JP2005095093A - Farm product-harvesting implement and method for harvesting farm product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a farm product-harvesting implement carrying out the harvesting operation of a ginger or the like while saving labor, reducing the decrease of quality after harvesting operation as possible, having a simple compact structure and providing good operability of a machine body. <P>SOLUTION: The farm product-harvesting implement has a traveling device 1 handled while walking, a pulling-up and conveying device 15 for pulling up and conveying product bodies P by nipping the stem and leaf parts PL of the product bodies P, and a cutting device 16 installed in the rear side lower part of the pulling-up and conveying device 15, and cutting the stem and leaf parts PL of the product bodies P. The product-lifting height H from the nipping-starting position A of the pulling-up and conveying device 15 to the nipping position B of the pulling-up and conveying device 15 at which the cutting device 16 cuts the stem and leaf parts PL is regulated so as to be smaller than the final maximum depth d of the product E to be harvested of the product bodies P grown in the ground before the pulling-up and conveying device 15 acts thereon. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a harvesting work machine and a harvesting work method for agricultural products such as ginger, garlic, onion, and carrot.

  When harvesting crops such as ginger, garlic, onions, carrots, etc., the upper part of the ground will be pulled up with the stems and leaves that are on the ground to pick up the final harvest. This drawing work is heavy labor. In particular, when pulling out the ginger, a lifting force of about 30 kg is required. Conventionally, there is a crop harvesting work machine for pulling out crops such as ginger as described in Patent Document 1 below as a machine for performing this drawing work. The crop harvesting machine includes a traveling device having a plurality of wheels on the left and right sides and a handle for walking control at the rear, and a pulling / conveying device provided at a rearward upward slope for pulling and conveying the foliage portion of the crop body. It is the composition which provided. In this crop harvesting machine, the stalks and leaves of the crop body to be vegetated in the field are held at the front of the machine by the pulling and conveying device, and then transported backwards, so that the bulbs etc. in the ground of the crop body are grounded. Pull it up above the surface and pull it out completely. Then, the crop body sandwiched by the pulling and conveying device is discharged from the rear part of the machine body to the field. Therefore, in the crop harvesting machine of this document, the pulling and conveying device has a configuration that is long in the front-and-rear direction so that the bulbs and the like are lifted above the ground surface and completely pulled out, and the crop body is discharged to the rear of the machine body. The aircraft is not compact. In addition, since bulbs etc. are completely pulled out on the ground surface and exposed to the ground, the final harvested products such as bulbs are dried, etc., after drying by the harvesting machine until the crop is collected. May decrease.

Moreover, there exists a crop harvesting machine which draws out crops, such as a ginger, as described in the following patent document 2. This crop harvesting machine has a total of 6 wheels, 3 wheels on each side, and a running device with a handle for walking control at the rear, and a rear rising slope that pulls and conveys the foliage of the crop body A pulling / conveying device provided on the upper side of the clamping conveying end of the drawing / conveying device; Cutting device provided with a plurality of upper and lower cutters for cutting the foliage part of the crop body, and foliage discharging means for discharging the foliage part cut by the cutting device to one side of the scavenging device with a scraping wheel and a guide body Is provided. Therefore, the crop harvesting machine of the document has the above-described scraping device, cutting device, and foliage discharging means arranged at the front of the body and above the clamping start end of the pulling and conveying device. The aircraft becomes heavy and the aircraft cannot be controlled easily.
JP-A-2-131519 JP 2000-333522 A

  The problem to be solved by the present invention is to save labor in harvesting operations such as ginger and avoid quality degradation after harvesting as much as possible, and with a simple and compact configuration. It is to obtain a crop harvesting machine with good maneuverability.

In order to solve the above-mentioned problems, the present invention takes the following technical means.
In other words, the invention according to claim 1 is provided with the walking control type traveling device 1 and the pulling and conveying device 15 that lifts and conveys the foliage portion PL of the crop body P, and the rear lower side of the pulling and conveying device 15 is provided. Is provided with a cutting device 16 for cutting the foliage part PL of the crop body P, and the holding part B of the pulling and conveying device 15 at the time when the cutting device 16 cuts the foliage part PL from the holding start end point A of the pulling and conveying apparatus 15. Crop body lifting height H is set to be smaller than the maximum depth d of the final crop E of the crop body P that has grown in the ground before the lifting and conveying device 15 operates. It is a harvesting machine.

The invention according to claim 2 is the crop harvesting machine according to claim 1, wherein the crop body lifting height H is set to 2 to 6 cm.
According to a third aspect of the present invention, the walking maneuvering type traveling device 1 includes traveling rotators 2, 2; 3, 3 on both right and left sides, and an engine 4, a mission case 5, and a steering handle for walking maneuvering on the rear side. 6, the pulling and conveying device 15 is provided with a pair of left and right pulling and conveying belts 14, 14 that lifts and conveys the foliage part PL of the crop body P in a rearwardly inclined posture. The described crop harvesting machine.

  According to a fourth aspect of the present invention, the pulling and conveying belts 14 and 14 of the pulling and conveying device 15 are disposed between the left and right traveling rotary bodies 2, 2; 4. The crop harvesting machine according to claim 3, wherein the crop harvesting machine is arranged in a rearwardly inclined posture from the front side to the vicinity of the front-rear intermediate part.

  According to the fifth aspect of the present invention, the engine 4 is disposed at the rear of the body, the transmission case 5 is disposed at the front side of the engine 4, and the left and right frames 19 extend in a rearwardly rising posture toward the front of the body at the front of the transmission case 5. , 19 are fixed, the pulling and conveying device 15 is disposed above the frames 19, 19, and transmission members for transmitting the power for driving the traveling rotators 3, 3 are provided on the left and right sides of the transmission case 5. 4. The crop harvesting machine according to claim 3, wherein the traveling rotators 3 and 3 are mounted via a transmission case that extends downward from the bottom of the mission case 5.

  In the invention according to claim 6, the bottom portion of the final crop E of the crop body P that has grown in the ground is sandwiched and lifted by the pulling and conveying device 15 that is driven and rotated, and the bottom portion of the crop body P that has grown in the ground is the ground surface. The crop harvesting work method is characterized by cutting the foliage PL with the cutting device 16 before ascending further upward.

  Therefore, this crop harvesting machine moves the machine forward by the walking maneuvering type traveling device 1, and lifts and conveys the foliage part PL of the crop body P by the pulling and conveying device 15. The set pulling height is 2-6 cm. At this time, the final harvest E of the crop body P in the soil is also raised, and the roots stretched in the soil are torn off. And the foliage part PL is cut | disconnected by the cutting device 16 before the bottom part of the last harvest E raises upwards from the ground surface. For this reason, the final harvested product E remains in a state where the upper side is covered with soil or the like. The root-side portion P1 of the crop body P after being cut by the cutting device 16 passes through the left and right frames 19 and 19 and the space portion S formed below the mission case 5 to the rear of the machine body. After performing such an operation, the root side portion P1 of the crop body P left in the field is pulled out from the field by the operator and the final harvest E is collected, but has been pulled up once by the above operation. Therefore, it can be picked up easily and quickly with a light force, and it is not pulled out completely, but is left with the soil etc. covered on the upper side of the final harvest E, resulting in a decrease in quality due to drying, etc. Hateful. On the other hand, the leaf tip side portion P2 cut by the cutting device 16 and cut off from the root side portion P1 is discharged from the rear end portion of the pulling and conveying device 15 and discharged to the side of the machine body by the operator.

  According to the present invention, it is possible to save labor in harvesting operations such as ginger and avoid quality degradation after harvesting as much as possible. In addition, the pulling and conveying apparatus can be shortened back and forth, and a crop harvesting work machine having a simple and compact structure and good machine maneuverability can be obtained.

 As one of the best modes for carrying out the invention, a ginger crop body pulling machine is illustrated and described in detail below.

As an embodiment of the present invention, a crop body lifting machine for lifting a ginger, which is a crop, from a field will be described in detail below.
As shown in the figure, this crop body lifting machine is provided with a traveling device 1 and a working unit W that performs the lifting operation of the crop body P. The traveling device 1 moves the body in the traveling direction D in front of the body. The work part W performs the work of pulling up the crop body P during the travel. Thereby, this crop body pulling machine mechanically and continuously pulls out the crop bodies P arranged in a line along the machine body traveling direction D.

  The traveling device 1 includes a traveling rotator, that is, front wheels 2 and 2 that freely rotate and rear wheels 3 and 3 that are driven and rotated on both the left and right sides, and an engine 4 and power of the engine 4 on the rear side. This is a walking maneuvering type four-wheel traveling device equipped with a transmission case 5 equipped with a transmission mechanism for shifting power to the rear wheels 3 and 3 and the working part W, and a steering handle 6 for walking maneuvering. The aircraft is configured to run on its own. The left and right front wheels 2 and 2 and the rear wheels 3 and 3 travel in troughs on both sides of the ridge across the ridge U formed in the field during work. The rear wheels 3 and 3 are driven to rotate when power is transmitted from the engine 4 disposed at the rear of the machine body. Specifically, the motive power of the engine 4 is transmitted to a speed change transmission mechanism in the transmission case 5 disposed on the front side of the engine 4 and connected to the engine 4, and is mounted on both left and right sides of the transmission case 5 through the speed change transmission mechanism. Is transmitted to the transmission mechanism in the wheel transmission cases 7, 7, and is transmitted to the rear axles 8, 8 projecting outward in the left-right direction below the wheel transmission cases 7, 7 and attached to the axles 8, 8. The rear wheels 3 and 3 are driven and rotated.

  In addition, a walk-type control handle 6 is provided at the rear of the fuselage so that the left and right grips 9 and 9 are located above the rear end of the fuselage as a control unit of the fuselage. The left and right handle frames 10, 10 extending forward from the grip portions 9, 9 of the steering handle 6 are bent downward and fixed to the left and right sides of the mission case 5. Further, side clutch levers 11 and 11 that are operated by a driver's grip operation are provided on the left and right in the vicinity of the steering handle 6, thereby individually blocking transmission to the left and right rear wheels 3 and 3. The clutch can be operated and the aircraft can be turned easily. Further, the main clutch operating lever 12 for operating the main clutch that cuts off the transmission to the rear wheels 3 and 3 and the transmission to the working unit W and the traveling transmission device provided in the traveling transmission unit in the transmission case 5 are moved forward at low speed. A shift lever 13 that is switched to a transmission state, a high-speed forward transmission state, a reverse transmission state, and a forward / reverse neutral state is also disposed in the vicinity of the steering handle 6.

Next, the working unit W will be described.
In the working part W, a pair of left and right pulling and conveying belts 14 and 14 that lift and convey the foliage part PL of the crop body P are provided in a posture that is gently raised and inclined, A cutting device 16 for cutting the foliage part PL is provided. In addition, the pulling and conveying device 15 is disposed between the left and right traveling rotary bodies 2, 2; 3, 3 in a plan view of the airframe, and is tilted backward from the front side of the airframe to the vicinity of the airframe front and rear in the side view of the airframe. It is arranged with. The cutting device 16 is disposed below the rear portion of the pulling and conveying device 15. Further, a foliage pedestal 17 that receives the leaf tip side portion P2 cut by the cutting device 16 and cut from the root side portion P1 and discharged from the rear end portion of the pulling and conveying device 15 is provided. The left and right frames 19, 19 extending rearward from the front of the mission case 5 to the front of the aircraft are arranged, and the cutting device 16 cuts the left and right frames 19, 19 below the mission case 5. It is configured to have a space S that allows the root side portion P1 that has fallen to the ground to pass through the rear of the aircraft.

  A more specific configuration will be described. The left and right working unit transmission cases 18 and 18 and the rear end portions of the two left and right frames 19 and 19 extending forward and inclined downward are fixed to the front portion of the mission case 5. The pulling and conveying device 15 includes a plurality of rollers 22 and 22 that are supported from the inside of the pair of left and right driving pulleys 20 and 20, the pair of left and right driven pulleys 21 and 21, and the left and right pulling and conveying belts 14 and 14. .. Are provided around the left and right pulleys and rollers, respectively, and the lifting and conveying belts 14 and 14 serving as the conveying members of the lifting and conveying device 15 are wound around the outer peripheral surfaces of the left and right pulling and conveying belts 14 and 14, respectively. The left and right central portions are in contact with each other. Then, the power in the transmission case 5 is transmitted to the drive-side rotary shafts 23 and 23 of the drive pulleys 20 and 20 through the transmission means in the transmission frames 18 and 18 so that the left and right pulling conveyor belts 14 and 14 are moved to the left and right. It is set as the structure driven so that it may move to a machine body back side in the crop body clamping location which mutually contacts on the center part side. The drive pulleys 20, 20 are disposed between the left and right frames 19, 19 and protrude upward from the second working part transmission cases 24, 24 fixed to the lower part of the first working part transmission cases 18, 18. The driven pulleys 21 and 21 are rotatably supported by projecting upward from mounting members fixed to the front end portions of the frames 19 and 19. The plurality of rollers 22, 22... Are attached to the driven side rotary shafts 25, 25 so as to rotate integrally therewith, and the support members 26, which are mounted across the drive side rotary shafts 23, 23 and the driven side rotary shafts 25, 25, A plurality of support shafts attached to 26 are rotatably attached. Since the support members 26 and 26 are disposed above the pulling and conveying belts 14 and 14, the supporting members 26 and 26 are less likely to come into contact with the foliage PL of the crop body P that is nipped and conveyed by the pulling and conveying belts 14 and 14. For this reason, when the crop body P is a ginger, it is less likely to break the ginger in the soil that grows in the horizontal direction when the pulling and conveying device 15 sandwiches and conveys the foliage part PL. . That is, when the ginger in the ground grows to the left and right and a plurality of foliage parts PL grows side by side widely, the lifting and conveying device 15 is an intermediate part of the plurality of foliage parts PL that stands on the left and right. In this case, the supporting members for attaching the plurality of rollers 22, 22... Are arranged below the pulling and conveying belts 14, 14, and the plurality of rollers are arranged. When the stems and leaves PL on the left and right ends hit the end of the support member to which 22, 22... Are attached, the left and right ends of the ginger that has spread to the left and right are pulled inward and left and right. It may be bent greatly. However, in this example, since the supporting members 26 and 26 to which the plurality of rollers 22 are attached on the upper side of the pulling and conveying belts 14 and 14, such a problem can be avoided.

  The gripping start end portion A of the pulling and conveying device 15 is a place where the left and right pulling and transporting belts 14 and 14 start contacting the belt outer peripheral surfaces with each other at the front side of the left and right center side. When the foliage portion PL of the body P enters, the left and right pulling conveyance belts 14 and 14 convey the slant portion PL of the crop body P diagonally upward on the rear side. The moving speed of the pulling conveyor belts 14, 14 in the rear horizontal direction of the airframe is set so as to be substantially the same as the airframe forward speed during operation (the speed when the travel transmission device VC is in the low speed forward transmission state). Therefore, even if the machine is traveling forward, the crop body P sandwiched and transported by the pulling and transporting device 15 does not fall forward and backward with respect to the ridge U and is subjected to a pulling action upward while maintaining a substantially vertical posture. The clamping end point of the pulling and conveying device 15 is located at the rear end of the pulling and conveying device 15, where the left and right pulling and conveying belts 14 and 14 are the rear portions on the left and right central sides, and the belt outer peripheral surfaces begin to separate from each other. The foliage part PL of the crop body P which 14 and 14 pinched and conveyed is discharged | emitted from this location.

  The left and right sides of the pulling conveyor belts 14 and 14 are configured to be movable in a direction away from the other side. Specifically, the pulling conveyance belt 14 on one side of the left and right sides is provided so as to be able to turn the front side of the support member 26 outward in the left-right direction around the rotation shaft 23 of the drive pulley 20. At the time of work, fixing means for fixing the pulling conveyance belts 14 and 14 at positions where they are in contact with each other is provided, and the fixing means is released so that it can be turned outward in the left-right direction. As a result, when an excessive amount of foliage portion PL enters between the pulling and conveying belts 14 and 14 and the engine 4 is stopped due to an overload, the jamming is caused between the pulling and conveying belts 14 and 14. The foliage PL can be easily removed. Incidentally, reference numeral 15a in the figure denotes a cover that covers the upper side of the pulling and conveying device 15.

  The left and right front wheels 2 and 2 are provided so as to be vertically adjustable. When the left and right front wheels 2 and 2 are adjusted downward, the forward lowering inclination of the pulling and conveying device 15 is increased, the crop body lifting height H is increased, and when the left and right front wheels 2 and 2 are adjusted upward, the lifting is increased. The forward downward inclination of the conveying device 15 is reduced, and the crop body lifting height H is reduced. Therefore, the crop body lifting height H of the lifting and conveying device 15 can be set and adjusted by the vertical adjustment mechanism of the left and right front wheels 2 and 2. Specifically, the left and right front wheels 2 and 2 are vertically moved to front wheel support arm mounting portions 28 and 28 at both left and right ends of the front wheel support shafts 27 and 27 attached to the left and right sides of the front end portion of the frames 19 and 19. Extending front wheel support arms 29 and 29 are mounted, front wheel axles 30 and 30 are provided at lower ends thereof, and left and right front wheels 2 and 2 are rotatably attached thereto. The vertical adjustment mechanism of the left and right front wheels 2 and 2 is configured by making it possible to adjust the mounting height of the front wheel support arms 29 and 29 with respect to the front wheel support arm mounting portions 28 and 28. In the example shown in the figure, the mounting hole and the mounting pin are used, but other configurations may be used.

  The cutting device 16 has a configuration in which a pair of left and right disc-shaped cutters are provided below the rear portion of the pulling and conveying device 15 so as to partially overlap each other at the left and right central portions. The left and right disk-shaped cutters of the cutting device 16 transmit the power from within the mission case 5 via the first working part transmission case 18 and the transmission means in the second working part transmission cases 24, 24. , 31 is driven to rotate. The foliage PL of the crop body P sandwiched and transported by the left and right lifting and transporting belts 14 and 14 is arranged to block the sandwiched transport path before being transported to the sandwiching and transporting end point C. It is cut by receiving a cutting action with a disk-shaped cutter. Since the setting is made so that the foliage part PL of the crop body P is conveyed to the place where the front outer circumferences of the left and right disc-shaped cutters intersect, cutting is started from here. Then, before the lifting and conveying device 15 acts, the crop body lifting height H from the clamping starting end portion A of the lifting and conveying device 15 to the clamping point B of the lifting and conveying device 15 at the time when the cutting device 16 cuts the foliage part PL. Is set to be smaller than the maximum depth d of the final harvest E of the crop body P that has grown in the ground. Specifically, the crop body lifting height H is set to 2 to 6 cm.

  Therefore, this crop harvesting machine moves the machine forward by the walking maneuvering type traveling device 1, and lifts and conveys the foliage part PL of the crop body P by the pulling and conveying device 15. At this time, the final harvest E of the crop body P in the soil is also raised, and the roots stretched in the soil are torn off. And the foliage part PL is cut | disconnected by the cutting device 16 before the bottom part of the last harvest E raises upwards from the ground surface. For this reason, the final harvested product E remains in a state where the upper side is covered with soil or the like. The root-side portion P1 of the crop body P after being cut by the cutting device 16 passes through the left and right frames 19 and 19 and the space portion S formed below the mission case 5 to the rear of the machine body. After performing such work, the root side portion P1 of the crop body P left in the field is pulled out of the field by the operator and the final harvest E is collected, but has been pulled up once by the work. Therefore, it can be picked up easily and quickly with a light force, and it is not pulled out completely, but is left with the soil etc. covered on the upper side of the final harvest E, resulting in a decrease in quality due to drying, etc. Hateful. On the other hand, the leaf tip side portion P2 cut by the cutting device 16 and cut off from the root side portion P1 is discharged from the rear end portion of the pulling and conveying device 15 and discharged to the side of the machine body by the operator.

  A herbaceous body is disposed in front of each of the left and right front wheels 2 and 2 (not shown), and the front and rear wheels 2 and 2 are separated by spreading the stems and leaves of the crop body P spread in the left and right and located in front of the front wheels 2 and 2. The crop body P is not caught or trampled.

  In this crop harvesting machine, the leaf tip side portion P2 cut by the cutting device 16 and cut from the root side portion P1 is pulled up and discharged from the terminal portion C of the transporting device 15 to the rear of the machine body. And the foliage stand 17 which receives the foliage part of the discharged leaf tip side part P2 is provided. In this example, specifically, the foliage pedestal 17 is formed of a plate body 32 having plate surfaces that extend from the lower part of the clamping conveyance terminal part C of the pulling conveyance apparatus 15 toward the left and right outer sides of the machine body. Yes. The foliage pedestal 17 receives the foliage portion of the leaf tip side portion P2 discharged from the clamping conveyance terminal portion C of the pulling conveyance device 15 from below, and the foliage portion is laterally moved by the operator. And then released to the field (to the valleys on both sides). Therefore, the root side portion P1 cut by the cutting device 16 and cut off from the leaf tip side portion P2 is left at the place where it originally grew on the cocoon U, while the leaf tip side portion P2 is pulled up and conveyed. 15 is conveyed to the nipping and conveying end point C and received by the foliage pedestal 17, and then released to the side portion of the ridge U by the operator and dropped and does not cover the root side portion P 1. . Therefore, when collecting the root-side portion P1 after the pulling operation, the root-side portion P1 is not hidden by the cut leaf-side portion P2, and the collection operation of the crop can be performed accurately without omission of collection. A cover portion 33 that covers the first working portion transmission case 18, the transmission case 5, and the upper side of the engine 4 is formed on the rear side of the foliage pedestal 17.

  The crop harvesting machine has an engine 4 disposed at the rear of the machine body, a mission case 5 disposed at the front side of the engine 4, and left and right frames extending in a rear-upward position toward the front of the machine body at the front part of the mission case 5. 19 and 19 are fixed, the pulling and conveying device 15 is disposed on the upper side of the frames 19 and 19, and a transmission member for transmitting power for driving the traveling rotary bodies 3 and 3 is provided on both left and right sides of the transmission case 5. The left and right rear wheels 3, 3 are mounted via transmission cases 7, 7 extending below the bottom of the transmission case 5. Further, the foliage pedestal 17 is disposed above the left and right frames 19, 19. Thereby, the space which allows the base side part P1 which is cut | disconnected by the cutting device 16 and left in the kite U below the left and right frames 19 and 19 and the mission case 5 of the vehicle traveling across the kite U can pass to the rear of the model. The part S can be sufficiently secured at the bottom of the body. Therefore, although the airframe is configured compactly, the root side portion P1 that has landed on the ridge U is allowed to pass through the rear of the airframe without being largely defeated or dragged, and the cut leaf end side portion It is also possible to prevent P2 from falling on the root side portion P1.

  The crop harvesting machine of this example is provided with a foliage collecting device 34 for collecting the foliage portion PL of the crop body P at the front end of the pulling and conveying device 15 at the clamping start end of the pulling and conveying device 15. The foliage collecting device 34 includes front pulleys on the front and rear portions of the left and right support frames 36 and 36 attached to the left and right support members 35 and 35 fixed to the front end portions of the left and right frames 19 and 19, respectively. 37 and 37 and the rear pulleys 38 and 38 are pivotally attached, and the left and right front pulleys 37 and 37 and the rear pulleys 38 and 38 have a large number of lugs 39a. The belts 39 and 39 are wound around, and the rotation shafts of the rear pulleys 38 and 38 are connected to the upper portions of the rotation shafts 25 and 25 that rotate integrally with the driven pulleys 21 and 21 of the pulling and conveying device 15 through a universal joint. Is configured. This foliage collecting device 34 is arranged in an inclined posture so that the front sides of the left and right collecting belts 39, 39 spread outward in the left and right sides and are located at the lower side. As a result, the scraping belts 39 and 39 act so as to scrape the stems and leaves PL of the crop body P spreading left and right while lifting the leaves toward the clamping start end of the pulling and conveying device 15. The revolving speed of the scraping belts 39, 39 is set so that the speed at the rear of the airframe is slightly higher than the forward speed of the airframe. P is not pushed down.

  Further, since the rear pulleys 38, 38 for driving the foliage collecting device 34 are provided above the driven pulleys 21, 21 of the pulling and conveying device 15, when the crop body P is a ginger, the pulling and conveying device 15 When sandwiching the foliage part PL, it is difficult to break the ginger that grows laterally. That is, when the ginger in the ground grows to the left and right and a plurality of foliage parts PL grows side by side widely, the lifting and conveying device 15 is an intermediate part of the plurality of foliage parts PL that stands on the left and right. In this case, a rear pulley for driving the foliage collecting device is provided below the driven pulleys 21 and 21 of the pulling and conveying device 15 and is sandwiched between them. When the side pulley protrudes greatly downward, the left and right ends of the ginger that has spread to the left and right are pulled to the left and right when the left and right stems and leaves PL come into contact with the protruding portion. The ginger may be bent so as to be greatly curved, or, alternatively, the foliage PL on the left and right ends of the rear pulley passes through the contact point with the lower protrusion of the rear pulley, and the left and right ends of the stem and leaves are greatly slackened. The left and right ends of the spread ginger are not pulled up by the foliage sandwiched by the pulling and conveying device 15, but are pulled up only at the left and right center side. Therefore, the ginger spread to the left and right is larger than the above. It may be bent and cracked. However, in this example, since the rear pulleys 38 and 38 for driving the foliage collecting device 34 are provided on the upper side of the driven pulleys 21 and 21 of the pulling and conveying device 15, such a problem can be avoided.

  Further, the crop harvesting machine of the present example is provided with a scraping device 40 that scrapes out the foliage portion PL discharged to the rear of the machine body from the clamping conveyance terminal portion C of the pulling and conveying apparatus 15 to the rear of the machine body. Thereby, the foliage portion PL discharged from the pinch conveyance terminal portion C of the pulling conveyance device 15 to the rear of the machine body does not stagnate at the pinching conveyance terminal portion C, and the cut foliage portion PL (leaf tip side portion PL2) is cut. The discharge operation by the operator can be performed quickly and accurately. In this example, the scraping device 40 is composed of rotating drums 41 and 41 provided on the left and right. The left and right rotary drums 41, 41 rotate integrally with extension rotary shafts 42, 42 that rotate integrally with the rotary shafts 23, 23 above the rotary shafts 23, 23 of the drive pulleys 20, 20 of the pulling and conveying device 15. It has a simple drive configuration. Further, since the diameters of the rotary drums 41 and 41 are larger than the diameters of the drive pulleys 20 and 20 of the pulling and conveying device 15, the peripheral speeds of the rotating drums 41 and 41 are faster than the pinching and conveying speed of the pulling and conveying device 15. As a result, even if a large amount of the foliage portion PL is discharged from the pinching and conveying terminal portion C of the pulling and conveying device 15, it can be scraped off without stagnation at the pinching and conveying terminal portion C. Further, since the outer peripheral surface of the drum is covered with an elastic material such as sponge, the foliage portion PL can be scraped off satisfactorily without slipping. In addition, since the left and right rotation drums 41, 41 are provided at a position where the left-right distance is the narrowest, or a position where they are in contact with each other so as to be located on the rear side of the clamping conveyance terminal position C of the pulling conveyance device 15. Since the left and right rotary drums 41 and 41 scrape out the foliage PL after being discharged from the nipping and conveying end point C of the pulling and conveying device 15, the foliage PL can be scraped out accurately.

  Accordingly, the crop harvesting machine according to the present invention includes the walking control type traveling device 1 and the pulling and conveying device 15 that lifts and conveys the foliage portion PL of the crop body P, and the rear lower portion of the pulling and conveying device 15 is provided. A cutting device 16 for cutting the foliage part PL of the crop body P is provided on the side, and the holding part of the pulling and conveying device 15 at the time when the cutting device 16 cuts the foliage part PL from the holding start end point A of the pulling and conveying apparatus 15 The crop body lifting height H up to B is set to be smaller than the maximum depth d of the final crop E of the crop body P that has grown in the ground before the lifting and conveying device 15 operates. Moreover, the said crop body raising height H is set to 2-6 cm.

  Further, the walking maneuvering type traveling device 1 includes traveling rotators 2, 2; 3, 3 on both right and left sides, and an engine 4, a mission case 5 and a steering handle 6 for walking maneuvering on the rear side. The conveying device 15 is provided with a pair of left and right pulling and conveying belts 14 and 14 that lift and convey the foliage portion PL of the crop body P in a rear-up and inclined posture.

  The pulling and conveying belts 14 and 14 of the pulling and conveying device 15 are disposed between the left and right traveling rotary bodies 2, 2; It is arranged in an inclined posture that rises rearward near the middle part.

  In addition, the engine 4 is disposed at the rear part of the aircraft, the transmission case 5 is disposed at the front side of the engine 4, and the left and right frames 19, 19 extending in a rearward posture toward the front of the aircraft are fixed to the front part of the transmission case 5. The pulling and conveying device 15 is disposed above the frames 19 and 19, and transmission members that transmit power for driving the traveling rotators 3 and 3 are provided on the left and right sides of the transmission case 5. The traveling rotators 3 and 3 are mounted via a transmission case extending downward from the bottom.

  Also, by using this crop harvesting machine, the foliage PL of the crop body P is sandwiched and pulled up by the pulling and transporting device 15 that is driven and rotated, and the final harvest E of the crop body P that has grown in the ground. A crop harvesting work method in which the foliage PL is cut by the cutting device 16 before the bottom rises above the ground surface can be employed.

  Therefore, this crop harvesting machine moves the machine forward by the walking maneuvering type traveling device 1, and lifts and conveys the foliage part PL of the crop body P by the pulling and conveying device 15. The set pulling height is 2-6 cm. At this time, the final harvest E of the crop body P in the soil is also raised, and the roots stretched in the soil are torn off. And the foliage part PL is cut | disconnected by the cutting device 16 before the bottom part of the last harvest E raises upwards from the ground surface. For this reason, the final harvested product E remains in a state where the upper side is covered with soil or the like. The root-side portion P1 of the crop body P after being cut by the cutting device 16 passes through the left and right frames 19 and 19 and the space portion S formed below the mission case 5 to the rear of the machine body. After performing such work, the root side portion P1 of the crop body P left in the field is pulled out of the field by the operator and the final harvest E is collected, but has been pulled up once by the work. Therefore, it can be picked up easily and quickly with a light force, and it is not pulled out completely, but is left with the soil etc. covered on the upper side of the final harvest E, resulting in a decrease in quality due to drying, etc. Hateful. On the other hand, the leaf tip side portion P2 cut by the cutting device 16 and cut off from the root side portion P1 is discharged from the rear end portion of the pulling and conveying device 15 and discharged to the side of the machine body by the operator. Therefore, it is possible to save labor in the harvesting work of the agricultural products such as the ginger and avoid the deterioration of the quality after the harvesting work as much as possible. In addition, the pulling and conveying apparatus can be shortened back and forth, and a crop harvesting work machine having a simple and compact structure and good machine maneuverability can be obtained.

Side view of a crop harvester. Top view of a crop harvester. A sectional front view of a crop harvesting machine.

Explanation of symbols

1: Traveling device 2, 2: Front wheel (traveling rotator)
3, 3: Rear wheel (running rotating body)
4: Engine 5: Mission case 6: Steering handle 14, 14: Lifting transport belt 15: Pulling transport device 16: Cutting device 17: Foliage base 19, 19: Frame A: Holding start end position of the lifting transport device B: Cutting device Clamping point of the pulling and conveying device at the time of cutting the foliage H: Crop lifting height S: Space P: Crop body PL: Crop foliage P1: Crop root part P2: Crop foliage Front part E: Final harvest d: Maximum depth of final harvest in the soil before harvesting

Claims (6)

A walking maneuvering type traveling device 1 and a lifting and conveying device 15 for holding the foliage portion PL of the crop body P in a lifted manner are provided, and the foliage portion PL of the crop body P is cut below the rear portion of the lifting and conveying device 15. A cutting device 16 is provided, and the crop body lifting height H from the holding start end portion A of the pulling and conveying device 15 to the pinching point B of the pulling and conveying device 15 at the time when the cutting device 16 cuts the foliage part PL, A crop harvesting work machine characterized in that it is set to be smaller than the maximum depth d of the final harvest E of the crop body P that has grown in the ground before the pulling and conveying device 15 operates. The crop harvesting machine according to claim 1, wherein the crop body lifting height H is set to 2 to 6 cm. The walking maneuvering type traveling device 1 is provided with traveling rotators 2, 2; 3, 3 on both the left and right sides and an engine 4, a mission case 5 and a steering handle 6 for walking maneuvering on the rear side. 15. The crop harvesting machine according to claim 1, wherein a pair of left and right pulling and conveying belts 14 and 14 that pull up and convey the foliage portion PL of the crop body P are provided in a rearwardly inclined posture. The pulling and conveying belts 14 and 14 of the pulling and conveying device 15 are arranged between the left and right traveling rotating bodies 2, 2; 4. The crop harvesting machine according to claim 3, wherein the crop harvesting machine is arranged in a tilted posture that rises backward in the vicinity. The engine 4 is disposed at the rear of the machine body, the transmission case 5 is disposed at the front side of the engine 4, and left and right frames 19, 19 extending in a rearward posture toward the front of the machine body are fixed to the front of the transmission case 5. 19 and 19, the pulling and conveying device 15 is disposed, and transmission members for transmitting power for driving the traveling rotators 3 and 3 are provided on both left and right sides of the mission case 5, and below the bottom of the mission case 5. 4. The crop harvesting machine according to claim 3, wherein the traveling rotators 3 and 3 are mounted via a transmission case that is extended on the farm. It is pulled before the bottom of the final harvest E of the crop body P that has grown in the ground rises above the ground surface by sandwiching and lifting the stem and leaf part PL of the crop body P by the driven transporting and lifting device 15. A crop harvesting operation method characterized by cutting the foliage part PL with the device 16.

Images