JP3176056U - Lawn seed harvester - Google Patents

Abstract

A turf seedling harvester that harvests the above-ground stems of turf growing in a field is provided.
A turf seedling harvesting machine 100 includes a main body frame 1 that moves on the ground, a rotating shaft 2 that is supported by the main body frame 1 and that is horizontal to the ground and inclined with respect to a moving direction d1, and a circumference of the rotating shaft 2. A large number of rod-like vertical blades 4a extending in the radial direction with an interval in the axial direction from the surface, and a rhizome of the turf extending horizontally from the tips of the vertical blades 4a and growing on the ground And a large number of bar-shaped side blade portions 4b that move on the upper surface portion. Furthermore, the long blade portion 4a or the horizontal blade portion 4b is arranged at the flying position of the soil and turf cut pieces on the ground surface that repels upward after being cut, and has a large number of narrow widths through which the turf cut pieces can pass. A collision device provided with a hole is provided.
[Selection] Figure 1

Description

The present invention relates to a turf seedling harvesting machine that can efficiently harvest turf seedlings composed of grass stalks and the like from a field where turf grows.

For example, Patent Document 1 discloses that the lawn is thinned out from the field where the lawn grows and the thinned lawn is used as a lawn seedling. According to Patent Document 1, by using a green mower to which a hatching reel is attached, the green mower cuts grass leaves at a position higher than the ground surface by the mowing portion, and then the wire-like main portion of the stitching reel is turf. Scratch and thin out. Lawn seedlings, such as turf ground stalks scraped off at the wire part of the stitching reel, are collected after green mowers are harvested and sprayed on the green land. Since the turf seedlings thus obtained are obtained by scratching, the turf stalks stretched vertically and horizontally are torn short, and the germination sites are damaged, so that growth cannot be expected.

On the other hand, when harvesting all the turf from the field instead of thinning out, the turf of the field is cut into a mat shape with a sword cutter, the turf mats are united, transported to the factory, and then chopped by a divider. In general, a sprig (twig) having a length of about ± 2 cm with respect to 7 cm is used, and the attached field soil is applied to a trommel (sieving) to separate it from the field soil to obtain a turf seedling.

In addition, a technology that removes weeds by cutting a part of the stalks of the rake blades with a certain width under the lawn ground and the blade edge of the rake that draws the wavy traces up and down in the manner of combing the hair is patent document 2 is disclosed. According to this technique, among the stalks extending vertically and horizontally, the stalks orthogonal to the rake are cut, but the other stalks and upright stalks are warmly pressed and only the weeds can be removed.

JP-A-6-90612 Japanese Patent No. 3711899 (Japanese Patent Laid-Open No. 2002-354978)

The method of cutting the seedlings into mats and then subdividing them removes the topsoil of the field together, and such mat turf is heavy and work is heavy labor. Further, when the turf mat is shredded with a finer, the turf mat is shredded without regard to the top and bottom, so that it is inevitable to damage the germination site. In addition, a loss occurs because it cannot be completely separated from the field soil. Since the turf stock remains as a lump, there is a problem that the subsequent planting machine will be hindered.
Therefore, it is desired that the turf seedling can be directly harvested from the field without being damaged, instead of being harvested in a mat form from the field.
An object of the present invention is to provide a turf seedling harvesting machine that can prevent damage to turf seedlings and can be harvested efficiently.

In order to achieve the above object, a lawn seed harvester of the present invention includes a main body frame that moves on the ground, a rotating shaft that is supported by the main body frame and that is horizontal to the ground and inclined with respect to the moving direction, A large number of rod-shaped vertical blade portions extending in the radial direction from the peripheral surface of the rotary shaft and extending in the radial direction, and lawn that extends horizontally from the respective tip portions of the vertical blade portions and grows on the ground And a large number of rod-shaped horizontal blades that move on the surface of the ground above the rhizome.

According to the turf seedling harvesting machine of the present invention, by cutting the surface portion above the underground stem, the horizontal blade extending horizontally to the ground extends the ground stem vertically and horizontally, not only in the vertical direction. Because it is shredded in the horizontal direction, the amount of uncut material is reduced. For this reason, there is no need to chop the turf seedling harvester twice for the second time, and the cut turf is not damaged. In addition, after harvesting, the rhizome part of the turf and the turf with roots remain, and since these are regenerated, it can be performed about three times a year.

It is the figure which looked at the use condition of the turf seedling harvester which is the 1st example of the present invention from the upper part. It is the figure which looked at the use condition of the said lawn seed harvester from back. It is the figure which looked at the same radial surface of the rotating shaft of the said turf seedling harvester from the side. It is the figure which looked at the some adjacent cutting blade body on the said rotating shaft from upper direction. It is a figure which shows the form of turf. It is the figure which looked at a mode that each cutting blade body cuts the floor soil of lawn from the side. It is the figure which looked at a mode that a cutting blade cut | disconnects the ground stem which cross | intersected the length and breadth on the horizontal surface of a floor soil upper layer part from the upper direction. It is the figure which looked at the use condition of the turf seedling harvester which is the 2nd example of the present invention from the side. It is the figure which looked at the use condition of the turf seedling harvester of a 2nd Example from the diagonally rear left side. It is the figure which looked at the use condition of the turf seedling harvester of a 2nd Example from the diagonally right back.

Embodiments of the present invention will be described in detail with reference to the following examples.

FIG. 1 is a view of the use state of the turf seedling harvester 100 according to the first embodiment as viewed from above, and FIG. 2 is a view of the use state of the turf seedling harvester 100 as viewed from the rear.
The turf seedling harvesting machine 100 is for supporting the main body frame 1, the rotary shaft 2, and a large number of rod-shaped cutting blade bodies 3 fixed at intervals in the axial direction of the rotary shaft 2 and the main body frame 1 on the ground. A pair of support wheels 4 and 4 and a cover 5 covering the rotating shaft 2 and the cutting blade body 3 are provided.
The main body frame 1 has a transmission case 1b fixed to the lower part of the mast frame 1a, and a side case 1c1 and a side plate 1c2 fixed to the left and right ends of the transmission case 1b. The mast frame 1a is supported by a tractor, which is a representative example of the vehicle 6 that travels on the ground, via an existing link mechanism 6a. The link mechanism 6a can control the height and posture of the main body frame 1 by the operation of the hydraulic drive unit of the tractor 6, and has a positioning mechanism 6b for determining the orientation of the main body frame 1 on the horizontal plane with respect to the traveling direction of the tractor 6. It has. This positioning mechanism 6b may be manually operated.

The rotary shaft 2 is rotatably mounted between the side case 1c1 and the side plate 1c2, and is rotated by transmitting the power of the tractor 6 through the rotation transmission mechanism a1. A large number of cutting blade bodies 3 are arranged radially on the outer peripheral surface of the rotating shaft 2 at appropriate intervals in the longitudinal axis direction of the rotating shaft 2.
The support wheels 4 and 4 can be horizontally turned with respect to the ground surface through the longitudinal axis portions 4b and 4b at the rear end portions of the pair of left and right rod-like support arms 4a and 4a extending rearward from the transmission case 1b. It is installed.

3 is a view of two cutting blades 3 and 3 on the same radius surface of the rotary shaft 2 as viewed from the side, and FIG. 4 is a view of a plurality of adjacent cutting blades 3 on the rotary shaft 2 as viewed from above. It is. As shown in FIGS. 3 and 4, each cutting blade 3 is formed in a rod-like shape with respect to the rotary shaft 2 from the radial vertical blade portion 3 a of the rotary shaft 2 and the distal end portion of the vertical blade portion 3 a. And a horizontal blade portion 3b extending horizontally. FIG. 5 is a cross-sectional view of the ground b1 of the field where the grass c1 is grown. The turf c1 has a ground stalk c3 (hereinafter referred to as “ground stalk”), a tiller c5 having a root c4, and an underground stalk c2 (hereinafter referred to as “underground stalk”). The vertical blade portion 3a has a depth of preferably about 5 mm, up to a depth that does not reach the underground stem c2 of the turf c1 through the ground surface portion b2 (the upper layer portion of the lawn floor soil) above the underground stem c2 of the turf c1 growing on the ground b1 of the field. Move so as to cut vertically. The horizontal blade portion 3b moves within a depth range that does not reach the rhizome c2 of the turf c1, preferably so as to cut a depth of about 5 mm in the floor soil upper layer portion b2. Each front edge of the vertical blade portion 3a and the horizontal blade portion 3b acts as a cutting blade. In particular, the front edge of the horizontal blade portion 3b is tapered such that a flank 3c is formed on the rear side in the rotational direction so that the floor soil upper layer portion b2 of the turf c1 and the grass c1 on the ground can be sharply separated. .

In this regard, when compared with the existing scratching claw body of the exclusive scratching rotary, the rotary scraping dedicated rotary is used so that a portion of, for example, 10 cm or more in the rotational radius direction of the alternative scratching nail body moves in the soil. And since the tip part of the scratching nail body is required to beat the soil surface, a sharp cutting edge is not required for the side blade part 3b of the tip part, and actually it is as sharp as the cutting blade of this example. It is not made into a proper shape.

The cover 5 prevents the soil and turf repelled upward when the cutting blade body 3 cuts the floor soil upper layer portion b2 from scattering and falling onto the uncut lawn. It is supported by 1c1 and the side plate 1c2.
The turf seedling harvester 100 is indexed by the tractor 6 and moves forward on the lawn in the field. During the movement, the link mechanism 6a supports the main body frame 1 at an arbitrary constant height in a state where the main body frame 1 is allowed to tilt forward and backward and left and right. Therefore, the left and right support wheels 4, 4 are displaced up and down following the unevenness of the lawn in the field and are always in contact with the ground, and the rotary shaft 2 is in a state along the surface of the lawn floor soil. Further, the link mechanism 6a tilts the main body frame 1 at an angle θ1 corresponding to the position of the positioning member 6b set in advance within a range of 30 degrees to 60 degrees with respect to the horizontal direction d2 of the tractor 6 while the tractor 6 moves forward. Supported.

When the rotary shaft 2 is rotated at a rotational speed in a rotational direction d3 determined in advance corresponding to the traveling direction d1 of the tractor 6, the tip portion of each cutting blade 3 rotates from the front side to the rear side in the traveling direction d1. Then, the floor soil upper layer part b2 shown in FIG. 5 is cut and separated from the ground. The ground soil upper layer part b2 cut and separated from the ground includes a ground stem c3, a tiller part c5 of the turf c1, and the like. These ground stem c3 and tiller part c5 form a turf seedling.
The floor soil pieces and turf pieces that have been cut and separated from the ground are repelled by the horizontal blade portion 3 b of the rotating cutting blade body 3 and dropped by the cover 5.

FIG. 6 is a side view of the cutting blades 3 cutting the lawn floor soil. The floor soil is shown as being cut by a vertical surface along the traveling direction d1 of the tractor. In the present embodiment, the two cutting blades 3 and 3 are fixed on the same radius surface portion in an arrangement shifted by 180 degrees, and the ground moves the floor soil upper layer b2 forward of the tractor 6 by rotating this. Cutting is performed at a pitch p1 corresponding to the speed and the rotational speed of the rotary shaft 2 and at a depth corresponding to the height of the cutting blade 3. As a result, a wavy cutting point b3 is formed on the ground cut by the cutting blade 3.

Since the two cutting blades 3 and 3 on the same radius surface portion are rotated around the rotation shaft 2 inclined at the inclination angle θ1 by one rotation, as shown in FIG. 4A, these cutting blades are rotated. The width e1 in the traveling direction d1 of the to-be-cut portion b3 cut into 3 and 3 has the same size as the pitch p1 in FIG. When the traveling speed of the tractor 6 is an appropriate magnitude with respect to the rotational speed of the rotary shaft 2, the unit cutting points by each cutting blade body 3 per one rotation of the rotary shaft 2 are not generated. It becomes a continuous state. As the inclination angle θ1 of the rotating shaft 2 is larger, the width in the left-right direction (width in the direction orthogonal to the traveling direction d1 of the tractor 6) of the unit cutting portion per rotation of each cutting blade 3 is increased. As a result, the cutting location by the two cutting blades 3 and 3 on the same rotational radius surface portion is a size related to the length of the horizontal blade portion 3b and the arrangement pitch of the cutting blades 3 in the length direction of the rotary shaft 2. And the width e2 is proportional to the inclination angle θ1 of the rotating shaft 2. And as this width | variety e2 is wide, the frequency of generation | occurrence | production of the uncut location of floor soil upper layer part b2 can be suppressed irrespective of the unevenness | corrugation of floor soil.

FIG. 4B is a view of the state in which the rotation shaft 2 is rotated with the inclination angle θ1 of the rotation shaft 2 with respect to the traveling direction d1 of the tractor 6 being 0 degrees as viewed from above. According to this, the width e3 of the cutting portion of the cutting blade bodies 3 and 3 on the same radius surface on the rotating shaft 2 is a size substantially matching the length of the horizontal blade portion 3b, and between adjacent cutting portions. The uncut portion f1 is formed, and the width e4 of the uncut portion f1 corresponds to the size of the arrangement pitch of the cutting blade 3 in the length direction of the rotary shaft 2. Therefore, in order to cut the floor soil with the cutting blade 3 so that an uncut portion does not occur, the inclination angle θ1 of the rotary shaft 2 is set to the traveling speed of the tractor 6, the rotational speed of the rotary shaft 2, and the shape of the cutting blade 3 In addition, it is necessary to have a size corresponding to the dimensions of each part and the arrangement of the cutting blades 3.

FIG. 7 is a view of the state in which the cutting blade 3 is cut from the above-ground stems c31 and c32, which have prospered so as to intersect vertically and horizontally on the horizontal surface of the floor soil upper layer b2. While the rotary shaft 2 is rotating, when the cutting blade of the side blade portion 3b inclined by the inclination angle θ1 of the rotary shaft 2 cuts the floor soil and turf, the ground stem c31 along the traveling direction d1 of the tractor 6 and the tractor 6 Any of the ground stems c32 along the left-right direction d2 can be hit on the ground in a crossing manner, and each ground stem c31, c32 is effectively struck. As for the size of the width e1 and the size of the arrangement pitch of the cutting blades 3 on the rotary shaft 2, the cut ground stem c3 is included in a large proportion in the range of 5 cm to 9 cm in length. decide. The ground stem c3 of this length has a good germination rate as a turf seedling.

After cutting the floor soil upper layer part b2 by the cutting action width of all the cutting blade bodies 3 of the rotary shaft 2 by one forward movement of the tractor 6, for example, all the cutting blades of the rotary shaft 2 during the backward movement By making the cutting action widths of the body 3 slightly overlap, the floor soil upper layer part b2 having an arbitrary width is efficiently cut so that an uncut portion does not occur without having to be cut multiple times at the same place. The
As shown in FIG. 4B, when the floor soil upper layer portion b2 is cut without tilting the rotary shaft 2, an uncut portion is generated, and the cutting edge of the horizontal blade portion 3b is in a state along the left-right direction d2. The ground stem c3 along the left-right direction d2 cannot be cut effectively. Therefore, in order to cut all the uncut portions, it is necessary to move the rotating shaft 2 twice or more on the floor soil upper layer portion b2 at the same location.

  As described above, the lawn seed harvester 100 of the present embodiment is used to cut the lawn floor soil upper layer b2 of the required area of the field, and the lawn pieces (ground stem c3 and root c4) are cut on the floor soil cut site. After the tiller portions c5) having been stacked, the grass pieces are accumulated in a row using an existing power collecting machine, etc., and the grass pieces grouped in this row are then accumulated. It is housed in a container using a power suction collector, etc., and after adjustment and selection, it is used as a lawn seedling.

On the other hand, the turf rhizome c2 and the tiller c5 at a deep position remain in the floor soil portion after cutting the lawn floor soil upper layer b2 and grow from the same harvesting area of the field. Lawn seeds can be harvested about three times a year.
In addition, when the field lawn is harvested as a mat-like lawn seedling, it takes about one year for the new lawn to grow on the floor soil where the lawn is cut off. Can only be harvested once a year.
According to this embodiment, the rhizome of the turf (ground stem) is almost completely shredded. Also, the grass roots tiller (lumps) is shredded, making it suitable for machine planting. At the time of harvest, field irregularities are corrected. Furthermore, an effective weed control action is obtained.

FIG. 8 is a view of the state of use of a lawn seed harvester 200 according to the second embodiment of the present invention as viewed from the side, and FIG. 9 is a view of the state of use of the lawn seed harvester 200 as viewed from the diagonally rear left side. FIG. 10 is a view of the state of use of the turf seedling harvesting machine 200 as seen from the right rear side. In these drawings, parts that are substantially the same as the parts described above are denoted by the same reference numerals. This will be described below with reference to FIGS. 9 and 10 and the related drawings described above.

The turf seedling harvesting machine 200 includes a turf soil cutting device 201 and a collision device 202 connected to the rear side thereof. The turf cutting machine 201 has almost the same configuration as that of the turf seedling harvester 100 according to the first embodiment, and only different points will be described next. The cover 5 has a shape in which the rear surface portion 5a of the cover 5 of the first embodiment is removed, and the floor soil upper layer portion b2 cut by the cutting blade body 3 and separated from the floor soil and the grass pieces included therein are slanted. The cover 5 is configured to be ejected outward and upward. The left and right support wheels 4, 4 are mounted to the front portions of support arms 4 a, 4 a extending forward from the transmission case 1 b via the vertical axis portions 4 b, 4 b so as to be freely displaceable around the vertical axis. The upper portion of the mast portion 1a is pivotally attached to the rear portion of the tractor 6 through a connecting rod g1 extending forward from this, and the operation of the hydraulic drive portion of the tractor 6 is related to the connecting rod g1 and the link mechanism 6a. Thus, the entire turf seedling harvesting machine 200 of this embodiment is configured to be moved up and down as necessary.

The collision device 202 includes supported portions 7a and 7b made of a pair of left and right plate members, a processing portion 8 coupled to the supported portions 7a and 7b, a vibration applying means 9 that vibrates the processing portion 8 up and down, Discharging means 10 is provided for dropping the object to be processed remaining on the processing unit 8 onto the ground.
The left and right supported portions 7a and 7b are fixed to the corresponding side case 1c1 and side plate 1c2 of the cover 5 via bolts, and are pulled by the tractor 6 and the turf earth cutting device 201 that travel on the ground. These supported portions 7a and 7b are bent at a midpoint in the front-rear direction d1, and when the rotary shaft 2 is set at a preferable inclination angle θ1 (for example, 45 degrees) with respect to the traveling direction d1 of the tractor 6, Are formed so as to be along the traveling direction d1 of the tractor 6.

The mixed material such as the soil cut off from the lawn floor soil upper layer b2 and the ground stem c3 of the turf c1 contained therein is sprung upward. The processing unit 8 has an insertion port 8a disposed at a position where the flying object comes, and is surrounded by a wall surface portion 8b except for the existence range of the input port 8a. The wall surface portion 8b includes a lower surface portion 8b1, left and right side surface portions 8b2, 8b3, and an upper surface portion 8d integrated with the rear surface portion 8c.

The lower surface portion 8b1 is disposed at a position where most of the flying objects bounced rearward and upward are processed. The flying object also comes to the left and right side surface parts 8b2, 8b3 and the upper surface part 8d integrated with the rear surface part 8c, but it is for the purpose of preventing the grass pieces from dropping and scattering.

The lower surface portion 8b1 has a lower surface frame formed by connecting the transverse bone members 11a1, 11a2, the longitudinal bone members 11b1, 11b2, and the oblique bone member 11c so as to be substantially along the horizontal plane, and the tractor is provided on the entire upper surface of the lower surface frame. 6, a plurality of vertical line members 12 along the front-rear direction d1 are fixed at a pitch that allows passage of grass pieces included in the floor soil upper layer portion b2 cut by the cutting blade 3 and separated from the ground. Since the turf piece has a length, in order to pass through the narrow hole formed between the vertical line members 12, it must pass through the long hole in a posture that matches the length direction of the long hole. I can't. Usually, once it collides with the edge of the slot, the posture is changed and the slot passes through. On the other hand, floor soil does not often hit the edge of the slot. Due to the collision of the grass pieces, the flight speed of the grass pieces is lower than that of the floor soil, and when the grass pieces fall on the ground surface, the late fallen grass pieces accumulate on the fallen soil.

The diagonal bone member 11 c is arranged in parallel to the rotation axis 2, and the rearmost horizontal bone member 11 a 2 is arranged along the left-right direction d 2 of the tractor 6. The left side surface portion 8b2 travels through the front and rear standing bone members 11d1 and 11d2 raised from the left vertical bone member 11b1 of the lower surface portion 8b1 and the vertical bone member 11e1 installed on the upper ends of the standing bone members 11d1 and 11d2. A large number of vertical line members 12 along the direction d1 are fixed at the pitch in the vertical direction on the standing plane. The right side surface portion 8b3 is connected to the front and rear standing bone members 11d3 and 11d4 raised from the right vertical bone member 11b2 of the lower surface portion 8b1, and the vertical bone member 11e2 erected on the upper ends of the standing bone members 11d3 and 11d4. Thus, a large number of vertical line members 12 along the front-rear direction d1 are fixed to the up-down direction on the upright plane at the pitch. Here, the right side surface portion 8b3 is shorter than the left side surface portion 8b2, and matches the length d1 in the front-rear direction of the left and right ends of the lower surface portion 8b1. The upper surface portion 8d is interposed through an oblique bone member 11f1 erected between the front ends of the left and right longitudinal bone members 11e1 and 11e2 and a lateral bone member 11f2 erected between the lengths of the left and right longitudinal bone members 11e1 and 11e2. A large number of vertical line members 12 along the front-rear direction d1 are fixed at the same interval as the pitch so as to be along the horizontal plane, and the front portion 12b of each vertical line member 12 protrudes obliquely downward and forward from the oblique bone member 11f1. Is formed. The rear surface portion 8c is formed by projecting the vertical line member 12 of the upper surface portion 8d in a curved shape obliquely downward and rearward. Therefore, the outer peripheral edge of the insertion port 8a is formed by the respective front end edges of the lower surface portion 8b1, the left and right side surface portions 8b2, 8b3, and the upper surface portion 8d.

A pair of plate-like arm pieces 13 and 13 are fixed to the outer surface side of the left and right side surface portions 8b2 and 8b3 so as to protrude upward at the front end portions of the left and right vertical bone members 11b1 and 11b2 that support the lower surface portion 8b1. ing. The processing unit 8 is rotatably coupled to the corresponding supported members 7a and 7b via the arm pieces 13 and 13 and the fulcrum shafts 14 and 14, respectively.

The vibration applying means 9 includes a pair of upright support plates 15 and 15 fixed in a protruding manner downward at the rear positions of the left and right vertical bone members 11b1 and 11b2 that support the lower surface portion 8b1, and the upright support plates 15 and 15 respectively. Bearing portions 16 that are fixed to each other, a horizontal rotation support shaft 17 that is rotatably inserted in these bearing portions 16, and a plate-shaped square wheel that is fixed to each end portion of the rotation support shaft 17 and has a lower portion grounded. It consists of 18. When the supported portions 7a and 7b are pulled by the tractor 6 and move forward, the radius of the ground contact point of the square wheels 18 and 18 discontinuously changes in size, so that the processing unit 8 supported by the square wheels 18 and 18 is achieved. Is given vertical vibration.

The discharging means 10 is disposed between the upper-side V-shaped pulling member 19 extending upward from the last lateral bone member 11a2 and the upper front end of the mast frame 1a and directly above the pulling member 19, and the proximal end. A hydraulic telescopic cylinder device 22 rotatably coupled to the upper front end of the mast frame 1a via an arm portion 20 fixed to the left and right and left shaft members 21, an output end of the front end, and a pulling member 19; It consists of a connecting cable 23 that joins together. When the hydraulic telescopic cylinder device 22 is extended by the hydraulic pressure supplied from the tractor 6 with the support wheels 4 and 4 of the turf cutting device 201 in contact with the ground, the rear portion of the processing unit 8 moves around the fulcrum shafts 14 and 14. The weight is lowered, and the left and right square wheels 18, 18 are in a state where the lower portions are grounded. On the contrary, when the hydraulic telescopic cylinder device 22 is shortened by the hydraulic pressure supplied from the tractor 6, the rear portion of the processing unit 8 is pulled up around the fulcrum shafts 14, 14, and gradually becomes a forward downward inclined posture. The degree of inclination is increased according to the shortening operation amount of the telescopic cylinder device 22. When the degree of inclination increases, the clot and turf pieces present in the processing unit 8 slide forward on the vertical line member 12 of the lower surface 8b1 and are dropped onto the ground through the insertion port 8a. Reference numeral 24 denotes a receiving member that supports the middle of the length of the hydraulic telescopic cylinder device 22.

The lawn seed harvester 200 is pulled by the tractor 6 so as to be movable up and down via the link mechanism 6a as in the case of the lawn seed harvester 100 of the first embodiment. Accordingly, the grass cutting device 201 is supported by the support wheels 4 and 4 and moves forward on the ground. In this process, the rotary support shaft 17 and the cutting blade body 3 are rotationally driven, and the lawn floor soil upper layer b2 grown in the field is cut in the same manner as described above, and the cut floor soil and included therein The turf pieces are repelled obliquely rearward and upward from the opening on the rear surface of the cover 5 by the cutting blade 3.

On the other hand, since the collision device 202 is coupled to the turf cutting device 201 via the supported members 7a and 7b, the collision device 202 is moved forward following the turf cutting device 201. Since the processing unit 8 is coupled to the supported members 7a and 7b so as to be swingable and displaceable about the fulcrum shafts 14 and 14, the support wheels 4 and 4 are grounded by the weight of the processing unit 8 and the like. Due to the forward movement, it receives a rotational force from the soil and rotates to apply vibration to the processing unit 8.
In the processing area which is the inside of the processing unit 8, the grass pieces spilled from the turf cutting device 201 fly through the insertion port 8 a, and once collide with the lower surface portion 8 b 1, and then the posture is changed and the vertical line member It passes through the long hole that is the gap between 12 and falls to the outside of the wall surface portion 8b.

The grass pieces larger than the floor soil once collide with the lower surface portion 8b1 to reduce the speed, but the floor soil with a small grain does not substantially collide with the lower surface portion 8b1, and thus continues to fly without decreasing the speed. Moreover, the floor soil adhering to the turf pieces is peeled by the reaction of the turf pieces colliding with the lower surface portion 8b1. Due to the difference in flight speed caused by this collision, the floor soil component falls on the ground earlier than the grass pieces. Therefore, on the floor soil cut by the cutting blade 3 after passing through the turf seedling harvesting machine 200, the turf pieces are stacked on the upper layer.

The grass pieces collide with the vertical line member 12 and do not scatter from flying objects that have come to the upper surface portion 8d integrated with the left and right side surface portions 8b2, 8b3 and the rear surface portion 8c.
If the processing by the processing unit 8 is continued, floor soil and turf pieces that do not pass through the through holes of the wall surface portion 8b remain in the processing unit 8, but before the amount becomes excessive. By operating the hydraulic drive unit of the tractor 6, the hydraulic telescopic cylinder device 22 of the discharge means 10 is shortened and the rear part of the processing unit 8 is temporarily pulled up. As a result, the residue in the processing unit 8 slides forward on the vertical line member 12 of the lower surface 8b1 and is discharged onto the ground. As long as such discharge is performed, the amount thereof is excessive. There is no. The other points are the same as in the first embodiment.
In the second embodiment, the long hole provided by the vertical line member 12 of the lower surface portion 8b1 does not need to have a length over the entire length of the lower surface portion 8b1, and is divided as necessary. But it doesn't matter.

DESCRIPTION OF SYMBOLS 1 Main body frame 2 Rotating shaft 3 Cutting blade body 3a Vertical blade part 3b Horizontal blade part 5 Cover 6 Tractor (vehicle)
7a Supported portion 7b Supported portion 8 Processing portion 8a Input port 8b Wall surface portion 9 Vibration imparting means 10 Discharge means 12 Vertical line member 100 Turf seedling harvester 200 Turf seedling harvester 201 Turf earth cutting device 202 Colliding device

Claims (5)

A body frame that moves on the ground,
A rotating shaft supported by the main body frame and inclined with respect to the moving direction horizontally with respect to the ground;
A large number of rod-shaped vertical blade portions extending in the radial direction at intervals in the axial direction from the peripheral surface of the rotating shaft;
A turf seedling harvester having a plurality of bar-shaped horizontal blades that extend horizontally from the respective front ends of the vertical blades and move above the surface of the turf rhizomes that grow on the ground. .
The turf seedling harvester according to claim 1, wherein the horizontal blade part moves so as to cut in a vertical direction up to a depth of about 5 mm so that the surface part does not reach the rhizome of the turf.
The turf seedling harvesting machine according to claim 1 or 2, further comprising a cover that covers an upper part of each movement locus of the horizontal blade part.
The turf seedling harvesting machine according to claim 1, wherein the vertical blade portion or the horizontal blade portion is disposed at a position where the soil and turf cut pieces of the ground surface are repelled upward after being cut, and the cut pieces of the turf pass through. A turf seedling harvester comprising a collision device provided with a plurality of narrow holes having a small size.
The turf seedling harvester according to claim 4, wherein the elongated hole is formed by a plurality of vertical line members along the moving direction.