JP2012005375A - Planting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a planting machine capable of planting a seed bulb in an agricultural field with a proper posture.SOLUTION: The planting machine 1 includes a traveling unit 14 and a planting unit 17 arranged above the traveling unit 14 and planting a seed bulb G, and plants the seed bulb G for each planting interval P (prescribed interval) in a traveling direction while traveling. The planting unit 17 includes: a holder opening 2 (holder) for holding the seed bulb G; and a pusher 4 including a guide pipe 71 (a part of a guide member) for moving the seed bulb G to an agricultural field while holding the seed bulb G held in the holder opening 2 and a planting rod 72 equipped in the guide pipe 71 and planting the seed bulb G while pushing out the seed bulb G held by the guide member to the agricultural field. A holding body 73 holding the seed bulb G is provided at a part of the guide member in contact with the seed bulb G. The holding body 73 is tubular, and its inner peripheral shape is formed into a polygonal shape.

Description

  The present invention relates to a planting machine, and more particularly to a technique of a planting machine for planting a seed ball in a field.

Conventionally, seed balls such as garlic are planted so that the seed ball buds are on the top and the seed ball roots are on the bottom. Inappropriate planting led to a decrease in yield and grade due to poor germination. Therefore, in order to harvest high-quality crops, we had to manually plant seed balls.
However, when seed balls are cultivated as commercial crops, a large burden is imposed on the workers by manual work due to expansion of the cropping area. For this reason, a number of planting machines for planting seed balls in the field have been proposed.

  For example, the planting machine shown in Patent Document 1 is accommodated in a holder that temporarily accommodates a crop (seed ball) before planting, a vertical mechanism that circulates the holder between the accommodation position and the planting position, and the holder. And a vertical movement mechanism for moving the extruded vertical part up and down. This planting machine inserts the extrusion ridge part from the upper end of the holder that has moved to the planting position, and pushes the crop accommodated in the holder downward by the extrusion ridge part, thereby planting the crop in the field. It is like that.

JP 2009-213359 A

  However, since the holder and the extrusion ridge part in the planting machine shown in Patent Document 1 were not configured in consideration of the shape of the seed ball and the planting posture, the placement of the seed ball on the extrusion ridge part was poor, and the In some cases, the seed balls that were pushed out could not be planted in a proper posture.

  Then, an object of this invention is to provide the planting machine which can plant a seed ball with a proper attitude | position in a farm field.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, in Claim 1, it has a traveling part and the planting part which is arrange | positioned above the said traveling part and plantes a seed ball, and plantes a seed ball for every predetermined interval in a driving | running | working direction while driving | running | working. In the planting machine, the planting unit includes a holding unit that holds a seed ball, a cylindrical guide member that moves the seed ball while holding the seed ball to the field, and the guide member And an extruding means having a planting rod for planting the seed ball held by the guide member while pushing the seed ball to the field, and contacting the holding body holding the seed ball with the seed ball of the guide member The holding body is formed in a cylindrical shape, and its inner peripheral cross-sectional shape is formed in a polygon.

  According to a second aspect of the present invention, the holding body is made of a soft material.

  According to a third aspect of the present invention, the holding means includes a holding plate in which an insertion hole is formed in the center and a cut is formed from the insertion hole in the direction of the apex of the polygon that matches the holding body, and in the center than the seed ball. A plurality of aperture plates in which large apertures are formed are formed by alternately overlapping a plurality of aperture plates with the center aligned, and the insertion holes of the holding plate arranged at the center in the vertical direction are held on both the upper and lower sides. It is configured larger than the insertion hole of the plate.

  According to a fourth aspect of the present invention, the insertion hole of the holding plate of the intermediate layer arranged between the holding plates arranged on both the upper and lower sides is formed such that the opening area is larger toward the lower side.

  As effects of the present invention, the following effects can be obtained.

  According to the first aspect, when the seed ball is planted in the field, the holding body comes into contact with the outer peripheral surface of the seed ball at a plurality of locations and holds the seed ball in an appropriate posture. Therefore, the seed ball held on the holding body is pushed out by the planting rod, so that it can be planted in the field with the proper posture as it is.

  In claim 2, when the holding body holds the seed ball, the holding body is deformed according to the outer shape of the seed ball, and the contact area of the holding body with the seed ball can be increased. It becomes easy to hold the holding body in a proper posture. Therefore, the seed ball can be planted in the field with an appropriate posture. Moreover, the holding body does not flexibly contact the outer peripheral surface of the seed ball and damage it.

In Claim 3, since the vertex of a holding body and the cut | interruption of a holding plate correspond, a seed ball can be hold | maintained reliably with a proper attitude | position. That is, the seed ball has a substantially triangular shape in plan view, and the apex of the seed ball is held in accordance with the cut of the holding plate, and when held by the guide member of the pushing means and pushed out, the held state remains unchanged in the holding body. Since it is held, the direction of seed buds is not shifted or dropped during extrusion, and can be reliably held and planted.
In addition, since the insertion hole of the holding plate in the upper and lower intermediate layer is formed larger than the insertion holes on both the upper and lower sides, an excessive frictional force due to the seed ball and the holding plate is generated rather than forming an insertion hole of the same size. The seed ball is moderately held by the inner surface of the insertion hole of the holding plate. Therefore, when the operator inserts the seed ball into the holding means, a large friction does not occur, it is easy to insert and it is not damaged, the seed ball can be held in an appropriate posture by the holding means, and the seed ball is properly set by the pushing means. It can be planted in the field with a simple posture.

According to the fourth aspect of the present invention, since the insertion hole of the holding plate of the intermediate layer has a larger opening area on the lower side (discharge side) than on the upper side (insertion side), the internal space goes downward. It is formed so as to increase. Therefore, when inserting the seed ball, the operator feels new resistance again at the lowermost holding plate by eliminating or reducing new resistance by the holding plate before the lowermost holding plate. Therefore, the operator can easily grasp the insertion position of the seed ball in the holding means.
The seed balls can be easily inserted into the holding means in an appropriate posture while being held with an appropriate force mainly by the holding plates arranged on both the upper and lower sides. Can be attached.

The rear perspective view which shows the structure of the planting machine which concerns on one Embodiment of this invention. The side view which similarly shows the whole structure of a planting machine. The figure which shows the structure of the 2nd auxiliary supply box which concerns on another embodiment of this invention. (A) The side view which shows the whole structure of a 2nd auxiliary | assistant supply box. (B) The side view which shows the structure around a partition part. The rear view which shows the structure of the 2nd auxiliary supply box which concerns on another embodiment of this invention. The side view which shows the power transmission mechanism in the planting part which concerns on one Embodiment of this invention. Similarly a partial front view. The side view which shows the structure of a part of rotation support part and a planting apparatus similarly. The perspective view which shows the structure of a holding hole means. The perspective view which shows the structure of a seed ball holder. The figure which shows the state which inserts a seed ball in a seed ball holder. (A) The partial end elevation which shows the state of the seed ball and seed ball holder just before inserting. (B) The partial end elevation which shows the state of the seed ball holder which inserted the seed ball to the 1st holding plate. The figure which shows the state which inserts a seed ball in a seed ball holder. (A) The partial end elevation which shows the state which inserted the seed ball to the 2nd holding plate. (B) The partial end elevation which shows the state which inserted and hold | maintained the seed ball in the seed ball holder. The side view which shows the planting extrusion part in a planting part. The front view which similarly shows the structure of a planting apparatus. The side view which shows the aspect of a drive part. (A) The figure of the state in a standby position. (B) The figure of the state in the middle of the transfer from a standby position to a planting position. (C) The figure of the state in a planting position. (D) The figure of the state in the middle of returning from a planting position to a standby position. The front view which shows the length adjustment mechanism of a crank drive part. (A) The figure of the state with the longest length of a crank drive part. (B) The figure of the state where the length of a crank drive part is intermediate | middle. (C) The figure of the state with the shortest length of a crank drive part. The side view center side fragmentary sectional view which shows the structure of a planting extrusion body. The side view center cross-sectional view which shows the lower part of a planting extrusion part. (A) The figure which shows a seed ball holding state. (B) The figure which shows the state which a planting rod presses a seed ball. The figure which shows the holding | maintenance state of a seed ball. (A) The bottom view which shows the planting extrusion body in the arrow X direction of FIG. (B) The partial top view which shows the state with which the seed ball was hold | maintained at the seed ball holder. The side view which shows the structure of the left engaging part. The top view which shows the structure of the left engaging part. (A) The partial top view which shows the structure of the left upper engaging body. (B) The partial top view which shows the structure of the left lower engaging body. The front view which shows the structure of the left engaging part. The partial side view which shows the state of contact | abutting with a holding hole means and a guide part. (A) The figure in case a support shaft is located in the front end of a guide plate opening part. (B) The figure in case a support shaft is located in the middle part of a guide plate opening part. (C) The figure in case a support shaft is located in the rear end of a guide plate opening part. The partial sectional side view of the state which the upper left engaging member descend | falls and contact | abutted with the latching member. The partial sectional side view in the state where the left upper engagement member was located in the lowest. The schematic sectional side view which shows the state in which the seed ball holder hold | maintained the seed ball. The schematic sectional side view which shows the state in which a planting extrudate receives a seed ball from a seed ball holder. The fragmentary sectional side view which shows the state which the upper side engaging member of the left side contact | abutted with the lower engaging member from the downward direction. The partial sectional side view which shows the state which the lower engaging member of the left side latched the rear-end part of the upper engaging member.

Next, embodiments of the invention will be described.
In addition, although it is assumed that the planting is performed in a state where the multi-sheet is coated on the ridge, the present invention is not particularly limited to this, and the planting may be performed in a substantially flat field that does not cover the multi-sheet. Good.

Below, with reference to FIGS. 1-5, the whole structure of the planting machine 1 which concerns on one Embodiment of this invention is demonstrated.
In the description, the direction of the arrow A shown in the figure is defined as the front direction of the planting machine 1, and the front-rear and left-right directions are defined.

  The planting machine 1 is a planting machine used for planting a seed ball G on a cocoon covered with a multi-sheet 10. The planting machine 1 mainly includes a body frame 12, a drive unit 13, a traveling unit 14, a driving operation unit 15, a power transmission mechanism, a planting unit 17, a seed ball supply unit 19, and the like.

  The body frame 12 is a structure that forms the skeleton of the planting machine 1, and includes a plurality of left and right support frames that extend in the vertical direction and a plurality of left and right support frames that extend horizontally in the support frame. The front and rear frames and the left and right frames that are horizontally provided between the front and rear frames are connected and fixed. A step 12 a for an operator to get on and off the planting machine 1 is formed at the front and rear center of the machine body frame 12. A power transmission mechanism, a lifting link mechanism 11 for raising and lowering the planting part 17 and maintaining a distance between the planting surface (field) and the planting part 17 at an appropriate height are arranged at the left and right center of the step 12a. The The elevating link mechanism 11 is covered with a protective case 155 disposed above in the front-rear direction.

The planting frame 18 is a structure that is a part of the planting part 17 and forms the skeleton of the planting part 17. The planting frame 18 is disposed in front of the body frame 12 from the rear part of the body frame 12 via the lifting link mechanism 11. The planting frame 18 mainly includes a main planting frame 181, a side planting frame 182, and a horizontal planting frame 183.
As shown in FIGS. 1 to 5, the main planting frame 181 is formed by bending a bar such as a pipe into a polygon whose rear lower part is opened in a side view, and is slightly shorter than the left and right body widths. And are arranged in a pair of left and right. More specifically, the main planting frame 181 is formed so that one end thereof is positioned in the middle of the upper and lower sides of the rear portion of the planting unit 17. A rear inclined portion 18a is formed from the rear end of the main planting frame 181 toward the front upper side so as to become front high and low low. Furthermore, in the upper part of the planting part 17, a horizontal part 18b is formed. From the front part of the horizontal part 18b, the front upper inclined part 18c is formed so that the front upper part becomes the front low and the rear high. The front lower inclined portion 18d is formed so as to become lower in front and lower from the lower portion of the front upper inclined portion 18c toward the center of the planting portion 17. The other end of the main planting frame 181 is formed so as to be positioned at the front lower part of the planting unit 17.

Side planting frames 182 are arranged on the left and right main planting frames 181 and 181 in the vertical direction and the front-rear direction. Horizontally planted frames 183 and 183 are provided between the left and right main planted frames 181 and 181.
By configuring in this way, a space is formed inside the planting frame 18, and various planting devices described later can be arranged in the space. Furthermore, the left and right outer sides of the main planting frames 181 and 181 are covered with a cover 171. An endless cover 172 is arranged on both inner sides of the main planting frames 181 and 181 so as to protrude inward.

  The drive unit 13 includes an engine 131 that is a power source and a generator (not shown). The drive unit 13 transmits power to the traveling unit 14 and the planting unit 17 to drive each unit. The drive unit 13 is mounted on the rear part of the body frame 12 and is arranged so as to balance the weight in the front-rear direction with the planting part 17 connected to the front part of the body frame 12. Above the driving unit 13, a mounting unit 154 for placing a basket 153 in which the seed ball G is stored is disposed.

  The traveling unit 14 includes a pair of left and right crawlers 140 and 140, and the power from the driving unit 13 is transmitted via the mission case 141, so that the planting machine 1 can travel.

  The driving operation unit 15 is disposed in the front and rear center of the body frame 12, and the traveling unit 14 and the planting unit 17 are operated. The driving operation unit 15 includes an operation column 152 on which a plurality of operation levers and the like for operating the seats 151 and 151 on which an operator is seated, the traveling unit 14 and the planting unit 17 are arranged.

  The seat 151 is juxtaposed on the left and right on the body frame 12 in front of the engine 131. The seats 151 and 151 are arranged so that the surface to be seated becomes front and rear and rear height so that the operator can easily insert the seed ball into a seed ball holder 21 (see FIG. 8) described later. Specifically, as shown in FIG. 2, the front lower surface of the seat portion (seat surface) of the seat 151 is supported by a pivot shaft whose axis is the left-right direction, and the rear lower surface is in contact with the upper end of the support bar 151a. Is done. The support rod 151 a has a thread on its side surface and is screwed up and down with respect to the body frame 12. Thus, by rotating the support bar 151a, the height of the upper end of the support bar 151a can be adjusted, and the inclination of the seating surface of the seat 151 can be adjusted. That is, it is possible to adjust the inclination angle of the seat portion surface of the seat 151 according to the physique of the worker and the ease of work by adjusting the forward leaning posture of the worker who is seated. However, instead of the support bar 151a, an engaging member whose engaging height can be changed or a stopper having a different height can be arranged, and the height of the rear lower surface can be changed. It is not limited.

  The operation column 152 is arranged in the vicinity of the periphery of the seat 151. In this embodiment, the operation column 152 is arranged diagonally to the right of the seat 151 on the right outer side of the machine body. By operating the operation lever of the operation column 152 or the like, the power is connected to and disconnected from the traveling unit 14, the speed change operation, and the power to the planting unit 17 are connected and disconnected.

  The operation column 152 is formed in a box shape. On the upper surface of the operation column 152, a work clutch lever, a traveling clutch lever, a side clutch lever, a planting height automatic adjustment switch, and a traveling direction automatic adjustment switch are arranged. On the rear surface of the operation column 152, an engine stop switch, a planting lift switch, a planting part drive switch, and the like are arranged. The traveling speed change lever that changes the traveling speed of the planting machine 1 is disposed on the lower right side surface of the right seat 151 in the present embodiment.

  The seed ball supply unit 19 shown in FIGS. 1 and 2 is for temporarily storing seed balls to be supplied to the holding hole means 2 described later. The seed ball supply unit 19 is mainly configured by a supply box 191 and an auxiliary supply box 192.

The supply box 191 is a container in which the seed ball G to be inserted into the holding hole means 2 of the planting part 17 is temporarily stored before insertion.
The replenishment box 191 is a container that is formed in a substantially bowl shape, slightly shorter than the lateral width of the planting part 17, the upper part is opened, and both the left and right ends are closed. The left and right side portions of the supply box 191 are fixed to the rear inner side of the rear inclined portion 18a of the main planting frame 181 and the rear end of the endless cover 172.

The auxiliary supply box 192 is for supplying a new seed ball G into the supply box 191. The auxiliary supply boxes 192 and 192 are arranged on the upper surfaces of the left and right covers 171 and the endless cover 172 so as to form a pair of left and right. The auxiliary supply box 192 is mainly configured by a storage portion 193, a guide portion 194, and a partition plate 195.
The accommodating part 193 is a substantially box-shaped container whose upper part is opened, and is for storing the seed ball G. The accommodating portion 193 is fixed to the upper surfaces of the cover-171 and the endless body cover 172 via an attachment member (not shown) or the like. The holding hole means 2 side of the accommodating portion 193 is disposed so as to be at substantially the same position in the left-right direction. The outer side of the housing part 193 is arranged so as to protrude from the outer surface of the cover 171. The rear part of the accommodating part 193 is arranged so as to protrude rearward and downward to the front and rear halfway part of the rear inclined part 18a so as to follow the upper surfaces of the cover-171, the rear inclined part 18a of the main planting frame 181 and the endless cover 172. Is done. An opening is formed on the rear side of the protruding portion on the holding hole means 2 side.

  The guide portion 194 is a substantially tunnel-shaped member, and is a passage for supplying the seed ball G in the housing portion 193 to the supply box 191. The guide portion 194 is fixed to the upper surfaces of the endless cover 172 and the rear inclined portion 18a behind the housing portion 193. One end (upper end) of the guide portion 194 is connected to the opening of the housing portion 193. The other end (lower end) of the guide portion 194 is disposed above both left and right end portions of the supply box 191. The other end of the guide portion 194 has an opening on the supply box 191 side.

  The partition plate 195 is for preventing clogging of the seed balls G in the passage of the guide portion 194. The partition plate 195 is configured by a plate-like member that is substantially the same as the left-right width of the guide portion 194. The partition plate 195 is arranged on the upper surface of the guide portion 194 such that the passage cross section in the guide portion 194 increases from the upstream side to the downstream side in the seed ball G supply direction. Further, the partition plate 195 is formed so that its upper end is bent toward the upper surface of the guide portion 194 and further attached to the upper surface.

  By configuring in this way, the passage cross section on the downstream side is larger than the upstream side of the guide portion 194, and the seed balls G are easily supplied to the supply box 191.

In the above configuration, the operator takes out the seed ball G in the supply box 191 by hand and inserts it into the holding hole means 2. In addition, since the supply box 191 is configured to be connected to the left and right, when the seed ball G disappears in front of the left and right workers, the seed ball G in the supply box 191 on the left and right other side can be easily moved to one side. The seed ball G can be replenished.
Further, when the seed ball G at the end of the supply box 191 decreases, the seed ball G is supplied into the supply box 191 by the dead weight of the seed ball G from the accommodating portion 193 of the auxiliary supply box 192 through the guide portion 194. The Therefore, the operator can reduce the stop of the planting work due to the shortage of the seed balls G in the supply box 191 and can efficiently perform the planting work.

  If the seed balls G in the supply box 191 and the auxiliary supply box 192 disappear, the seed balls G can be supplied to the supply box 191 and the auxiliary supply box 192 from the basket 153 behind the seat 151.

  Moreover, it may replace with the auxiliary supply box 192 of this embodiment, and may install the 2nd auxiliary supply box 392 as another embodiment. As shown in FIGS. 3 and 4, the second auxiliary supply box 392 is mainly configured by a storage portion 393, a guide portion 394, and a partition portion 395. The storage unit 393 and the guide unit 394 have the same basic structure as the storage unit 193 of the auxiliary supply box 192. The accommodating part 393 is fixed so that bolts 393a and 393a for supporting a 395 partitioning part 395 described later protrude rearward and downward on the lower rear slope at a predetermined interval in the vertical direction. The guide portion 394 has an insertion hole 394a formed on the outer surface of the body in the vicinity of the attachment portion with the accommodating portion 393.

  The partition portion 395 has a shutter structure. Specifically, the partition member 395 is formed by bending a plate-like member so as to have a partition plate 395a and a handle plate 395b perpendicular to the partition plate 395a. In the partition plate 395a, elongated holes 395c and 395c having a longitudinal direction in the left-right direction are formed at an equal vertical distance to the bolt 393a. One end of the partition plate 395 a (the end in the body) is inserted into the insertion hole 394 a of the guide portion 394. The long holes 395c and 395c are fixed so that the partition plate 395a extends along the lower rear slope of the housing portion 393 by being fitted to the 393a and 393a formed in the housing portion 393 and fastened by the nuts 393b and 393b. It is possible.

  Accordingly, the operator moves the partition plate 395a in the left-right direction while sliding the bolts 393a and 393a into the long holes 395c and 395c while holding the handle plate 395b in a state where the nuts 393b and 393b are loosened. Then, the internal passage cross section at the upper part of the guide portion 394 is adjusted. By fastening the nuts 393b and 393b by the operator, the partition plate 395a can be fixed to the rear side surface of the accommodating portion 393 at a desired position.

  By configuring in this way, the passage cross section on the downstream side is larger than the upstream side of the guide portion 394, and the seed balls G are easily supplied to the supply box 191.

  As shown in FIGS. 1, 2, and 5, the power transmission mechanism transmits the driving force of the engine 131 to the traveling unit 14 and the planting unit 17. In this embodiment, the power transmission mechanism includes a belt and a pulley, a chain and a sprocket, a transmission shaft, a gear, a transmission case 141, and the like, but other components may be used.

  The driving force from the engine 131 is transmitted to the transmission case 141 by pulleys, belts, and transmission shafts that are power transmission mechanisms. The power transmitted to the mission case 141 is shifted in the mission case 141 and then transmitted to the traveling wheels 268 and 268 via the chain and sprocket, so that the crawlers 140 and 140 of the traveling unit 14 are driven to travel. Is done.

Next, transmission of the driving force to the planting part 17 will be described with reference to FIGS. 1 and 5 to 7.
The driving force from the engine 131 is transferred through a power transmission mechanism (not shown) in front of the engine 131 such as a transmission shaft, a gear, a pulley, and a belt, and the planting input shaft 365 (FIG. 5) is changed while changing speed and power transmission direction. ).

  The planting input shaft 365 is rotatably supported at the front portion of the driving operation unit 15 and on the rear portion of the planting frame 18 on the left side of the planting unit 17.

A driving sprocket 40 of the first planting transmission mechanism 16a that transmits power to the pushing means 4 (see FIG. 12) is fixedly installed in the middle of the left and right of the planting input shaft 365.
On the other hand, the drive sprocket 30 of the second planting transmission mechanism 16b that transmits power to the endless body 3 is fixed to the left end of the planting input shaft 365.

  That is, the power of the planting input shaft 365 is simultaneously transmitted to the first planting transmission mechanism 16a and the second planting transmission mechanism 16b arranged in front of the planting input shaft 365.

As shown in FIGS. 5 and 6, the first planting transmission mechanism 16 a is mainly composed of a drive sprocket 40, a driven sprocket 41, a tension sprocket 42, an extrusion drive sprocket 43, a transmission chain 44, and an extrusion drive shaft 45.
A drive sprocket 40 is fixedly provided in the middle of the left and right of the planting input shaft 365. An extrusion drive shaft 45 that is slightly shorter than the right and left width of the planting unit 17 is disposed in front of and above the planting input shaft 365 (upper part of the planting unit 17). The extrusion drive shaft 45 is rotatably supported on the left and right of the planting frame 18. An extrusion drive sprocket 43 is fixed to the left end of the extrusion drive shaft 45. A driven sprocket 41 is arranged at the front upper side of the drive sprocket 40, and a tension sprocket 42 is arranged at the rear lower side of the push drive sprocket 43.

  An endless transmission chain 44 is wound around the drive sprocket 40, the driven sprocket 41, the tension sprocket 42 and the extrusion drive sprocket 43. However, the driven sprocket 41 is engaged with the outer periphery of the transmission chain 44, and the tension sprocket 42 is engaged with the inner periphery of the transmission chain 44. Therefore, the transmission chain 44 can maintain an appropriate tension and can prevent the transmission chain 44 from dripping between the push drive sprocket 43 and the drive sprocket 40.

  Therefore, power is transmitted from the planting input shaft 365 to the push drive shaft 45 via the drive sprocket 40, the transmission chain 44 and the push drive sprocket 43. A clutch, which will be described later, is disposed between the extrusion drive sprocket 43 and the extrusion drive shaft 45, and transmission of power is restricted by the action of the clutch. The power transmitted to the push drive shaft 45 operates the push means 4 (see FIG. 13) via the crank drive unit 5.

The second planting transmission mechanism 16b is mainly composed of a drive sprocket 30, a rotary shaft 31, a driven sprocket 31a, a driven sprocket 31b, a tension sprocket 34, an endless drive sprocket 32, an endless drive shaft 33, and transmission chains 30a and 32a. The
A drive sprocket 30 is fixed to the left end of the planting input shaft 365. The rotation shaft 31 is disposed in the front lower part of the planting input shaft 365 (the rear lower part of the planting unit 17). The rotating shaft 31 is rotatably supported by the left planting frame 18 at both ends thereof. A driven sprocket 31 a is fixed on the right end of the rotating shaft 31, and a driven sprocket 31 b is fixed on the left end of the rotating shaft 31.

An endless transmission chain 30a is wound around the drive sprocket 30 and the driven sprocket 31a. An endless drive shaft 33 is disposed below the driven sprocket 31a (above the planting position 17b). The endless drive shaft 33 is rotatably supported by the left and right planting frames 18.
An endless drive sprocket 32 is fixed to the left end of the endless drive shaft 33. On the endless body drive shaft 33 on the right side of the endless body drive sprocket 32, the lower end of the tension arm 34a is rotatably supported. A rotation shaft 34b is fixed to the upper end of the tension arm 34a so as to protrude leftward. A tension sprocket 34 is rotatably supported at the right end of the rotation shaft 34b. An endless transmission chain 32a is wound around the driven sprocket 31b, the endless body drive sprocket 32, and the tension sprocket 34. The tension arm 34a is urged by a spring (not shown) and can apply tension to the transmission chain 32a.

  Therefore, the power of the planting input shaft 365 is transmitted to the rotary shaft 31 via the drive sprocket 30, the transmission chain 30a, and the driven sprocket 31a. The power of the rotary shaft 31 is transmitted to the endless drive shaft 33 via the driven sprocket 31b, the transmission chain 32a, the tension sprocket 34, and the endless drive sprocket 32.

  Further, as shown in FIGS. 5 to 7, inner endless body drive sprockets 35 and 35 are fixed on the inner end of the main planting frame 181 on the endless body drive shaft 33. The left and right endless driven sprockets 36, 37, 38, and 39 are arranged so that a predetermined space is formed in a side view. An endless body 3 composed of an endless chain or the like is wound around the left and right endless body driven sprockets 36, 37, 38, and 39. Since the endless body 3 is disposed symmetrically, the left side will be mainly described below.

In addition, the planting position 17 b is a position where the seed ball G is planted on the field, and is arranged at the lowermost part of the planting unit 17.
The lower endless driven sprocket 39 and the lower end of the inner endless drive sprocket 35 behind the lower endless driven sprocket 39 are arranged side by side in the front-rear horizontal direction in a side view. Further, as the endless body 3 wound around each endless body driven sprocket 36, 37, 38, 39 rotates, the holding hole means 2 moves substantially horizontally rearward at the lower part of the planting portion 17. In addition, a guide member 174 is disposed. The guide member 174 is configured to guide a roller 29 of the holding hole means 2 described later.

  Thus, the endless body 3 is wound between the replenishment position 17a and the planting position 17b, and the holding hole means 2 is rotationally driven with the insertion direction facing the vertical direction except for the replenishment position 17a. Is done. Therefore, the inner endless body drive sprocket 35 is arranged to be pulled and driven on the rear side of the planting position 17b to rotate the endless body 3, so that the endless body 3 at the planting position 17b is planted. It becomes possible to be planted accurately in synchronism with the traveling and crank driving unit 5 without being loosened by being always pulled during the work. Then, the seed ball G of the holding hole means 2 is not greatly swung and is not shaken down, and is reliably conveyed from the replenishment position 17a to the planting position 17b.

  The endless body 3 is constituted by an endless chain or the like as described above, and is stretched inside the planting frame 18 so as to be a polygon (pentagon) in a side view. More specifically, the endless body 3 is a pair of left and right inner endless body drive sprockets 35 that are rotation support portions provided on the left and right inner sides of the planting frame 18 so as to be the top positions of the polygonal shape in side view, and each endless body. It is wound around driven sprockets 36, 37, 38, 39. Between the left and right endless bodies 3, the holding aperture means 2 is horizontally mounted in the left-right direction at predetermined intervals in the rotation direction of the endless body 3.

Then, as shown in FIGS. 2 and 5 to 7, the replenishment position 17 a is low before and after high so that the seed ball G can be easily replenished (inserted) into the holding hole means 2 in front of the driving operation unit 15. Are inclined at a predetermined angle. That is, the upper endless driven sprocket 37 is arranged at the uppermost part of the front and rear center part of the planting part 17 so that the height of the upper endless driven sprocket 37 can ensure a front view at the time of planting work. It is lower than the eye level of the person, higher than the knee, and about the height of the shoulder.
The height of the rear endless driven sprocket 36 disposed below and behind the upper endless driven sprocket 37 is about the height of the seat surface of the seat 151 that is higher than the step 12a and lower than the chest of the operator. . Thus, the endless body 3 stretched between the upper endless driven sprocket 37 and the inner endless drive sprocket 35 is disposed so as to incline from front to back and low, and the replenishment position 17a is disposed.

The replenishment position 17a is disposed in front of the seat 151 and within the reach of an operator seated on the seat 151. Specifically, the replenishment position 17a is disposed between the upper endless driven sprocket 37 and the rear endless driven sprocket 36 such that the endless body 3 is inclined at a predetermined angle from front to rear and low. An inner endless body drive sprocket 35 is disposed on the planting frame 18 so that the holding aperture means 2 moves obliquely forward and upward while maintaining this angle. That is, a plate-shaped guide member 173 having a longitudinal direction in the front-rear direction is disposed below the endless body 3 between the upper endless body driven sprocket 37 and the rear endless body driven sprocket 36. The guide member 173 is fixed to the planting frame 18 so as to be parallel to the endless body 3. The guide member 173 is guided by rollers 29 described later provided on both sides of the holding hole means 2 rolling on the upper surface thereof, and the seed ball insertion surface of the seed ball holder 21 moves forward and upward while facing the operator side. Configured to do. At this replenishment position 17a, the holding aperture means 2 are arranged in parallel in a plurality of rows (three rows in the present embodiment), and there is some allowance for the replenishment time of the seed ball G, and even if the timing of replenishment is missed It can be easily modified.
In this way, the operator can work in a posture in which the seed ball G can be easily supplied to the holding hole means 2 to be described later while sitting on the seat 151, thereby reducing fatigue and improving work efficiency.

The endless body drive sprocket 32 can change the planting interval (between stocks) P of the seed balls G by changing the diameter (number of teeth). That is, if the diameter of the endless drive sprocket 32 is large (the number of teeth is large), the planting interval P is long, and if the diameter is small (the number of teeth is small), the planting interval P is short.
The operator can select a desired planting interval P by changing the endless body drive sprocket 32. However, a stepped or continuously variable transmission mechanism may be arranged on the endless body drive sprocket 32. In that case, the stepped or continuously variable transmission mechanism can be easily operated with an operation tool such as a lever. Preferably it can be done.

Next, the planting part 17 driven by the power transmission mechanism will be described.
The planting part 17 is arrange | positioned in the front part of the planting machine 1 in order to plant the seed ball G in a farm field. The planting part 17 in the present embodiment is mainly configured by a planting frame 18 and various planting devices such as the holding hole means 2 and the pushing means 4 arranged inside the planting frame 18.

Next, the structure of each planting apparatus of the planting part 17 arrange | positioned in the planting frame 18 is demonstrated using figures.
Each planting device of the planting part 17 is mainly constituted by the holding hole opening means 2, the pushing means 4 and the like arranged on the endless body 3.

  As shown in FIGS. 1 and 7 to 12, the holding hole means 2 is a means for making a hole in the multi-sheet 10 when the seed ball G is held and the planting position 17b is reached. In the present embodiment, the holding means is the holding hole means 2 having opening means that can form an opening portion in the multi-sheet 10. However, as long as it has an opening means separately or an opening is provided in advance in the multi-sheet, any holding means having a function capable of transporting to the planting position 17b while holding the seed ball G may be used. The holding aperture means 2 is mainly composed of a case body 23, a plurality of seed ball holders 21, and an aperture body 26.

The case body 23 is a box-like structure that can be divided into upper and lower parts with the left-right direction as the longitudinal direction. On the upper and lower surfaces of the case body 23, a plurality of upper and lower opening portions 23a (a total of eight places in the present embodiment, which are four in the upper and lower portions) are provided at predetermined intervals in the left-right direction so that the seed balls G can be inserted and discharged. A pair of upper and lower sides is formed with a gap.
A seed ball holder 21 having an insertion hole for the seed ball G and holding the seed ball G is fixed to the lower side of the upper periphery 23 a of the case body 23. An opening 26 is disposed on the case body 23 below the seed ball holder 21.

  The seed ball holder 21 includes a plurality of rectangular holding plates (first holding plate 211, second holding plate 212, and third holding plate 213) and a plurality of rectangular aperture plates 214. The seed ball holder 21 is formed by alternately laminating the holding plate and the aperture plate 214 one by one with the center and direction aligned one by one. Specifically, the seed ball holder 21 includes a first holding plate 211, an aperture plate 214, a second holding plate 212, an aperture plate 214, a third holding plate 213, an aperture plate 214, and a first holding plate 211 from above. They are stacked one after another.

  The aperture plate 214 is made of an elastic plate such as urethane, and an aperture 214a having a diameter larger than that of the seed ball G and allowing the seed ball G to pass therethrough is formed at the approximate center thereof. Bolt holes 214b are opened at the four corners of the aperture plate 214, and bolts can be inserted into the bolt holes 214b.

  The holding body (the first holding plate 211, the second holding plate 212, and the third holding plate 213) is configured by an elastic plate such as rubber. The first holding plate 211 is formed with a first insertion hole 211a having a smaller diameter than the seed ball G at the approximate center thereof. In the second holding plate 212, a second insertion hole 212a having a smaller diameter than the seed ball G and larger than the first insertion hole 211a of the first holding plate 211 is formed at the approximate center thereof. The third holding plate 213 has a third insertion hole that is substantially the same as the opening portion 214a of the opening plate 214 or smaller in diameter than the opening portion 214a and larger in diameter than the second insertion hole 212a of the second holding plate 212. 213a is formed. That is, the diameters of the respective insertion holes 211a, 212a, and 213a increase in the order of the first insertion hole 211a, the second insertion hole 212a, and the third insertion hole 213a. Therefore, the holding body has a larger opening in the holding plate that is an intermediate layer than the upper and lower outermost layers formed by the first holding plates 211 and 211 disposed on both the upper and lower sides, and the second holding plate 212 The third insertion hole 213a of the lower third holding plate 213 is formed to have a larger opening area than the second insertion hole 212a.

  A plurality of cuts 211b, 212b, and 213b are radially formed in the holding bodies 211, 212, and 213 radially outward from the insertion holes 211a, 212a, and 213a. Specifically, the cut lines 211b, 212b, and 213b are formed in the apex direction of the holding body 73 formed in a polygon, which will be described later. Between the cuts 211b, 212b, and 213b and the cuts 211b, 212b, and 213b, a holding unit (first holding unit 211d, second holding unit 212d, and third holding unit 213d) is formed.

  These slits 211b, 212b, 213b,... Are formed at six equal angles in the circumferential direction and in the radial direction with respect to the respective insertion holes 211a, 212a, 213a. All of the holding plates 211, 212, and 213 are arranged so that the numbers and directions of the respective cut lines 211b, 212b, and 213b coincide. Further, the holding plates 211, 212, 213, 211 have bolt holes 211c, 212c, 213c,... At positions where the holding plates 211, 212, 213, 211 can coincide with the bolt holes 214b in a plan view while being bonded to the aperture plate 214. It is formed.

By configuring in this way, as shown in FIG. 10A, the seed ball G is first inserted into the first insertion hole 211a, while pushing down the first holding portion 211d in the vicinity of the first insertion hole 211a. As shown in FIG. 10B, the first holding portion 211d guides the second holding portion 212d. Further, as shown in FIG. 11A, the seed ball G includes the second holding portion 212d and the second insertion hole 212a, and the first holding portion 211d is the first holding hole 211a and the second insertion hole 212a in the vicinity of the second insertion hole 212a. While pushing down the one holding portion 211d and the second holding portion 212d, it is guided to the holding plate 213 as shown in FIG. 11B, and the outermost part of the seed ball G comes into contact with the third holding portion 213d. Thus, the posture is stabilized, and the lower part of the seed ball G comes into contact with the upper surface of the first holding part 211d arranged at the bottom.
Here, since the third holding portion 213d is only in contact with the seed ball G, an operator who inserts the seed ball G into the seed ball holder 21 can easily insert the seed ball G to such an extent that he feels a small resistance. By doing so, it can be held or placed on the lowermost first holding portion 211d. By holding the seed ball G by contact with the holding portions 211d, 212d, and 213d, the operator can confirm with an insertion feeling that the seed ball G has reached the holding space where the seed ball G is held in a stable state.

By increasing the size of the insertion hole between the upper and lower sides of the seed ball holder 21, it is possible to facilitate insertion (reducing resistance) and to secure an appropriate holding force.
It becomes easy to grasp the position of the seed ball G, and the seed ball G can be uniformly inserted into the seed ball holder. Furthermore, since the seed ball G is inserted below the seed ball holder 21, there is no holding part that contacts the lower end of the seed ball G, and the operator further inserts the seed ball holder 21 downward. Then, it is placed on the first holding portion 211d arranged at the bottom. That is, the operator can confirm with a sense whether or not the seed ball has been inserted at a predetermined position. Therefore, the seed ball G can be planted in the field with an appropriate posture.

The holding hole opening means 2
Insertion holes 211a, 212a, and 213a are formed in the center, and holding plates 211, 212, and 213b are formed from the insertion holes 211a, 212a, and 213a in the direction of the apex of the polygon that coincides with the holding body 73. 213 and the aperture plate 214 in which the aperture portion 214a larger than the seed ball G is formed in the center are formed by alternately overlapping a plurality of aperture plates 214 with the center being aligned, and arranged in the center in the vertical direction The insertion holes 212a and 213a of the plates 212 and 213 are configured to be larger than the insertion holes 211a of the holding plate 211 disposed on both upper and lower sides.

Since the apex of the holding body 73 and the cuts 211b, 212b, and 213b of the holding plates 211, 212, and 213 coincide with each other, the seed ball G can be held in an appropriate posture and reliably planted. That is, the seed ball G has a substantially triangular shape in plan view, and the apex of the seed ball G is held according to the cuts 211b, 212b, and 213b of the holding plate 211, and is inherited and pushed out by the guide member (holding body 73) of the pushing means 4. At this time, since the held state is held by the holding body 73 without changing, the direction of the sprouts of the seed ball G (budding location G1) is not shifted or dropped during the extrusion, and is securely held. Can be planted.
Further, the insertion holes 212a and 213a of the holding plates 212 and 213 in the upper and lower intermediate layers are formed larger than the insertion holes 211a and 211a on both upper and lower sides, so that the seed ball G is formed rather than forming the same size insertion holes. And the excessive frictional force caused by the holding plates 211, 212, and 213 are reduced, and the seed balls G are appropriately held by the inner surfaces of the insertion holes 211a, 212a, and 213a of the holding plates 211, 212, and 213. Therefore, when the operator inserts the seed ball G into the holding hole means 2, there is no significant friction, and the seed ball G can be held in the holding hole means 2 in an appropriate posture without being easily damaged and damaged. The seed ball G can be planted in a proper posture by the pushing means 4 in the field.

  The insertion holes 212a and 213a of the intermediate-layer holding plates 212 and 213 arranged between the holding plates 211 and 211 arranged on both the upper and lower sides are formed larger toward the lower side.

  Since the insertion holes 212a and 213a of the holding plates 212 and 213 of the intermediate layer have a larger opening area on the lower side (discharge side) than on the upper side (insertion side), the internal space goes downward. It is formed so as to increase. For this reason, when the operator inserts the seed ball G, the new resistance by the holding plates 212 and 213 is eliminated or reduced before the lowermost holding plate, so that the newest again by the lower holding plate 211. I feel a lot of resistance. Therefore, the operator can easily grasp the insertion position of the seed ball G in the holding hole means 2. The seed ball G can be easily inserted into the holding hole means 2 in an appropriate posture while being held with an appropriate force by the holding plates 211 and 211 arranged mainly on the upper and lower sides. Can be planted in an appropriate position in the field.

  As shown in FIG. 2 and FIGS. 7 to 12, the opening 26 is arranged such that four plate members are bent in an inverted L shape when viewed from the side, and one side can be freely rotated by the opening / closing drive unit 24. The The other side protrudes downward, and is formed in a pointed shape so that the tip of the other side can be easily pierced into the multi-sheet 10 to form an opening.

The opening / closing drive unit 24 for driving the opening 26 to open and close is constituted by a link mechanism, and is disposed between the seed ball holder 21 and the opening 26. A drive arm 25 is rotatably connected to both sides of the opening / closing drive unit 24. The outer end of the drive arm 25 is configured to open the opening 26 by being pushed inward.
A cam body (not shown) is provided in the front-rear direction on the drive arm 25 side inside the lower portion of the planting frame 18. The cam body is formed so as to protrude inward so that the outer end of the drive arm 25 abuts, and the opening body 26 is opened in the multi-seat 10 by the outer end of the drive arm 25 abutting and rotating. A hole is formed.

  In other words, when the outer end of the drive arm 25 is in contact with the cam body, the tip of the aperture 26 is positioned around the opening 23a, and the aperture 26 is in an open state. When the drive arm 25 is not in contact with the cam body and the drive arm 25 protrudes outward from the case body 23, the tip of the opening 26 is located at the center of the opening 23a. The body 26 is in a closed state.

  Therefore, the tips of the four apertures 26 pierced in the multi-sheet 10 are rotated outward from the center of the opening 23a, so that the aperture of a predetermined size is provided at a predetermined position of the multi-sheet 10. Is formed.

Support shafts 27 and 27 are arranged on the upper left and right sides of the case body 23 so as to protrude outward. A mounting plate 28 having an L shape in side view is rotatably attached to the outer periphery of the support shafts 27 and 27. One surface of the mounting plates 28, 28 is mounted on the outer periphery of the endless bodies 3, 3.
Thus, the holding hole means 2 is supported so as to be swingable around the support shaft 27 at positions other than the replenishment position 17a and the planting position 17b, and the insertion shaft center of the seed ball holder 21 has a vertical direction by its own weight. It is conveyed (moved) while facing.

  Rollers 29 and 29 are disposed at the lower portions of the left and right sides of the case body 23 so as to protrude rotatably at a predetermined interval in the front-rear direction. At the replenishment position 17a and the planting position 17b, the conveying posture is regulated by the guide members 173 and 174 (see FIG. 7) arranged in parallel with the endless body 3. That is, the seed ball holder 21 and the aperture 26 are transported in a state inclined at a predetermined angle at the replenishment position 17a, and are transported parallel to the field scene at the planting position 17b.

Next, the extrusion means 4 will be described with reference to FIGS. 5 to 7 and FIGS. 13 to 15.
Immediately after the opening part is formed in the field covered with the multi-sheet 10 by the opening body 26 of the holding hole opening means 2, the pushing means 4 moves the seed ball G held by the holding hole opening means 2 downward. It is a means to plant the seed ball G in the field below the opening of the multi-sheet 10. The pushing means 4 is mainly composed of a crank driving part 5, a swinging part 6, a planting pushing part 7, a guide part 8, and an engaging part 9.

  The crank drive unit 5 is for transmitting the driving force of the first planting transmission mechanism 16 a disposed on the left side of the planting unit 17 to the planting extrusion unit 7. The crank drive unit 5 is mainly composed of a clutch, a turning arm 53, a driven arm 54, a connecting arm 55, and an upper rod support 56. The crank drive part 5 is arrange | positioned at the left-right outer side of the side part planting frame 182 (refer FIG. 2) of the planting part 17, respectively, and is arrange | positioned so that it may become a left-right pair. The clutch includes an electromagnetic solenoid 50, an engagement lever 51, and an engagement body 52.

  The push drive sprocket 43 of the first planting transmission mechanism 16a is connected to the push drive shaft 45 via a clutch (specifically, the engagement body 52). That is, the engagement body 52 is configured by a spring clutch externally fitted to the push-out drive shaft 45 and an engagement disk engaged with one end of the spring clutch, and a protrusion is provided on the outer periphery of the engagement disk. It is comprised so that engagement with the engagement lever 51 arrange | positioned in this is possible. Thus, when the engagement body 52 engages with the engagement lever 51, the transmission of power from the push drive sprocket 43 to the push drive shaft 45 is cut off, and by releasing the engagement, the push drive from the push drive sprocket 43 is driven. The power is transmitted to the shaft 45. Further, the engagement lever 51 is connected to a piston that is an operating body of the electromagnetic solenoid 50 that is an actuator arranged in the vicinity thereof. When the electromagnetic solenoid 50 is operated, the piston is contracted and the engagement lever 51 is rotated, the engagement between the engagement lever 51 and the engagement body 52 is released, and power is transmitted. The electromagnetic solenoid 50 is controlled to operate by turning on / off a limit switch in the vicinity of a planting position 17b (not shown) (the limit switch detects whether the holding hole means 2 has reached a predetermined position).

One end of a rotation arm 53 is fixed to each of the left and right ends of the push-out drive shaft 45. One end (inner side) of the rotation shaft 54 a is inserted into the other end of the rotation arm 53. One end of the driven arm 54 is rotatably disposed at the other end (outside) of the rotation shaft 54a. A through hole is opened at the other end of the driven arm 54. One end (outside) of the connecting shaft 54b is penetrated into the penetration hole. The other end (inner side) of the connecting shaft 54 b is rotatably supported on the upper portion of the connecting arm 55.
More specifically, adjustment holes 55a, 55a, and 55a are opened in the upper portion of the connection arm 55, and the other end (inside) of the connection shaft 54b is inserted into one of the adjustment holes 55a, 55a, and 55a. Is done. An upper rod support 56 is horizontally provided at the lower part of the left and right connecting arms 55.

  The upper rod support 56 supports the planting extrudate 70 from above and transmits the vertical movement of the crank driving unit 5 to the planting extrudate 70. The upper rod support 56 is a plate that is slightly shorter than the lateral width of the planting part 17. On the upper rod support 56, planting extrudates 70 of the planting extruding unit 7 described later are attached in the left-right direction at a predetermined interval (the same number and the same position as the seed ball holders 21). Further, on both the left and right sides of the upper rod support 56, there are openings in the vertical direction so as to be slidable in the vertical direction with respect to swing coupling bodies 62 and 62 of the swing section 6 described later. Cylindrical sliding bodies 57 57 are arranged.

  Further, the length adjusting mechanism of the crank drive unit 5 described above has a connecting shaft 54b penetrating in any one of the adjusting holes 55a, 55a, and 55a of the connecting arm 55, so that the connecting shaft 54b is lower than the connecting shaft 54b. The length can be changed. That is, by changing the vertical length of the connecting arm 55, the connecting length of the connecting arm 55 and the link (link constituted by the rotating arm 53, the rotating shaft 54a, the driven arm 54, and the connecting shaft 54b) is increased and decreased. The amount of movement can be adjusted, and the lift distance of the crank drive unit 5 is adjusted. Therefore, the raising / lowering height of the planting extruded body 70 connected to the upper rod support 56 of the crank driving unit 5 is changed, and the planting depth of the seed ball G can be easily changed to a desired depth. . Accordingly, as shown in FIG. 15 (a), the connecting shaft 54b penetrates the uppermost adjustment hole 55a, so that the entire length of the crank drive unit 5 becomes the longest, and the lower end of the planted extruded body 70 The position is placed at the bottom and the planting depth is deepest. Further, as shown in FIG. 15 (c), the connecting shaft 54b is inserted into the lowermost adjustment hole 55a, so that the entire length of the crank drive unit 5 is minimized, and the planted extruded body 70 is The lower end position is placed at the top, and the planting depth is the shallowest.

Next, the swing part 6 will be described with reference to FIGS. 7 and 12.
The swinging part 6 is for synchronizing and supporting the planting push part 7 with the movement of the holding hole means 2 in the front-rear direction. The oscillating portion 6 is mainly composed of a rotation fulcrum shaft 60, a lateral body 61, an oscillating connector 62, and a lower rod support 63. The oscillating portion 6 is disposed directly below the extrusion drive shaft 45 and is configured to be oscillatable in the front-rear direction.

  The rotation fulcrum shafts 60 and 60 are arranged so as to protrude inwardly from the upper portions of the left and right side planting frames 182 immediately below the push drive shaft 45, and are arranged on the side planting frames 182 (see FIG. 2). It is supported rotatably. A horizontal body 61 is fixed to the lower end of the inner end of each of the rotation fulcrum shafts 60 and 60.

  The horizontal body 61 is a member obtained by bending a plate body having a longitudinal direction in the left-right direction into a substantially inverted concave shape in a side view. At the left and right ends of the horizontal body 61, the upper ends of rod-like swing coupling bodies 62 and 62 having the vertical direction as the longitudinal direction are fixed. Both ends of a lower rod support 63 that is substantially parallel to the horizontal body 61 and slightly shorter in the left-right length than the horizontal body 61 are fixed to the lower ends of the swing coupling bodies 62 and 62. The lower rod support 63 is formed with an opening support 63a that slidably supports a planting extrusion 70 of the planting extrusion 7 described later.

  As shown in FIGS. 13 and 16 to 19, the planting pusher 7 is for planting the seed ball G held by the holding hole means 2 into the field. The planting extruding unit 7 is composed of a plurality (four in the present embodiment) of planting extrudates 70. The planting extrudate 70 is arranged in the space in the main planting frame 181 with a predetermined interval (interval between the openings 23a of the holding aperture means 2) in the left-right direction. The planting extruded body 70 mainly includes a guide member made up of a guide pipe 71 and a holding body 73, a scraper 74 made up of a planting rod 72, a first scraper 74a and a second scraper 74b, a first biasing member 75, and an attachment member. 76 and a sliding member 77.

  The guide pipe 71 is a cylindrical member whose longitudinal direction is the longitudinal direction, and an upper end thereof is fixed to the upper rod support 56 via an attachment member 76. The vertically middle part of the guide pipe 71 is slidably held by being inserted into the opening support part 63 a of the lower rod support 63 of the swing part 6. Further, the lower portion of the guide pipe 71 is held by a lateral guide plate 81 of the guide portion 8 described later so as to be slidable in the vertical direction.

  The attachment member 76 is a substantially cylindrical member, and attaches the guide pipe 71 to the upper rod support 56 by being inserted into an opening formed in the upper rod support 56 in the vertical direction. The inner diameter of the attachment member 76 is formed such that the upper part is larger than the lower part, and a first urging member 75 (to be described later) can be inserted into the inner space of the upper part.

  In the guide pipe 71, a planting rod 72, which is a bar having a longitudinal direction as a longitudinal axis, is slidably mounted in the vertical direction. The planting rod 72 is composed of a bar material slightly longer than the guide pipe 71. A sliding member 77 is attached to the top of the planting rod 72. The upper end of the sliding member 77 is configured to be able to come into contact with the lower surface of a contact member 91a fixed to a connecting shaft 91 extending in the left-right direction. The contact member 91 a is a plate-like member, and is fixed to the connecting shaft 91 at the same interval as the planting extrudate 70 in the left-right direction so as to easily come into contact with the sliding member 77.

  The receiving member 77 a is an annular member and is fitted on the planting rod 72. The upper surface of the receiving member 77 a is fixed to the lower surface of the sliding member 77. An annular groove is formed in the lower portion of the receiving member 77a so that a first urging member 75 described later can be inserted.

  The first urging member 75 is constituted by a compression spring, and a lower end portion of the first urging member 75 is inserted into the upper internal space of the attachment member 76, and an upper end thereof is disposed so as to contact the lower surface of the receiving member 77a. That is, the attachment member 76 and the receiving member 77a are arranged at an interval in the vertical direction by the length of the first biasing member 75.

  The holding body 73 is a member for holding the seed ball G. The holding body 73 is provided at a portion where the planting extrudate 70 is in contact with the seed ball G, that is, a lower end portion (an end portion on the farm field side) of the guide pipe 71. The holding body 73 is mainly configured by an attachment portion 73a and a contact portion 73b.

The attachment portion 73 a is a portion for attaching the contact portion 73 b to the lower end portion of the guide pipe 71. The attachment portion 73a is made of a hard material such as metal and is formed in a substantially cylindrical shape that opens in the vertical direction. The upper inner diameter of the attachment portion 73a is set to be substantially the same as the outer diameter of the guide pipe 71. The lower inner diameter of the mounting portion 73a is set to be larger than the inner diameter of the upper portion and substantially the same as the outer diameter of the contact portion 73b. Further, a groove 73c is formed in an annular shape on the upper inner peripheral surface of the attachment portion 73a so as to extend in the circumferential direction.
The attachment portion 73a is fitted on the lower end portion of the guide pipe 71 at its upper end portion.

The contact part 73b is a part for holding the seed ball G. The contact portion 73b is made of a soft material such as rubber, has a substantially cylindrical shape that opens in the vertical direction, and is formed in a substantially convex shape in a side view. The upper inner diameter of the contact portion 73b is set smaller than the lower inner diameter of the attachment portion 73a. The upper outer diameter of the contact portion 73b is set to be substantially the same as the lower inner diameter of the attachment portion 73a. The lower outer diameter and inner diameter of the contact portion 73b are set to be largest at the lowest position and smallest at the highest position. In addition, the lower inner diameter of the contact portion 73b is set to be greater than the upper inner diameter and increase toward the lower side in the axial direction. The lower outer diameter of the contact portion 73b is set to be larger than the upper outer diameter and increase toward the lower side in the axial direction. Thus, the upper portion of the contact portion 73b is formed in a cylindrical shape having a constant outer diameter and inner diameter, and is a reduced diameter portion. The lower part of the contact part 73b is formed so that its outer diameter and inner diameter are equal to or larger than the upper outer diameter and inner diameter, respectively, and become smaller toward the upper side in the axial direction. Yes.
Further, the inner peripheral cross-sectional shape of the lower portion of the contact portion 73b is a polygonal shape in a bottom view so that the inner diameter of the lower portion is not constant on the same plane orthogonal to the axial direction, and a hexagonal shape (regular hexagonal shape) in this embodiment. Formed. Thus, the internal space below the contact portion 73b becomes smaller as the inner diameter decreases toward the upper side in the axial direction, and a regular hexagonal opening having six side portions 73d and six corner portions (vertices) 73e in bottom view is obtained. It is a hole (see FIG. 18A).
The contact portion 73b is coaxially inserted into the lower portion of the attachment portion 73a from below, and is fixed to the lower end portion of the guide pipe 71 via the attachment portion 73a. Here, the lower end part of the contact part 73b is arrange | positioned so that it may protrude below rather than the lower end surface of the attaching part 73a.

As a result, the holding body 73 enters the holding hole means 2 from above and easily holds the upper part of the seed ball G held by the seed ball holder 21.
In addition, although the internal peripheral cross-sectional shape of the contact part 73b is formed in the hexagon in this embodiment, you may form in a pentagon, a heptagon, an octagon, another polygon, a circle, and an ellipse. . Moreover, the inner peripheral cross-sectional shape of the contact part 73b is not limited to a regular polygon.

  Further, in order to further strengthen the bonding between the contact portion 73b and the attachment portion 73, an annular plate-like protrusion is formed so as to protrude outward from the upper outer peripheral surface of the contact portion 73b, and the protrusion can be fitted. A groove may be formed on the inner periphery of the mounting portion 73a.

The scraper 74 is for performing a guide when the planting rod 72 moves in the vertical direction. Among the scrapers 74, the first scraper 74 a is a member for removing deposits such as soil attached to the tip (lower end) of the planting rod 72. The first scraper 74a is formed in an annular plate shape that opens in the vertical direction. The inner diameter of the first scraper 74 a is set slightly larger than the outer diameter of the lower part of the planting rod 72. The outer diameter of the first scraper 74a is set larger than the upper inner diameter of the attachment portion 73a. The vertical width of the first scraper 74a is set smaller than the vertical width of the groove 73c of the attachment portion 73a.
The first scraper 74a is slidable in the vertical direction in the groove 73c by fitting the outer peripheral edge portion into the groove 73c with the planting rod 72 inserted through the opening in the mounting portion 73a. Be placed.

The 2nd scraper 74b is a member for removing the deposit | attachment of the planting rod 72 which was not removed by the 1st scraper 74a. The second scraper 74b has an annular shape that opens in the vertical direction, and is formed in a convex shape in a side view. The inner diameter of the second scraper 74 b is set to be substantially the same as the outer diameter of the lower part of the planting rod 72. The outer diameter of the upper portion (reduced diameter portion) of the second scraper 74 b is set to be substantially the same as the inner diameter of the guide pipe 71. The outer diameter of the lower part (expanded part) of the second scraper 74 b is set larger than the upper outer diameter, larger than the inner diameter of the guide pipe 71, and smaller than the outer diameter of the guide pipe 71.
The second scraper 74b is disposed in the mounting portion 73a so that the upper portion is fitted into the lower end of the guide pipe 71 with the planting rod 72 inserted through the opening, and is slidable in the vertical direction. The

  The engaging portion 9 shown in FIGS. 13 and 19 to 21 temporarily restricts the raising of the planting rod 72 when the planting push-out unit 7 rises after the planting of the seed ball G is completed, 71 is raised first, and the seed ball G in the holding body 73 is forcibly pushed out by the planting rod 72. The engaging portion 9 is mainly composed of an upper engaging body 90 disposed on both sides of the connecting shaft 91 and a lower engaging body 290 disposed on both sides of the lower rod support 63.

Since the members of the engaging portion 9 are bilaterally symmetric, only the configuration on the left side will be described.
The upper engaging bodies 90 are respectively arranged on the upper rod support 56 in the vicinity of the sliding body 57 above the left and right planting push-out portions 7 so as to form a pair of left and right. The upper engagement body 90 is mainly configured by a connecting shaft 91, a first support member 92, a second support member 93, an upper engagement member 94, a second urging member 95, a regulating member 96, and the like.

  The first support member 92 is configured by a plate-like member, and a lower side surface thereof is fixed to a contact member 91 a fixed to the connecting shaft 91. One side of the connecting shaft 91 passes through the first support member 92, and both sides of the connecting shaft 91 are inserted into a long hole 96 a of a regulating member 96 described later. In addition, a restriction projection 92 a is projected from the inner side surface of the first support member 92, and is disposed so as to be in contact with the lower surface on one side of the upper engagement member 94.

  The second support member 93 is configured by a plate-like member, and the connecting shaft 91 is fixed to pass through the middle part of the second support member 93 in parallel with the first support member 92. A locking projection 93a is projected from the lower end of the second support member 93 to the outside of the machine body.

  The upper engagement member 94 has a front plate and side plates on the left and right sides thereof, and is formed of a plate-like member that is bent in a substantially U shape in plan view. A rotation fulcrum shaft 94a is penetrated and supported in the front and rear halfway portions of the left and right side plates of the upper engagement member 94. Both sides of the rotation fulcrum shaft 94a are rotatably supported by the upper portions of the first support member 92 and the second support member 93. That is, the upper engagement member 94 is disposed between the first support member 92 and the second support member 93, and is rotatable about the rotation fulcrum shaft 94a so as to be rotatable about the first support member 92 and the second support member 93. Supported by At the rear part of the left and right side plates of the upper engaging member 94, a contact shaft 94b having a cylindrical collar 94c is provided horizontally. The front plate of the upper engagement member 94 is formed with a locking hole 94d.

  The second urging member 95 is constituted by a tension spring, and an upper end thereof is hooked on the locking hole 94d of the upper engaging member 94, and a lower end thereof is hooked on the locking projection 93a. On the other hand, the first support member 92 and the second support member 93 are provided with restricting protrusions 92 a and 93 b for restricting the front portion of the upper engaging member 94 from rotating downward. It arrange | positions so that it may protrude toward.

  Accordingly, the front portion of the upper engagement member 94 is urged downward (see arrow B in FIG. 19) about the rotation fulcrum shaft 94a by the second urging member 95, and by the restriction protrusions 92a and 93b. Rotation downward from the state shown in FIG. 19 is restricted.

  The restricting member 96 is made of a plate material whose longitudinal direction is the longitudinal direction, and a long hole 96a whose longitudinal direction is the longitudinal direction is formed in the upper part thereof. The lower end of the regulating member 96 is fixed to the upper rod support 56 inside the machine body relative to the sliding body 57. In the long hole 96a, the left end portion (outer end portion) of the connecting shaft 91 and the rotation fulcrum shaft 94a is slidably inserted.

  The lower engagement body 290 is disposed on the lower rod support 63 below the upper engagement member 94 disposed on the left and right sides in the planting standby state (see FIG. 13) in which the planting extrusion body 70 is positioned at the top. The The lower engagement body 290 mainly includes a lower support member 291, an upper support member 292, a lower engagement member including a first lower engagement member 293 and a second lower engagement member 294, a rotation fulcrum shaft 295, and a third attachment. The biasing member 296 is configured.

  The lower support member 291 is composed of two plates whose length is in the vertical direction, and the lower front end thereof is fixedly provided on both rear portions of the lower rod support 63 with a predetermined left and right spacing. The lower support member 291 is formed with a plurality of apertures at predetermined intervals in the vertical direction.

  The upper support member 292 is made of a plate material, and is formed in a substantially U shape with the front opened in a plan view so as to have a rear plate and left and right side plates. The upper part of the rear plate of the upper support member 292 is cut out and formed so that the upper end is lower than the left and right side plates. Locking support members 292a and 292a are arranged on the rear plate of the upper support member 292 so as to protrude rearward at a predetermined interval from side to side. A locking shaft 292b is horizontally provided between the locking support members 292a and 292a. A plurality of apertures are formed in the lower part of the left and right side plates of the upper support member 292 with the same spacing as the lower support member 291. The upper support member 292 and the lower support member 291 are integrated by penetrating them and fastening them with bolts or the like in a state in which their opening portions are aligned in a side view. In addition, since a plurality of apertures are formed, the height of the lower engagement body 290 can be adjusted by changing the apertures to be matched.

The lower locking member disposed on the upper portion of the upper support member 292 includes a first lower engagement member 293 and a second lower engagement member 294.
The first lower engagement member 293 and the second lower engagement member 294 are each constituted by a plate-like member. The upper part of the first lower engagement member 293 and the lower part of the second lower engagement member 294 are fixed so as to overlap each other. A front lower portion of the first lower engagement member 293 is rotatably supported by a rotation fulcrum shaft 295 horizontally mounted on the upper portion of the upper support member 292. Further, a locking shaft 293 a is horizontally mounted on the lower rear portion of the first lower engagement member 293.

  The upper front end of the second lower engagement member 294 is formed with an inclined side 294a that is inclined to the front low and the rear high in a side view. The upper part of the second lower engagement member 294 is formed so as to protrude forward from the front end of the first lower engagement member 293, and forms a locking portion. The first lower engagement member 293 and the second lower engagement member 294 are formed in the shape of a hook in a side view as a whole.

  The third urging member 296 is configured by a compression spring or the like, and is for urging between the lower end of the first lower engagement member 293 and the locking support members 292a and 292a. A plate-like insertion plate 297 is inserted into the third urging member 296. One end (upper end) of the insertion plate 297 is locked to the locking shaft 293a, and the other end (lower end) is locked to the locking shaft 292b. A long hole 297a is formed at the other end of the insertion plate 297, and a locking shaft 292b is slidably inserted into the long hole 297a.

As shown in FIGS. 7, 12, and 22, the guide portion 8 is a structure for synchronizing the rearward movement of the planting push portion 7 and the holding hole means 2 at the planting position 17 b. It is arranged at the lower part of the part 17.
The guide portion 8 is mainly composed of a side guide plate 80, a lateral guide plate 81, a guide shaft 84, a synchronization guide rod 85, and a tension member 86.

  The side guide plates 80 are made of a plate material whose longitudinal direction is the front-rear direction, and are arranged in a pair of left and right at the bottom of the side planting frame 182. Openings 80 a and 80 a having the same shape are formed in the front and rear portions of the side guide plate 80. The opening 80a is opened substantially horizontally from the front end to the middle part, and is opened from the middle part to the rear end so as to have a front low and rear height. That is, the opening 80a is formed in a substantially reverse “H” -shaped long hole.

The lateral guide plate 81 is formed in a substantially inverted U shape when viewed in cross section, and guide shafts 84, 84, 84, 84 project from the front and rear sides of the left and right ends of the lateral guide plate 81, respectively, The distal ends of the guide shafts 84, 84, 84, 84 are inserted into the left and right openings 80a, 80a, 80a, 80a and supported so as to be slidable back and forth.
The horizontal guide plate 81 is formed with openings at predetermined intervals in the left-right direction. The opening is arranged so that the lower end portion of the guide pipe 71 can slide.

  The synchronization guide bar 85 is a bar whose longitudinal direction is the longitudinal direction, and is arranged so as to protrude downward from the left and right sides of the holding hole means 2, and when the endless body 3 circulates, the outer periphery of the endless body 3 This is a member for abutting on the mounting plate 28 fixed to the guide plate 8 so that the guide portion 8 moves in synchronization with the rearward movement of the holding hole means 2. The upper end of the synchronization guide rod 85 is fixed to the front and rear middle portions of the left and right ends of the horizontal guide plate 81. Specifically, through holes are formed at both ends of the horizontal guide plate 81, and the upper end of the synchronous guide rod 85 is inserted into the through holes, and the synchronous guide rod 85 and the horizontal guide plate 81 are connected with nuts or the like. And conclude.

  The tension member 86 is configured by a tension spring having hooks at both ends. One end of each of the tension members 86 and 86 is locked to mounting members 87 and 87 fixed to the left and right side planting frames 182, and the other end is locked to the front guide shafts 84 and 84. Thus, the lateral guide plate 81 is biased so as to be pulled forward by the tension member 86.

  Next, operation | movement of each planting apparatus of the planting part 17 arrange | positioned in the planting frame 18 is demonstrated.

  First, the synchronous movement of the holding hole means 2 and the pushing means 4 will be described with reference to the drawings.

  As shown in FIG. 22 (a), the holding hole means 2 is rotated from the front to the rear at the planting position 17b by rotating the endless body 3, as shown in FIG. Move to. At this time, the lower end of the synchronous guide rods 85 of the guide portion 8 abuts against the mounting plate 28 of the holding hole means 2, so that the lateral guide plate 81 to which the lateral guide plate 81 is fixed moves rearward. As shown in FIG. 22B, the guide shafts 84, 84, 84, 84 projecting laterally from the lateral guide plate 81 have openings 80a, 80a, 80a,. It moves backward along the horizontal portion of 80a, that is, while being guided and slid.

  When the holding hole opening means 2 further moves rearward, as shown in FIG. 22C, the guide shaft 84 moves rearward and upward along the inclined portion of the opening 80a. As the holding opening means 2 (lateral guide plate 81) moves rearward and upward, the synchronization guide rods 85 and 85 are lifted, and the lower ends of the synchronization guide rods 85 and 85 are lower than the mounting plate 28 of the holding opening means 2. When the contact between the synchronization guide rods 85 and 85 and the holding hole means 2 is eliminated, the lateral guide plate 81 is returned to the front by the urging force of the tension member 86 in the forward direction. That is, the guide shafts 84 are moved to the front ends of the openings 80a, and the lower ends of the synchronization guide rods 85 and 85 can be brought into contact with the mounting plate 28 of the next holding hole means 2 positioned forward. .

  On the lateral guide plate 81, the lower end portion of the guide pipe 71 is slidably supported. Therefore, the guide pipe 71 also moves in conjunction with the operation of the lateral guide plate 81. The guide pipe 71 is slidably supported by the lower rod support 63 of the swinging portion 6 disposed above the lateral guide plate 81. Since the swinging portion 6 is supported so as to be rotatable about the rotation fulcrum shaft 60, the guide pipe 71 moves in the front-rear direction about the rotation fulcrum shaft 60.

  Accordingly, the planting pusher 7 held by the lateral guide plate 81 is moved (swinged) in synchronism with the rearward movement of the holding hole means 2 at the planting position 17b as shown in FIG. It is possible to insert the lower part of the planting extrudate 70 into the opening 23a of the holding hole means 2 at the time of planting.

  Next, operation | movement of the extrusion means 4 for planting the seed ball G in a farm field is demonstrated using figures.

  As shown in FIGS. 6, 7, 13, and 14, when the holding hole means 2 reaches a predetermined position of the planting position 17b, it comes into contact with the contact of the limit switch and is turned ON. Then, the electromagnetic solenoid 50 connected to the limit switch is operated, and the engagement lever 51 is rotated to be detached from the engagement body 52. Then, the engaging body 52 is engaged with the push drive shaft 45 and rotates integrally, and the power is transmitted to the push drive shaft 45. Accordingly, the rotational force of the left push-out drive sprocket 43 is transmitted to the push-out drive shaft 45, and the left and right turning arms 53 fixed to the push-out drive shaft 45 are rotated as shown in FIG. The limit switch is turned OFF after the contact portion passes, and the electromagnetic solenoid 50 returns to the original position. Then, when the engaging body 52 rotates once, it engages with the engaging lever 51 again, and the power transmission from the engaging body 52 to the push drive shaft 45 is cut off. When the push-out drive shaft 45 rotates once, the rotating arm 53 connected to the push-out drive shaft 45 rotates one time, and the driven arm 54 is moved up and down while swinging back and forth, and is moved upward from the driven arm 54 via the connecting arm 55. The rod support 56 is moved up and down in conjunction with each other.

  The upper rod support 56 is attached with the upper parts of the planting extrusions 70, 70, 70, 70 of the planting extrusion unit 7. Therefore, in conjunction with the vertical movement of the upper rod support 56, the planting extrudate 70 moves up and down. Further, the upper rod support 56 is slidably disposed on the swing coupling body 62 via a pair of left and right sliding bodies 57. Therefore, in conjunction with the movement of the swinging portion 6 in the front-rear direction, the planting extrudate 70 moves in the front-rear direction about the rotation fulcrum shaft 60 and moves up and down without difficulty.

That is, the planting push part 7 moves up and down by the operation of the crank drive part 5.
In addition, when the planting pusher 7 is moved downward by the operation of the crank driving unit 5 (see FIG. 14C), the seed ball G is planted in the field.

  Next, the planting operation of the planting extruded body 70 will be described.

By the downward movement of the upper rod support 56 of the crank driving unit 5, the planting extrusion unit 7 moves downward. Therefore, as shown in FIG. 19, the upper engagement body 90 together with the regulating member 96 fixed to the upper rod support 56 approaches the second lower engagement member 294 of the lower engagement body 290 as shown in FIG. Then, the collar 94 c of the upper engagement body 90 contacts the inclined side 294 a of the second lower engagement member 294.
Furthermore, when the upper engagement body 90 moves downward, the collar 94c presses the second lower engagement member 294 along the inclined side 294a. Accordingly, the lower engagement members (293 and 294) are rotated in the direction of arrow C around the rotation fulcrum shaft 295 against the urging force of the third urging member 296 (see FIG. 23). At this time, the lower front portion of the upper engaging member 94 is in contact with the restricting projections 92a and 93b, so that the collar 94c is not engaged with the second lower engagement without rotating forward about the rotation fulcrum shaft 94a. The member 294 is pressed. Further, since the second lower engagement member 294 is pressed, the third biasing member 296 is compressed substantially in the vertical direction, and the upper end of the long hole 297a of the insertion plate 297 is brought into contact with the locking shaft 292b. Moving.

  Further, when the collar 94c reaches the lower part of the inclined side 294a, the lower engaging members (293, 294) are moved in the D direction about the rotation fulcrum shaft 295 by the vertical biasing force of the third biasing member 296. It is rotated. At this time, the planting extruded body 70 and the upper engaging body 90 are in the lowest position.

  On the other hand, at this time, as shown in FIG. 22, the holding aperture means 2 is brought into contact with the outer end of the drive arm 25 by the cam body arranged at the planting position 17b, and the aperture body 26 rotates outward. Thereby, an opening part is formed in the multi-sheet 10 covered with the farm field.

  Thereafter, as shown in FIGS. 25 and 26, the holding body 73 disposed at the lower end of the guide pipe 71 moving downward enters the holding hole means 2 from above and is being held by the seed ball holder 21. The seed ball G is held. The holding body 73 moves downward together with the seed ball G while holding the seed ball G. The holding body 73 of the guide pipe 71 reaches its lowermost position, and at the same time presses the seed ball G against the field below the opening of the multi-sheet 10 (see FIG. 2).

  Thereafter, the planting push-out unit 7 is moved upward by the upward movement of the upper rod support 56 of the crank driving unit 5 (see FIG. 14D).

  On the other hand, as shown in FIGS. 24 and 27, the engaging portion 9 is engaged with the lower rod 56 (293 294), so that the engaging portion 9 is engaged with the upper rod support 56. 9, only the regulating member 96 fixed to the upper rod support 56 rises. However, the upper engaging body 90 excluding the regulating member 96 stops rising until the connecting shaft 91 contacts the lower end of the long hole 96a. As the upper rod support 56 rises, the guide pipe 71 fixed to the upper rod support 56 via the attachment member 76 rises.

  At this time, the upper rod support 56 compresses the first biasing member 75 via the mounting member 76 and the receiving member 77a against the biasing force of the first biasing member 75, and slides on the mounting member 76. The planting rod 72 fixed to the sliding member 77 raises only the guide pipe 71 as it is while shortening the space between the members 77.

  On the other hand, when paying attention to the lower end of the planting extrusion portion 7 shown in FIG. 17, the planting rod 72 is held by the connecting shaft 91 to maintain its height, and the holding body 73 connected to the guide pipe 71 is After raising the predetermined height, the planting rod 72 rises. Therefore, the planting rod 72 presses the upper part of the seed ball G, and only the guide pipe 71 and the holding body 73 move upward, so that the seed ball G in the field is released from the holding state of the holding body 73 and enters the field. Planted. Furthermore, even if foreign matter such as soil adheres in the holding body 73 immediately after planting, the planting rod 72 rises after the guide pipe 71 and the holding body 73, so that the planting rod 72 can push the soil in the holding body 73 downward. Then, as the guide pipe 71 moves up, the first scraper 74a removes the deposits on the planting rod 72 stopped on its lower surface, and the second scraper 74b does not completely remove the deposits by the first scraper 74a. Remove. Moreover, the deposit | attachment removed by the 2nd scraper 74b falls from the opening part of the 1st scraper 74a.

Further, as shown in FIG. 28, the sliding member 77 presses the contact member 91a upward by the upward movement of the upper rod support 56 of the crank driving unit 5 shown in FIGS. 14 (c) and (d). At the same time, the lower end of the long hole 96a of the regulating member 96 presses the connecting shaft 91 upward.
Due to these two pressing forces, the upper engagement body 90 rises. Further, since the collar 94c is locked to the second lower engagement member 294, the rotation fulcrum shaft 94a rises against the urging force of the second urging member 95, and the upper engagement member 94 rotates. The posture is such that the fulcrum shaft 94a is rotated downward about the fulcrum shaft 94a.

  As the upper engaging member 94 is further raised, the collar 94c is raised while rotating on the outer periphery of the contact shaft 94b, and the engagement with the second lower engaging member 294 is released. As shown in FIG. 19, the upper engaging member 94 returns to the original position by the urging force of the second urging member 95. Similarly, the first biasing member 75 presses the contact member 91a upward through the sliding member 77 by the biasing force, and raises the upper engagement body 90 excluding the regulating member 96. Therefore, the rotation fulcrum shaft 94 a comes into contact with the upper end of the long hole 96 a of the restriction member 96.

  At this time, the planting rod 72 moves upward together with the guide pipe 71 as shown in FIGS. Then, the guide pipe 71 is returned to the front with the rotation fulcrum shaft 60 as the center by the guide portion 8 described above, and the guide pipe 71 is positioned above the new holding hole opening means 2 holding the seed ball G.

Therefore, the planting push-out unit 7 moves the planting push-out unit 7 up and down as the crank drive unit 5 moves up and down, and synchronous movement in the front-rear direction with the holding hole means 2 by the swinging unit 6 and the guide unit 8. do. The planting pusher 7 can plant the seed ball G held in the holding hole means 2 into the field.
The seed ball G is planted in the field by performing the series of movements for each holding hole opening means 2.

  This series of movements is caused by the connection shaft 91 of the engaging portion 9 and the contact member 91a at the left and right center with respect to the two planting extruded bodies 70 and 70 at the left and right center of the machine body where the engaging portion 9 is not installed. This is done via 91a. That is, the two planting rods 72, 72 at the center of the left and right sides of the machine body are moved up and down the connection shaft 91 in substantially the same manner as the planting rods 72, 72 of the planting extruded bodies 70, 70 arranged on the left and right sides. Behave with it.

  By comprising in this way, a planting rod can reduce a planting loss rather than integrally connecting 72, 72, 72, 72 to the connection shaft 91, and can perform planting work efficiently. it can.

  Hereinafter, the transition of the holding from the seed ball G held in the holding hole means 2 to the holding body 73 and the holding state of the seed ball G of the holding body 73 will be described.

  As shown in FIGS. 18 and 25, for example, when the seed ball G is a garlic seed ball, the seed ball G has a substantially isosceles triangular shape in plan view when the root side is the bottom. By planting the seed ball G so that the portion corresponding to the base of the isosceles triangle extends in a direction perpendicular to the planting progression direction (arrow A), the direction in which the leaves come out can be aligned. It spreads efficiently and can improve the yield of garlic. Therefore, when the operator inserts the seed ball G into the seed ball holder 21 of the holding hole means 2, the budding point G1 that is the apex faces frontward and upward, and is in contact with the scale of another seed ball G at the time of harvesting. Insert into the seed ball holder 21 so that the contact portions G2 and G2 face obliquely forward. At this time, if the direction of the apex of the seed ball G is aligned and inserted into the seed ball holder 21, it may be inserted into the seed ball holder 21 and held in the reverse direction, rightward or leftward.

The seed ball G held by the holding opening means 2 in the above state is held by the holding body 73 of the planting extruding body 70 in place of the holding opening means 2 at the planting position 17b (see FIG. 7). Moved to.
Specifically, as shown in FIGS. 25 and 26, after the lower end of the holding body 73 has entered the holding hole means 2, it comes into contact with the holding portion 21 h at the upper part of the seed ball holder 21 and moves downward. At the same time, the holding portion 21h of the seed ball holder 21 that contacts the seed ball G is pushed downward. That is, the seed ball G is gradually released from the upper part of the holding state by the seed ball holder 21 as the holding body 73 moves downward, and comes into contact with the contact portion 73b, so that the seed ball G does not change its posture. Instead of the holder 21, it is held by the holding body 73.

  At this time, as shown in FIG. 18, the holding body 73 contacts the seed ball G by bringing the two apexes of the side surface and the rear portion of the seed ball G near the budding point G1 into contact with the side surface portion 73d in the bottom view. It is held by the portion 73b.

  When the holding body 73 holds the seed ball G by the contact portion 73b, depending on the shape of the seed ball G, the side surface sandwiched between the two vertices may contact the side surface portion 73d, or the two vertices may contact the corner portion 73e. In this case, the seed ball G can be held in substantially the same posture as the posture held by the holding hole means 2.

  The seed ball G has a shape in which the budding location G1 side has a diameter smaller than that of the root side in a side view. Therefore, the three apexes of the seed ball G in a plan view come into contact with the side surface portion 73d of the contact portion 73b of the holding body 73 whose shape is flexibly deformed with lines and surfaces. That is, the holding body 73 is in contact with the seed ball G at at least three lines or surfaces. Therefore, when the planting extrudate 70 moves downward, the seed ball G can be moved while being stably held.

  As described above, the planting machine 1 according to the present embodiment includes the traveling unit 14 and the planting unit 17 that is disposed above the traveling unit 14 to plant the seed balls G, and travels in the traveling direction. A planting machine 1 for planting seed balls G at every planting interval P (predetermined interval), wherein the planting part 17 includes holding hole means 2 (holding means) for holding seed balls G, and A cylindrical guide pipe 71 (a part of the guide member) that moves to the field while holding the seed ball G being held in the holding hole opening means 2, and is built in the guide pipe 71 and held by the guide member. An extruding means 4 having a planting rod 72 for planting the seed ball G while extruding it into the field, and a holding body 73 for holding the seed ball G is provided in a portion of the guide member in contact with the seed ball G; The holding body 73 is cylindrical and its inner peripheral cross-sectional shape is a polygon. A.

  With this configuration, when the seed ball G is planted in the field, the holding body 73 comes into contact with the outer peripheral surface of the seed ball G at a plurality of locations and holds the seed ball G in an appropriate posture. Will do. Therefore, by extruding the seed ball G held by the holding body 73 with the planting rod 72, the seed ball G can be planted in the field with an appropriate posture as it is. As a result, the postures of the various spheres G planted in the field are improved, and the crops grow uniformly.

  The planting machine 1 of this embodiment comprises the holding body 73 made of a soft material.

  With this configuration, the contact area of the holding body 73 with the seed ball G can be increased, and the seed ball G can be easily held on the holding body 73 in an appropriate posture. Therefore, the seed ball G can be planted in the field with an appropriate posture. Moreover, the holding body 73 does not flexibly contact the outer peripheral surface of the seed ball G and damage it.

1 Planting machine 2 Holding hole means (holding means)
4 Extruding means 14 Traveling section 17 Planting section 70 Planting extruded body 71 Guide pipe (part of guide member)
72 Planting rod 73 Holding body (part of guide member)
211 First holding plate (a type of holding plate)
211a First insertion hole 211b Cut line 212 Second holding plate (a kind of holding plate)
212a Second insertion hole 212b Cut 213 Third holding plate (a kind of holding plate)
213a Third insertion hole 213b Cut 214 Opening plate 214a Opening part G Seed ball P Planting interval (predetermined interval)

Claims (4)

A planting machine comprising a traveling unit and a planting unit arranged above the traveling unit for planting seed balls, and planting seed balls at predetermined intervals in the traveling direction while traveling,
The planting part is
Holding means for holding a seed ball;
A cylindrical guide member that moves to the field while holding the seed balls being held by the holding means, and a plant that is embedded in the guide member and is planted while pushing the seed balls held by the guide members to the field An extruding means having an attached rod,
A planting machine characterized in that a holding body for holding a seed ball is provided in a portion that comes into contact with the seed ball of the guide member, and the holding body is formed in a cylindrical shape and its inner peripheral cross-sectional shape is a polygon.   The planting machine according to claim 1, wherein the holding body is made of a soft material. The holding means is
A holding plate in which an insertion hole is formed in the center and a cut is formed in the direction of the apex of the polygon that coincides with the holding body from the insertion hole, and an opening plate in which a hole portion larger than the seed ball is formed in the center Are formed by alternately overlapping a plurality of the centers, and the insertion holes of the holding plate arranged at the center in the vertical direction are configured to be larger than the insertion holes of the holding plates arranged on the upper and lower sides. The planting machine of Claim 1 or Claim 2 characterized by these.   The planting machine according to claim 3, wherein the insertion hole of the holding plate of the intermediate layer arranged between the holding plates arranged on both the upper and lower sides is formed such that the opening area is larger toward the lower side.

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