JP2001352815A - Harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a harvester capable of digging a root vegetable crop 16 of a mulching culture cultured in a ridge 14 covered with a mulching film 47. SOLUTION: This harvester is equipped with a mulch press 49 for pressing the mulching film 47 in pulling out a crop. The mulch press presses the mulching film from a period before pulling out the crop to a period after pulling out the crop. The mulch press comprises three rollers 49 arranged in the advance direction of the machine body in a side view and presses the mulching film from a period before pulling out the root vegetable crop to a period after pulling out the root vegetable crop. The rollers constituting the mulch press are composed of an elastic material. The supporting structure of the rollers constituting the mulch press is equipped with a vertical adjustment mechanism and/or an elastically pressing mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harvester for excavating root crops such as onions cultivated in a plurality of rows per row.

[0002]

2. Description of the Related Art Conventionally, a self-propelled vehicle that runs across a ridge on which a plurality of root crops are cultivated, a transfer device that sandwiches the foliage of the root crop and lifts up from a field, and a root crop in front of the transfer device It consists of a vertical weeding device that weeds the foliage of the crop, and a working unit that has two left and right digging blades that dig up and excavate the underground portion below the feed start end of the transfer device. There was a harvester.

[0003]

The conventional harvester cannot excavate a multi-cultivated root crop grown in a row covered with a multi-film. It is an object of the present invention to provide a new harvester capable of doing this.

[0004]

According to a first aspect of the present invention, there is provided a harvester having a transfer device for nipping and transporting roots of a root crop from the ground. A multi-presser for holding the multi-film covering the ridge at the time of removal is provided to prevent the multi-film from floating. By holding the film from before the extraction of the root vegetable crop to after the extraction of the root vegetable crop, the lifting of the multi film can be reliably prevented. The multi retainer is
By arranging three rollers on the fuselage advancing in side view and holding the film from before extracting the root crop to after extracting the root crop, it is possible to properly hold the multi-film from before the extraction of the root crop to after the extraction of the root crop. be able to. Since the roller constituting the multi-holding member is made of an elastic material, the film can be prevented from being broken. By providing the up-down adjustment mechanism and / or the repression mechanism in the support structure of the rollers constituting the multi-holding, the multi-film can be appropriately pressed in response to the change in the shape of the ridge and the unevenness of the ridge surface.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an overall left side view of the onion harvester, FIG. 2 is a right side view thereof, FIG. 3 is a plan view thereof, FIG. 4 is a side view of the working section, and FIG. Is composed of a self-propelled vehicle (1) and a working unit (2). The self-propelled vehicle (1) has an engine (3) and a transmission case (4) having a transmission mechanism interlocked with its output unit. And a transmission case (5) extending left and right from the transmission case (4)
(6), right and left final cases (7) and (8) connected to the transmission cases (5) and (6), and left and right drive wheels (9) and (10) supported by the final cases (7) and (8). )
And a body frame (11) extending forward while supporting the rear part of the transmission case (4) and the left and right final cases (7) and (8), and being mounted on the front left side of the body frame (11) so as to be able to move up and down. It consists of a gauge wheel (12) arranged on the front extension line of the left drive wheel (9), a steering handle (13) extending rearward and upward from the rear of the body frame (11), and the like.

Further, by providing the right final case (8) and the right driving wheel (10) more laterally than the left final case (7) and the left driving wheel (9), the right and left driving wheels are provided. (9) (10) is a row for four rows (14)
The valleys (15) on both sides can be run, and the gauge wheel (12) is formed to run on the valley (15) on the left side of the ridge (14). The right transmission case (6) and the right transmission shaft contained therein are configured to be telescopic so that the distance between the left and right drive wheels (9) and (10) can be adjusted according to the width of the ridge (14). That is, the self-propelled vehicle (1) is configured to run across a furrow (14) for cultivating onion (16), which is a root vegetable crop, in four rows.

The body frame (1) of the self-propelled vehicle (1)
The work part (2) for assembling onions (16) for two lines on one side of the ridge (14) (left side in the machine traveling direction) by assembling various components into the work part (1). Is disposed in front of the fuselage to vegetate the foliage (16a) of two onions (16) to the left and right, and to raise the foliage (16a) in the lying state. A two-row, three-row weeding case (18), which is a vertical weeding device having a grass tine (17), and a weeding case (18) disposed behind the weeding cases (18). 1
8) The foliage (1) of two onions (16) introduced between
A pair of left and right scraping cases (20), which is a scraping device having a scraping belt (19) with locking projections for scraping 6a) to the rear side of the central weeding case (18); A pair of left and right belts stretched from the lower rear side of the lower case to the rear of the machine in a front-rear, rear-to-height manner, and the foliage of two onions (16) after scraping between the belts. A pair of left and right pull-out belts (21), which are transfer devices for pulling up the ball portion (16b) of the onion (16) from the ground by transporting the portion (16a) upward and rearward; The blade portion (22b) extends laterally (inward) from the lower end of the vertical arm portion (22a) to be swung, and the blade portion (22b) digs up and excavates the underground portion below the feed start end of the transfer device. And a pull-out belt (2) from substantially below the middle of the pull-out belt (21). Gentle inclination angle than) (a pair of belts stretched to the rear end lower substantially horizontal) withdrawal belt (21), pull-out belt (21 between its belt)
(1) of two rows of onions (16) transported by
6a) a pair of left and right ball transport belts (23), which are lower transport devices for transporting the body rearward while holding the base end thereof, and the pull-out belt (2) above the ball transport belt (23).
1) Foliage cutting which is disposed below and cuts and separates a ball portion (16b) clamped and conveyed by a ball portion conveying belt (23) and a foliage portion (16a) clamped and conveyed by a pull-out belt (22). The cutting blade (24), which is a device, and the left pulling belt (22) are disposed below the rear end of the cutting blade (16).
The star wheel (25), which is a foliage releasing device that discharges a) to the left side of the fuselage, and the ball transport belt (24) are disposed behind the ball, and the ball (16b) is released from the rear of the fuselage to the upper surface of the ridge (14). Ball release belt (26), which is a crop release device
And

The components of the working section (2) transmit power of the engine (3) by a transmission mechanism shown in FIG. 5, and are transmitted from the transmission case (4) to the working clutch (2).
7) a work output shaft (28) extending forward through
The drive case (30) is inserted into the working unit drive case (30) through the front-rear transmission tube (29), and is interlocked with a left-right drive shaft (31) that is bearing-supported by the drive case (30). A pull-out conveyance drive shaft (34) interlockingly connected via a worm (32) and a worm wheel (33) is provided at an intermediate portion of the drive shaft (31) so as to protrude upward. The rear drive pulley shaft (37) of the pullout belt (21) is interlocked and connected by chain transmission, and the left and right pullout belts (21) are rotationally driven in a predetermined direction. The front driven pulley shaft (37) of the left and right ball portion conveyor belt (23) and the upper drive pulley shaft (38) of the left and right scraping belt (19) are attached to the front driven pulley shaft (36) of the pulling belt (21). The right and left ball portion conveying belt (23) and the left and right scraping belt (19) are rotationally driven in a predetermined direction by interlocking connection by chain transmission. A crank (39) is provided at the left end of the drive shaft (31), and a front end of a pitman (40) extending forward from the crank (39) to the left outside of the working unit (2) is attached to the vehicle body. The excavating blade (2) that supports the middle of the frame (11) at the front left side via a support shaft (41) so as to be swingable in the front-rear direction.
2) connected to the upper end of the vertical arm (22a), and
2) is driven to swing back and forth. Further, a rear end of a transmission shaft (42) extending in the front-rear direction on the right outside of the working unit (2) is interlockedly connected to a right end of the drive shaft (31), and a weed tine (17) is mounted. The right end of the upper drive sprocket shaft (44) of (43) is connected to the transmission shaft (4).
2) The weeding tine (17) of each weeding case (18) is circulated and connected to the front end of (2). Further, power transmission to the cutting blade (24) is performed by a flexible shaft (45) interlockingly connected to the right end of the drive shaft (31), and the star wheel (25) is connected to the left pulling belt (2).
1) The shaft is supported on the rear drive pulley shaft (37) and is rotated integrally with the left pulling belt (21). Power is transmitted to the ball discharging belt (26) by the right ball conveying belt (23). This is performed by a transmission mechanism (not shown) that is linked to the rear driven pulley shaft (46).

In the working section (2), a weeding case (18) at the center is arranged on the center line in the left-right direction, and a scraping path between the left and right scraping belts (19) and a left and right pull-out belt ( 21) to form an upper clamping conveyance path between the left and right ball portion conveyance belts (23).
The left and right scraping belts (19), the left and right pull-out belts (21), and the left and right ball section conveying belts (23) are arranged at symmetrical positions about the left and right center lines of the working section (2), and the central weeding case (18) Left and right weeding cases (18) with the same spacing as the cultivating strips of onions (16) excavated on the left and right sides of
Is arranged, and the vehicle runs across the ridge (14) so that the left and right centers of the working unit (2) pass through the center of the two onions (16) on the left side in the body traveling direction of the ridge (14). The onion (16) is excavated, and the excavation order of the onion (16) of each ridge (14) is, as shown in FIG. 7, from one end of one ridge (14) to the other. Advancing to the end of the ridge, excavating the left two ridges in the advancing direction of the body, turning to the right, and moving forward from one end of the ridge (14) on the right side to the other end. The body is advanced in the direction opposite to the process, and two strips on the left side in the body traveling direction are dug. All the ridges (14) are formed by the continuous digging step (A) in which the excavation work of one round trip and two steps is sequentially developed to the ridge (14) on the right side in the traveling direction.
Excavation of two strips on one side. After that, the two strips remaining in each ridge (14) are subjected to a continuous drilling step (B) similar to the continuous drilling step (A) except that only the work start position and the direction with respect to the field are reversed. Is what you do. In this excavation work, the rounding performed at both ends of the ridge (14) can be easily performed with a large radius, and the work efficiency is improved, compared with the excavation work in which two rounds of reciprocation are performed for each ridge (14). It is valid.

As shown in FIG. 6, the above-mentioned onion harvester can excavate a multi-cultivated onion (16) cultivated on a ridge (14) covered with a multi-film (47).
It has the following configuration.

That is, the weeding tine (17) of each weeding case (18) is made of an elastic material such as rubber, and as shown in FIG. (17
a) The lower end is made to approach the upper surface of the ridge (14) permanently, and the foliage (16a) of the onion (16) lying on the surface of the multi-film (47) is properly picked up by the weeding tine (17). It is configured such that the weed tine (17) can be caught on the multi-film (47) and prevented from being wound up or broken while being lifted. The weeding tine (17) made of an elastic material is also effective because it can prevent the ball portion (16b) of the onion (16) from being damaged.

The moating blade (22) is attached to the body frame (1).
On the left side of the front part of 1), a vertical arm part (2
2a) has a single structure of only the digging blade (22) that swingably supports in the front-rear direction, and the blade portion (22b) of the digging blade (22) is located on the left hem side of the ridge (14). From the onion (16) of the outermost strip (rows in the second row from the left) excavated in one step, and two onions (16) with one engraving blade (22). ), And like a two-piece moat,
It is configured such that a digging blade inserted into the ground from the center of the ridge (14) is omitted.

The vertical arm (2) of the moat blade (22)
A multi-cutter (48) for cutting a multi-film (47) covering the ridge (14) is attached to 2a). The cutter (48) is provided with a vertical arm portion (22) of the engraving blade (22).
a) (preferably immediately before) a multi-film (4
7) is cut, and the vertical arm portion (22a) of the engraving blade (22) is cut.
It is sufficient if the film can prevent the film (47) from being wound up or broken. For example, a disc-shaped cutter (48) as shown in the figure is provided on the lower outer side of the vertical arm portion (22a) of the excavating blade (22). At the lower part on the front side of the digging blade (22), which protrudes forward of the vertical arm (22a) and cuts into the ground,
The film (47) on the left skirt side of 4) is cut. Here, since the moating blade (22) is constituted by one, only one multi-cutter (48) is required, the structure is simplified, and the cutter (4) is provided at the center of the ridge (14).
8) If there is no excavation, when the foliage (16a) of the two onions (16) on the right side in the advancing direction of the fuselage is lying on the left side, the foliage (16a) is cut off. The excavation of the two onions (16) does not become impossible. The multi-cutter (48) is attached to the body frame (1
Instead of 1), it is attached to the excavating blade (22), swings back and forth integrally with it, and is covered with soil at the slope or valley (15) of the ridge (14) and both sides by a multi-holding roller (49) described later. Is cut off the side of the film (47) in which is pressed, so that the cutting can be surely performed, which is effective. The multi-cutter (48) properly adjusts the film (4) according to the shape change of the ridge (14) and the unevenness of the surface of the ridge (14).
It is preferable to attach to the engraving blade (22) so that the cutting position can be adjusted back and forth, up and down, and left and right so that 7) can be cut.

In addition, onions (1
6) A multi-holding roller (4) for holding the multi-film (47) when pulling up and cutting the film (47).
9) are provided in the traveling direction. This roller (4
9) The belt portion (16b) of the onion (16) is changed by the belt (21) immediately before the base end of the foliage (16a) of the onion (16) is sandwiched between the left and right pulling belts (21). The film (4) on both sides of the two strips of onion (16) dug in one step until it is completely withdrawn from the ground and completely withdrawn from the planting hole (not shown) of the film (47).
7) is pressed from above, and when the ball portion (16b) of the onion (16) is pulled out, the film (4) is put together with the ball portion (16b).
7) In order to prevent the floating of the onion (16) of each strip and between the onions (16) of each strip, three pieces are lined up in a row in a row from the rear side of the scraping belt (19). Belt (2
Three rollers are provided at regular intervals in the front-rear direction (machine body traveling direction) below the feed start end of 3), and the rollers (49) are arranged outside the onion (16) of each line and the onion (16) of each line. ) Are arranged in three rows. The rollers (49) in each row are provided with support arms (5) extending from the body frame (11) in each row.
0). Each roller (49) has a ridge (1
It is preferable to provide an up-and-down adjustment mechanism, a repression mechanism, and the like on the support structure so that the film (47) can be properly pressed in response to the shape change of 4) and the unevenness of the surface of the ridge (14). Further, the roller (49) is attached to the film (4).
It is preferable to use a material such as rubber or sponge having a certain degree of elasticity or to cover the outer surface with a cover of a similar material so as not to break 7).

[0015]

As is apparent from the above embodiments, the present invention relates to a harvester having a transfer device (21) for holding a foliage (16a) of a root vegetable crop (16) and carrying it out of the ground. Multi-presser foot (49) for holding multi-film (47) covering ridge (14) when root crop (16) is pulled out
Ridges (14) covered with the multi-film (47) to prevent the multi-film (47) from lifting.
It is also possible to excavate the cultivated root crops (16) cultivated in. By holding the film (47) from before the extraction of the root crop (16) to after the extraction of the root crop (16), the multi-film (4) is used.
The lifting of 7) can be reliably prevented. The multi-retainer (49) moves the roller (49) to the body in a side view.
Arranged individually, root crops (16) Root crops (16)
By holding the film (47) until after the extraction, the multi-film (47) can be appropriately held during a period from before the extraction of the root crop (16) to after the extraction of the root crop (16). Since the roller (49) constituting the multi-hold is made of an elastic material, it is possible to prevent the film (47) from being broken. Roller (49) constituting multi-hold
By providing a vertical adjustment mechanism and / or a repression mechanism in the support structure, the multi-film (47) can be appropriately pressed in response to a change in the shape of the ridge (14) and irregularities on the surface of the ridge (14).

[Brief description of the drawings]

FIG. 1 is an overall left side view of an onion harvester.

FIG. 2 is an overall right side view of the onion harvester.

FIG. 3 is an overall plan view of the onion harvester.

FIG. 4 is an explanatory side view of a working unit.

FIG. 5 is an explanatory plan view of a working unit.

FIG. 6 is an explanatory front view of a moat part.

FIG. 7 is an explanatory diagram of a work process for digging

[Explanation of symbols]

 (14) Ridge (16) Onion (root vegetable crop) (21) Extraction belt (transfer device) (47) Multi-film (49) Multi-holding roller

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yukihiro Fukuda 428 Enami, Onami, Okayama Pref.Seirei Industry Co., Ltd. Reference) 2B072 AA03 BA02 BA30 CA12 DA12 DA19 EA01

Claims (5)

[Claims] 1. A harvester having a transfer device for nipping and transporting root crops from the ground while holding the foliage of the root crop, comprising a multi-presser for holding a multi-film covering a ridge when the root crop is pulled out, wherein the multi-presser is provided. Is a harvester characterized by holding the film from before the root vegetable crop to after the root vegetable crop. 2. The harvester according to claim 1, wherein in the multi-holding device, three rollers are arranged in the body progression in a side view, and the film is pressed from before the root vegetable crop is extracted until after the root vegetable crop is extracted. 3. The harvester according to claim 1, wherein the roller constituting the multi-hold is made of an elastic material. 4. The harvester according to claim 1, wherein an up-down adjustment mechanism is provided in a support structure of the rollers constituting the multi-holding device. 5. The harvester according to claim 1, wherein an elastic pressure mechanism is provided on a support structure of the rollers constituting the multi-hold.