gap between the left and right sides of the sponge belt on the drive side of the circumferential belts 2a and 2b facing the left and right sides, and when maintaining the foliage, the foliage comes out behind the machine body.

  The gap between the belts is configured so that the drive pulleys 2p, 2p can be slid outward, and the length of the claw is prevented so that the leaf leaf scraping claw (15 to 20 mm) of the packer device 2g that guides the leaf leaf from the end of conveyance does not act. The mounting side of the packer device 2g is configured to be movable so as to be slidable to a position higher than that.

  The pulling section (about 200 mm) at the tip of the pulling and conveying apparatus 2 ensures the pulling accuracy of root crops such as radish by bringing the left and right belts 2a and 2b into close contact with each other. Make sure that the gap between the left and right belts gradually increases from the point of entry.

(Transmission section)
The transmission case 5 of the drawing / conveying device 2 is extendable so that the left and right transmission portions 5a and 5b can be divided and the distance can be adjusted as shown in the front sectional views of the conveyance (a) and passage (b) of FIG. Configure. Specifically, the transmission case 5 is provided with a slide guide 5d on which the leaflet side case 5a is slidable laterally. The slide portion is provided with a soft bellows guide cover 5e so that the foliage and the like do not enter the drive portion.

  The slide on the leaflet side is rotated by attaching a handle to the shaft end of the leaflet side transmission case 5a and rotating it. After the operation, the handle is removed and stored in the main frame on the other side. To do.

(Control section)
The control portion H is provided with a work light, and a parasol mounting portion is provided on the stay of the work light, so that a sunshade and rain can be prevented. The parasol mounting portion is configured to be adjustable up and down along the stay and to be detachable with a single touch.

(Stem and leaf cutting device)
As shown in the enlarged plan view of FIG. 4, the foliage cutting device 6 pivotally supports one end of the cutting blade 6 a by a single blade member on the cutting blade moving mechanism 6 b and moves forward from a cutting position in an oblique transverse posture on the foliage conveyance path. The blade is turned so as to be able to turn backward and outward at a non-operating position 6c on the side, and a storage portion is provided so as to be held at the non-operating position 6c to cover the blade.

  The cutting blade 6a at the storage position can be prevented from being cut erroneously by being stored substantially in parallel with the transport direction of the position alignment transport device 3. Further, when the cutting blade 6a rolls to the non-operation position 6c, the blade facing the outside of the machine body is housed in the housing portion and guarded, and at this time, the housing portion 6c as a guard member is used as a single blade so that the blade is not exposed. It is formed larger than the member.

  The storage unit 6c is provided with an indicator in the vicinity of the clutch lever of the control unit H that is provided with a sensor to notify storage by detection of the cutting blade 6a. In addition, the cutting blade 6a can be put in and out of the cutting blade moving mechanism 6b so that the cutting position value and the storage position can be switched by the electric drive unit 6e via the transmission gear 6d. When the gap is widened by adjusting the interval of the pulling and conveying device 2 provided in the control unit H, interlocking control for storing the cutting blade 6a is provided.

(Key points in configuration)
Regarding the crop harvester with the above configuration, the main points in configuration are summarized as follows.
First, a clamping force adjusting device 4 that adjusts the clamping force of the pulling and conveying device 2 is provided, and this clamping force adjusting device 4 is conveyed from a position where both the drawing and conveying device 2 and the aligning and conveying device 3 clamp the foliage. By configuring the holding force in the lower range so as to be adjustable, the foliage is released from the pulling / conveying device 2 in the middle of conveyance, and the crop is conveyed only by the alignment conveying device 3 and returned to the field at a predetermined position. As a result, the process of cutting the foliage of the crop and returning it to the field becomes unnecessary.

  Secondly, the pulling and conveying device 2 is configured such that a moving-side conveying member 2a that can be moved laterally by an operation of the clamping force adjusting device 4 and a fixed-side conveying member 2b that is fixed to each other face each other, and conveying members on both sides By connecting the left and right pulling transmission cases 5a, 5b that transmit power to 2a, 2b so as to be extendable, the left and right pulling transmission cases 5a, 5b can be extended and contracted left and right, thereby conveying the conveying member 2a having an opposing configuration. With a simple configuration in which only one side of 2b is moved sideways, the pulling / conveying device 2 capable of changing the clamping force can be configured, and excessive relaxation of the clamping force can be prevented. At this time, the foliage is prevented from dropping off along the way.

  Thirdly, a leaf cutting blade 6a is provided so as to be able to advance and retreat from a position crossing the conveyance path of the alignment conveying device 3, and a leaf discharge guide member 7 that guides the cutting foliage part to the outside of the machine body on the moving side of the drawing conveying device 2. When the clamping force of the pulling and conveying device 2 is weakened by the operation of the clamping force adjusting device 4, the foliage cutting blade 6 a is retracted, and the foliage cutting blade 6 a provided in the alignment transport device 3 is switched by advancing and retreating. Since the operation for cutting the foliage part and the operation for maintaining the foliage part can be selected, work adaptability can be improved. When the foliage part is not sandwiched on the lower conveyance side of the pulling and conveying device 2, the foliage cutting blade 6a By retracting from the cutting action area, it is possible to select an operation that does not cut the foliage.

  Fourthly, the pull-out transmission cases 5a and 5b are provided with an expansion / contraction adjustment member 4a at the end of the moving side in a detachable manner, and an attachment / holding portion for the expansion / contraction adjustment member 4a is provided at the fixed side, thereby detachable expansion / contraction. The adjustment member 4a can be attached to the end of the moving side to adjust the expansion and contraction, and when not in use, the stem and leaf portion discharged from the conveyance terminal portion of the drawing / conveying device 2 can be expanded and contracted by attaching the adjustment member 4a to the fixed side holding holder. It is prevented from being caught by the adjusting member.

  Fifth, the foliage cutting blade 6a is constituted by a single blade member, and is supported by the cutting blade moving mechanism 6b so that the cutting action part is directed to the outside of the non-acting position 6c. When the foliage cutting blade 6a is moved to the non-operating position 6c by 6b, the cutting action portion of the foliage cutting blade 6a assumes a posture that does not face the nipping and conveying area of the pulling and conveying device 2 and the alignment and conveying device 3. Even if the foliage part being conveyed touches the foliage cutting blade 6a due to the inclination of the cut, it is prevented from being cut, so that the foliage part remains in the crop.

  Sixth, since the alignment transport device 3 is provided with a protective member that covers the blade side when the cutting blade 6a by the single blade member is moved to the non-operation position 6c, the foliage cutting blade 6a is disposed at the non-operation position. When moved to 6c, the cutting member is covered with the protective member, so that the operator touches the cutting member of the foliage cutting blade 6a when the operator inserts his / her hand from outside the pulling / conveying device 2 for maintenance work or the like. Safety can be improved.

  Seventh, the pulling transmission cases 5a and 5b are provided with an expansion / contraction sensor between the left and right, and an electric drive member for rotating the foliage cutting blade 6a is provided, and the foliage cutting blades 6a are inoperative by the extension of the pulling transmission cases 5a and 5b. When the pull-out transmission cases 5a and 5b extend left and right by the retraction control to the position 6c and the holding force on the transfer start end side of the pull-out transfer device 2 is weakened, the rotating member of the cutting blade moving mechanism is operated. By moving the foliage cutting blade 6a to the non-operating position 6c, the operation of changing the position of the foliage cutting blade 6a is not required when crops are harvested without cutting the foliage portion, so that the work efficiency is improved.

DESCRIPTION OF SYMBOLS 1 Crop extractor 2 Drawing conveyance apparatus 2a Movement side conveyance member 2b Fixed side conveyance member 3 Position alignment conveyance apparatus 4 Holding force adjustment apparatus 4a Expansion / contraction adjustment member 5a, 5b Extraction transmission case 5c, 5d Expansion / contraction part 6 Stem and leaf cutting apparatus 6a Cutting blade 6b Cutting blade moving mechanism 6c Non-operating position (storage part)
7 Foliage guide member (packer)

Claims (7)

Crop puller comprising a pulling and conveying device (2) for pinching and pulling a crop foliage, and a position aligning and conveying device (3) for conveying the transported crop of the pulling and conveying device (2) at a predetermined pulling height In
A holding force adjusting device (4) for adjusting the holding force of the pulling / conveying device (2) is provided, and the holding force adjusting device (4) includes the pulling / conveying device (2) and the alignment conveying device (3). A crop harvesting machine characterized in that it is configured to be able to adjust the holding force in the range on the lower side of conveyance from the position where the foliage part is held.   The pulling / conveying device (2) comprises a moving-side conveying member (2a) that can be moved laterally by operation of the clamping force adjusting device (4) and a fixed-side conveying member (2b) that is fixed in position. The crop according to claim 1, wherein the left and right pulling transmission cases (5a, 5b), which are opposed to the conveying members (2a, 2b) on both sides, are connected in an extendable manner (5c, 5d). Harvester.   A foliage cutting blade (6a) is provided so as to be able to advance and retreat from a position traversing the conveyance path of the alignment conveying device (3), and a foliage section cut on the moving side of the pulling and conveying device (2) is guided to the outside of the body. The crop harvesting machine according to claim 1 or 2, further comprising a leaf guide member (7).   The pulling transmission case (5a, 5b) is characterized in that an expansion / contraction adjustment member (4a) is detachably provided at an end portion on the moving side, and a mounting holding portion for the expansion / contraction adjustment member (4a) is provided on the fixed side. The crop harvester according to claim 3.   The foliage cutting blade (6a) is constituted by a single blade member, and is supported by the cutting blade moving mechanism (6b) so that the cutting action part is directed to the outside of the non-acting position (6c). The crop harvester according to claim 3 or 4.   The alignment transfer device (3) is provided with a protective member (6c) that covers the cutting action portion of the single blade member when the foliage cutting blade (6a) is moved to the non-operation position (6c). 6. A crop extractor according to claim 5, characterized in that The pulling transmission case (5a, 5b) is provided with an expansion / contraction sensor () between the left and right sides, and an electric drive member (6d) for rotating the foliage cutting blade (6) is provided, so that the drawing transmission case (5a, 5b) is provided. The crop pulling machine according to claim 5 or 6, wherein the forage cutting blade (6) is retracted to a non-acting position by extending the length.