TWI504339B - Planting machine - Google Patents

Description

Planting machine

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

Since the prior art, the seed ball of garlic and the like has been planted in such a manner that the bud of the seed ball becomes above and the root of the seed ball becomes below. Improper planting will be associated with a reduction in harvest and a reduction in grade due to poor germination. Therefore, in order to harvest high-quality crops, it is necessary to plant the seed balls by hand.

However, when the seed ball is cultivated as a commercial crop, the operator has a large burden on the manual due to the expansion of the agricultural area. Therefore, there are a variety of planting machines that propose seeding of seed balls in the field.

For example, the planter disclosed in Patent Document 1 is provided with a holder that temporarily accommodates a crop (seed ball) before planting, and an upper and lower mechanism that holds the holder between the accommodating position and the planting position. Cycling; and launching a stem that pushes out and implants the crop contained in the holder; and an up and down mechanism that moves the pusher bar up and down. In the planting machine, the stem portion is inserted from the upper end portion of the holder that is moved to the planting position, and the crop contained in the holder is pushed downward by the pushing rod portion, whereby the crop can be planted in the field.

(Patent Document 1) Japanese Patent Laid-Open Publication No. 2009-213359

However, the holder and the push-out lever portion of the planter shown in Patent Document 1 are not considered in consideration of the shape of the seed ball or the planting posture. Therefore, the stability of the seed ball to the push-out portion is poor, and there is a case where the seed ball pushed out by the push-out portion cannot be planted in the field in an appropriate posture.

It is therefore an object of the present invention to provide a planter that can seed a seed ball in a field in an appropriate posture.

In the first application of the patent application, a planting machine is a planting machine having a walking portion and a planting portion for planting a seed ball, and planting the seed ball at a predetermined interval in the walking direction while walking on the field. The planting unit includes: a holding means for holding the seed ball; and a pushing means for planting the seed ball held by the holding means to the field while pushing the seed ball, wherein the pushing means comprises: a cylindrical guiding member that moves the seed ball held by the holding means to the field; and a planting bar that is attached to the guiding member and moves the seed ball by the guiding member Planting is carried out while being pushed out to the field, wherein the guiding member is provided with a holding body for holding the seed ball when the seed ball is moved, and the holding body has a cylindrical shape whose one side faces the holding means, The inner peripheral cross-sectional shape is formed into a polygonal shape.

In the second item of the patent application, the aforementioned holding system is composed of a soft material.

In the third aspect of the patent application, the holding means is a holding plate having an insertion hole formed in the center thereof and a slit formed in a direction from a vertex of the polygon conforming to the holding body; and The orifice plate is formed with a larger opening portion than the seed ball in the center, and is formed by alternately overlapping a plurality of the insertion holes and the center of the opening portion, and is disposed at the center in the vertical direction The insertion holes of the holding plates are larger than the insertion holes of the holding plates disposed on the upper and lower sides.

In the fourth aspect of the patent application, the insertion hole of the holding plate of the intermediate layer disposed between the holding plates on the upper and lower sides is formed to have a larger opening area as it is closer to the lower side.

As an effect of the present invention, the effects as described below can be achieved.

In the first item of the patent application, when the seed ball is planted in the field, the body is held in contact with the outer surface of the seed ball at a plurality of places, and the seed ball is held in an appropriate posture. Therefore, the seed ball held by the holder is pushed out by the planting rod, whereby the appropriate posture in the original state can be planted in the field.

In the second item of the patent application, when the holding body holds the seed ball, the holding body is deformed in conformity with the shape of the seed ball, whereby the contact area of the holding body with the seed ball can be increased, and the posture of the holding body is easily adapted. To keep the seed ball. Thus, the seed ball can be planted in the field in an appropriate posture. Further, since the holder is softly contacted with the outer surface of the seed ball, the seed ball is not injured.

In the third item of the patent application, since the apex of the holding body and the crack of the holding plate are identical, the seed ball can be held while the proper posture is maintained, and the planting operation can be appropriately performed. Here, in general, the seed ball has a substantially polygonal shape in plan view. In other words, the apex of the seed ball can be held in conjunction with the crack of the retaining plate, and the retaining state does not change and can be held by the retaining body when pushed out by the guiding member of the pushing means. Therefore, the direction of the bud of the seed ball does not shift or fall when pushed out, and can be surely maintained and planted.

Further, the insertion holes of the holding plates of the intermediate layer in the up-and-down direction are formed to be larger than the insertion holes on the upper and lower sides. Thus, the excessive friction caused by the seed ball and the holding plate can be alleviated as compared with the formation of the insertion hole of the same size, and the seed ball can be appropriately maintained by holding the inner face of the insertion hole of the plate. Therefore, when the operator inserts the seed ball into the holding means, no large friction is generated, and the seed ball can be easily inserted without damaging the seed ball. Further, the seed ball can be held in a posture suitable for holding the means, and the seed ball can be planted in the field in an appropriate posture by means of pushing means.

In the fourth aspect of the patent application, the insertion hole of the holding plate of the intermediate layer has an opening area on the lower side (discharge side) larger than the opening area on the upper side (insertion side). In other words, the internal space is formed to become larger as it approaches the lower side. Therefore, when the operator inserts the seed ball, the front surface of the holding plate near the lowermost side will feel new resistance again due to the lowermost holding plate after the new resistance depending on the holding plate is not changed or reduced. . Therefore, it is easier for the operator to grasp the insertion position of the seed ball in the holding means.

Then, since the seed ball can be easily inserted into the holding means in an appropriate posture while being held by the holding plate disposed on the upper and lower sides with a moderate force, the seed ball can be planted in the field in an appropriate posture by the pushing means.

Next, an embodiment of the invention will be described.

In addition, although it is assumed that the ridge is covered with a mulch sheet, it is not particularly limited thereto, and it may be implanted in a substantially flat field that is not covered with the cover paper. .

Hereinafter, the overall configuration of the planting machine 1 according to an embodiment of the present invention will be described with reference to Figs. 1 to 5 .

In the description, the direction of the arrow A shown in the drawing is taken as the direction before the planter 1, and the front, rear, left and right directions are defined.

The planter 1 is a planter used for planting the seed ball G on the ridge covered with the cover paper 10. The planter 1 mainly includes a body frame 12, a driving unit 13, a running unit 14, an operation operation unit 15, a power transmission mechanism, a planting unit 17, and a seed ball replenishing unit 19.

The body frame 12 is a structure that forms a skeleton of the planter 1, and is connected and fixed: a plurality of left and right pillar frames extending in the vertical direction; and a plurality of front and rear frames laterally disposed in the pillar frame and extending in the front-rear direction And a left and right frame that is horizontally disposed between the front and rear frames in the left and right direction. A step 12a for allowing the operator to move up and down the planter 1 is formed substantially centrally before and after the body frame 12. A power transmission mechanism or a lifting link mechanism 11 that raises and lowers the planting portion 17 to maintain the distance between the planting surface (field) and the planting portion 17 at an appropriate height is disposed in the center of the left and right sides of the pedal 12a. The lift link mechanism 11 is covered by a protective casing 155 disposed in the front-rear direction.

The planting frame 18 is a part of the planting portion 17 and is a structure forming a skeleton of the planting portion 17. The planting frame 18 is provided with a lifting link mechanism 11 from the rear of the body frame 12, and is disposed in front of the body frame 12. The planting frame 18 is mainly constituted by a main planting frame 181, a side planting frame 182, and a lateral planting frame 183.

As shown in FIGS. 1 to 5, the main planting frame 181 is formed by bending a bar member or the like into a polygonal shape in which the rear portion and the lower portion are open in side view, and is spaced apart from the left and right body widths. A short interval is arranged to be a pair of left and right. When described in detail, the main planting frame 181 is formed such that one end thereof is located above and below the rear portion of the planting portion 17. The rear inclined portion 18a is formed so as to be from the rear end of the main planting frame 181 toward the front upper side so as to be front high and low. Further, at the upper portion of the planting portion 17, a horizontal portion 18b is formed. As seen from the front portion of the horizontal portion 18b, the front upper inclined portion 18c is formed in such a manner that the front upper portion is front low and rear high. The front lower inclined portion 18d is formed such that the lower portion of the front upper inclined portion 18c faces the center of the planting portion 17 so as to be front high and low. Then, the other end of the main planting frame 181 is formed in a lower portion before the planting portion 17.

The side planting frames 182 are disposed in the vertical direction and the front-rear direction of the left and right main planting frames 181 and 181. Horizontal planting frames 183, 183 are laterally disposed between the left and right main planting frames 181, 181.

According to this configuration, the planting frame 18 has a space formed therein, and various planting devices to be described later can be disposed in the space. Further, the main planting frames 181, 181 can be covered by the cover member 171 to cover the left and right outer sides thereof. The inside of the main planting frames 181 and 181 is disposed such that the annular body cover 172 protrudes inward.

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

The traveling portion 14 is constituted by a pair of right and left crawlers 140 and 140, and the power from the driving unit 13 is transmitted through a transmission case 141, whereby the planting machine 1 can be moved.

The operation operation unit 15 is disposed at the center portion before and after the body frame 12, and can operate the traveling portion 14 and the planting portion 17. The operation operation unit 15 is an operation column in which the seats 151 and 151 for the operator are seated, and a plurality of operating levers for operating the traveling portion 14 and the planting portion 17 are disposed. 152 and so on.

The seat 151 is located in front of the engine 131 and is placed on the left and right sides of the body frame 12. The seats 151 and 151 are disposed such that the seated surface is low in front and high in height, so that the operator can easily insert the seed ball into the seed ball holder 21 (see FIG. 8) which will be described later. Specifically, as shown in FIG. 2, the front portion of the seat portion (the seated surface) of the seat 151 can be supported by the pivot shaft that is axially centered in the left-right direction, and the lower rear portion abuts against the support rod 151a. Upper end. The support rod 151a is formed with a thread groove on its side surface, and is screwed in the vertical direction with respect to the body frame 12. Thus, by rotating the support rod 151a, the height of the upper end of the support rod 151a can be adjusted, and the inclination of the seated surface of the seat 151 can be adjusted. In other words, the operator who is seated can be adjusted to tilt forward, and the inclination angle of the seat surface of the seat 151 can be adjusted in accordance with the physique of the operator or the ease of work. However, it is also possible to form a configuration in which an engagement member capable of changing the engagement height or a stopper having a different height is disposed instead of the support rod 151a, and the configuration is not limited as long as it is a height that can be changed.

The operation tower 152 is disposed in the vicinity of the circumference of the seat 151. However, in the present embodiment, the operation tower 152 is disposed on the right oblique front side of the seat 151 on the right outer side of the machine body. It is configured to perform an opening/closing or shifting operation of the power to the traveling portion 14 and an opening/closing operation of the power to the planting portion 17 by an operation of operating the lever or the like of the tower 152.

The operation tower 152 is formed in a box shape. Above the operation tower 152, a clutch lever, a travel clutch lever, a side clutch lever, a plant height automatic adjustment switch, and a walking direction automatic adjustment switch are disposed. Behind the operation tower 152, an engine stop switch, a planting lift switch, a planting section drive switch, and the like are disposed. In the present embodiment, the traveling shift lever that shifts the traveling speed of the planter 1 is disposed on the right side surface below the right seat 151.

The seed ball replenishing portion 19 shown in Figs. 1 and 2 is for temporarily storing a seed ball for replenishing the holding opening means 2 to be described later. The seed ball replenishing unit 19 is mainly constituted by a supply tank 191 and an auxiliary supply tank 192.

The supply tank 191 is a container for which the seed ball G inserted into the holding means 2 of the planting portion 17 can be temporarily accommodated before insertion.

The supply tank 191 is formed into a substantially gutter-shaped container which is slightly shorter than the left and right widths of the planting portion 17, and has an upper portion open and closed at both left and right ends. The left and right side portions of the supply tank 191 are fixed to the inner side behind the rear inclined portion 18a of the main planting frame 181, and the rear end of the annular body cover 172.

The auxiliary supply tank 192 is for supplying a new seed ball G to the supply tank 191. The auxiliary supply tanks 192 and 192 are disposed on the upper and lower cover members 171 and the upper surface cover member 172 as a pair of right and left. The auxiliary supply tank 192 is mainly constituted by the housing portion 193, the induction portion 194, and the partition plate 195.

The accommodating portion 193 is a container having an open upper substantially box shape and is used for storing the seed ball G. The accommodating portion 193 is fixed to the upper surface of the lid member 171 and the annular body lid member 172 by means of a sandwich mounting member (not shown). The side of the holding hole portion 2 of the accommodating portion 193 is disposed so as to be substantially at the same position in the left-right direction. The outer side of the housing portion 193 is disposed to protrude more than the outer side surface of the cover member 171. The rear portion of the accommodating portion 193 is disposed so as to protrude rearward and downward to the front and rear portions of the rear inclined portion 18a along the upper surface of the inclined portion 18a and the annular body cover 172 along the lid member 171 and the main planting frame 181. An opening is formed on the side of the holding opening means 2 at the rear portion of the protruding portion.

The inducing 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 tank 192. The induction portion 194 is fixed to the upper surface of the annular body cover 172 and the rear inclined portion 18a behind the accommodating portion 193. One end (upper end) of the inducing portion 194 is connected to the opening of the housing portion 193. The other end (lower end) of the inducing portion 194 is disposed above the right and left end portions of the supply tank 191. The other end of the induction portion 194 is formed with an opening portion on the side of the supply tank 191.

The partition plate 195 is for preventing the clogging of the seed ball G in the passage of the inducing portion 194. The partition plate 195 is configured by a plate-like member having substantially the same width as the left and right of the induction portion 194. The partition plate 195 is disposed above the induction portion 194 such that the passage cross section in the induction portion 194 is increased as it goes from the upstream side to the downstream side in the supply direction of the seed ball G. Further, the partitioning plate 195 is formed such that its upper end portion is bent toward the upper surface of the induction portion 194 and further attached to the upper surface.

With this configuration, the cross section of the passage closer to the downstream side than the upstream side of the induction portion 194 is increased, and the seed ball G is easily supplied to the supply tank 191.

In the above configuration, the operator takes out the seed ball G in the supply tank 191 by hand and inserts it into the holding opening means 2. In addition, since the supply tank 191 is configured to be connected to the left and right, the seed ball G in the supply tank 191 on the left and right sides is easily turned to the side when the seed ball G in the front side of the operator on the left and right sides becomes empty. Move and add the seed ball G.

Further, when the seed ball G at the end of the supply tank 191 is reduced, the seed ball G can be supplied from the accommodating portion 193 of the auxiliary supply tank 192 via the inducing portion 194 and by the weight of the seed ball G toward the supply tank 191. . Therefore, the operator can reduce the shortage of the seed ball G in the supply tank 191, and the planting operation can be stopped, and the planting operation can be performed efficiently.

Further, when the seed ball G in the supply tank 191 and the auxiliary supply tank 192 is not changed, the seed ball G can be replenished from the basket 153 behind the seat 151 to the supply tank 191 and the auxiliary supply tank 192.

Further, a second auxiliary supply tank 392 may be provided as another embodiment instead of the auxiliary supply tank 192 of the present embodiment. As shown in FIGS. 3 and 4, the second auxiliary supply tank 392 is mainly constituted by the housing portion 393, the induction portion 394, and the partition portion 395. The basic structure of the housing portion 393 and the inducing portion 394 is the same as the housing portion 193 of the auxiliary supply tank 192. The accommodating portion 393 is fixed so as to be able to support the bolts 393a and 393a of the partitioning portion 395, which will be described later, at a predetermined interval in the vertical direction and to protrude rearward and downward in the lower rear inclined surface. The inducing portion 394 is formed with an insertion hole 394a on the side surface of the machine body in the vicinity of the mounting portion of the housing portion 393.

The partition portion 395 is formed as a door structure, and specifically, is formed by bending a plate-shaped member so as to have a partition plate 395a and a handle plate 395b which is formed at a right angle with respect to the partition plate 395a. In the partition plate 395a, long holes 395c and 395c having the left and right directions as long sides are formed with the upper and lower intervals corresponding to the bolts 393a. The partition plate 395a can be inserted into one end (inside of the body) into the insertion hole 394a of the induction portion 394. The long holes 395c, 395c can be fixedly separated by being fitted to the bolts 393a, 393a formed in the accommodating portion 393 and fastened by the nuts 393b, 393b and along the lower slope of the accommodating portion 393. Board 395a.

Therefore, in the state in which the nuts 393b and 393b are loosened, the operator slides the bolts 393a and 393a on the long holes 395c and 395c while holding the handle plate 395b, and moves the partition plate 395a in the left-right direction. This adjusts the internal passage cross section of the upper portion of the inducing portion 394. By fastening the nuts 393b, 393b by the operator, the partition plate 395a can be fixed to the rear side of the housing portion 393 at a desired position.

With this configuration, the cross section of the passage closer to the downstream side than the upstream side of the induction portion 394 is increased, and the seed ball G is easily supplied to the supply tank 191.

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

The driving force from the engine 131 can be transmitted to the transmission case 141 by a pulley, a belt, and a transmission shaft belonging to the power transmission mechanism. The power transmitted to the transmission case 141 is shifted in the transmission case 141, and then transmitted to the traveling wheels 268 and 268 via the chain and the sprocket, whereby the crawlers 140 and 140 of the traveling portion 14 can be driven to travel.

Next, the transmission of the driving force to the planting portion 17 will be described using FIG. 1 and FIGS. 5 to 7.

The driving force from the engine 131 is transmitted to the planting input shaft 365 while shifting and changing the power transmission direction by a power transmission mechanism such as a transmission shaft, a gear, a pulley, and a belt (not shown) before the engine 131 ( Refer to Figure 5).

The planting input shaft 365 is rotatably supported by the rear portion of the planting frame 17 on the left side of the planting portion 17 in front of the operation operation portion 15.

A drive sprocket 40 of the first planting transmission mechanism 16a that transmits power to the pushing means 4 (refer to Fig. 12) is fixed to the middle of the planting input shaft 365.

On the other hand, at the left end of the planting input shaft 365, the drive sprocket 30 of the second planting transmission mechanism 16b that transmits power to the annular body 3 is fixed.

In other words, the power for planting the input shaft 365 can be simultaneously transmitted to the first planting transmission mechanism 16a and the second planting transmission mechanism 16b disposed in front of it.

As shown in FIGS. 5 and 6, the first planting transmission mechanism 16a is mainly driven by the drive sprocket 40, the follower sprocket 41, the tension sprocket 42, the push drive sprocket 43, the drive chain 44, and the push drive. The shaft 45 is formed.

A drive sprocket 40 is fixed to the middle of the planting input shaft 365. Above the planting input shaft 365 (above the planting portion 17), an ejection drive shaft 45 that is slightly shorter than the left and right widths of the planting portion 17 is disposed. The drive shaft 45 is rotatably supported to the left and right of the planting frame 18. At the left end of the push drive shaft 45, a push drive sprocket 43 is fastened. The follower sprocket 41 is disposed above the drive sprocket 40, and the tension sprocket 42 is disposed below the drive sprocket 43.

An annular drive chain 44 is wound around the drive sprocket 40, the follower sprocket 41, the tension sprocket 42, and the push drive sprocket 43. However, the follower sprocket 41 is engaged with the outer circumference of the drive chain 44, and the tension sprocket 42 is engaged with the inner circumference of the drive chain 44. Thus, the drive chain 44 maintains moderate tension and prevents sagging between the push drive sprocket 43 and the drive sprocket 40.

Thus, power can be transmitted to the push drive shaft 45 from the implant input shaft 365 via the drive sprocket 40, the drive chain 44, and the push drive sprocket 43. Between the push drive sprocket 43 and the push drive shaft 45, a clutch to be described later is disposed, and the transmission of power can be restricted by the action of the clutch. Then, the power transmitted to the drive shaft 45 is driven by the crank drive unit 5 to operate the push-out means 4 (see FIG. 13).

The second planting transmission mechanism 16b is mainly driven by the drive sprocket 30, the rotating shaft 31, the follower sprocket 31a, the follower sprocket 31b, the tension sprocket 34, the annular body drive sprocket 32, and the annular body drive shaft. 33. The transmission chain 30a, 32a is formed.

At the left end of the planting input shaft 365, a drive sprocket 30 is fixed. Below the planting input shaft 365 (below the rear portion of the planting portion 17), a rotating shaft 31 is disposed. The rotating shaft 31 is rotatably supported at both ends of the planting frame 18 on the left side. On the right end of the rotating shaft 31, a follower sprocket 31a is fixed, and on the left end of the rotating shaft 31, a follower sprocket 31b is fastened.

An annular transmission chain 30a is wound around the drive sprocket 30 and the follower sprocket 31a. Below the follower sprocket 31a (above the planting position 17b), an annular body drive shaft 33 is disposed. The annular body drive shaft 33 is rotatably supported by the right and left planting frames 18.

An annular body drive sprocket 32 is fixed to the left end of the annular body drive shaft 33. The lower end of the tension arm 34a is rotatably supported on the annular body drive shaft 33 on the right side of the annular body drive sprocket 32. At the upper end of the tension arm 34a, a rotating shaft 34b is fixed to protrude to the left. At the right end of the rotating shaft 34b, the tension sprocket 34 is rotatably supported. An annular drive chain 32a is wound around the following sprocket 31b, the annular drive sprocket 32, and the tension sprocket 34. The tension arm 34a is configured to be biased by a spring (not shown) and to apply tension to the transmission chain 32a.

Therefore, the power for planting the input shaft 365 can be transmitted to the rotating shaft 31 through the drive sprocket 30, the transmission chain 30a, and the follower sprocket 31a. Then, the power of the rotating shaft 31 can be transmitted to the annular body drive shaft 33 via the follower sprocket 31b, the transmission chain 32a, the tension sprocket 34, and the annular body drive sprocket 32.

Further, as shown in FIGS. 5 to 7, the annular body drive shaft 33 is attached to both inner sides of the main planting frame 181, and the inner annular body drive sprockets 35, 35 are fixed. The left and right annular body follower sprockets 36, 37, 38, and 39 are disposed so as to form a predetermined space in the side view. The annular body 3 composed of an endless chain or the like is wound around the left and right annular body follower sprockets 36, 37, 38, and 39. Since the annular body 3 is arranged to be bilaterally symmetrical, the following description will mainly be made on the left side.

Further, the planting position 17b is a position where the seed ball G is planted in the field, and is placed at the lowermost portion of the planting portion 17.

The lower annular body follower sprocket 39 and the inner end of the rear inner ring drive sprocket 35 are arranged side by side in the horizontal direction. Further, a guide member 174 is disposed at a lower portion of the planting portion 17, so that the rotation of the annular body 3 wound around the annular body follower sprockets 36, 37, 38, 39 can be performed. The opening means 2 is kept moving substantially horizontally to the rear. The guide member 174 is configured to be guided by a roller 29 that holds the opening means 2 to be described later.

In this manner, the annular body 3 can be wound between the replenishing position 17a and the planting position 17b, and the opening means 2 can be held in such a manner that, in addition to the replenishing position 17a, the insertion direction can be turned to the vertical direction. The composition of the rotary drive. Therefore, the inner annular body drive sprocket 35 is disposed so as to be stretched and driven at the rear side of the planting position 17b, and the annular body 3 is rotationally driven. In other words, the annular body 3 of the planting position 17b is in a state of being stretched at the time of the planting operation, and is not slack, and can travel and be accurately planted in synchronization with the crank drive unit 5. Then, the seed ball G holding the opening means 2 does not swing largely, and is not shaken off, and can be reliably carried from the supply position 17a to the planting position 17b.

The annular body 3 is formed of a chain or the like as described above, and is stretched so as to have a polygonal shape (pentagon shape) when viewed from the inside of the planting frame 18. In detail, the annular body 3 is wound around an inner annular body drive sprocket 35 as a rotation support portion, and each annular body follower sprocket 36, 37, 38, 39. The inner annular body drive chain The pair of left and right wheels 35 are respectively disposed on the left and right inner sides of the planting frame 18 so as to be viewed from the top side in a polygonal shape as viewed from the side. Between the left and right annular bodies 3, the means for maintaining the opening 2 is transversely arranged in the left-right direction at predetermined intervals in the direction of rotation of the annular body 3.

Then, as shown in Fig. 2 and Fig. 5 to Fig. 7, the replenishing position 17a is disposed so as to be inclined at a predetermined angle from the front height to the rear, and the seed ball G can be easily moved before the operation operation portion 15 is moved. The opening means 2 is replenished (inserted). That is, the upper annular body follower sprocket 37 is disposed at the uppermost portion of the center portion before and after the planting portion 17. The height of the upper ring-shaped follower sprocket 37 is set to be lower than the height of the eye of the operator, higher than the knee, and to form the height of the shoulder in order to ensure the front view.

The height of the rear annular follower sprocket 36 disposed below the upper annular body follower sprocket 37 is higher than the pedal 12a and lower than the operator's chest, and forms the seat of the seat 151. The degree of height of the face. In this manner, the annular body 3 stretched between the upper annular body follower sprocket 37 and the inner annular body drive sprocket 35 is inclined to be high and then lowered, and is disposed at the supply position 17a.

The replenishment position 17a is placed in front of the seat 151 and is disposed in a range reachable by the operator's hand seated in the seat 151. The replenishment position 17a, in detail, is disposed between the upper annular body follower sprocket 37 and the rear annular follower sprocket 36 so that the annular body 3 is inclined at a predetermined angle to be high and low. The inner ring-shaped driving sprocket 35 is disposed on the planting frame 18 so as to move the holding opening means 2 obliquely forward and upward while maintaining the angle. That is, under the annular body 3 between the upper annular body follower sprocket 37 and the rear annular follower sprocket 36, a plate-like guide that defines the front-rear direction as the longitudinal direction is disposed. Member 173. The guiding member 173 is fixed to the planting frame 18 so as to be parallel to the annular body 3. The guide member 173 is guided by the roller 29, which will be described later, on both sides of the holding opening means 2, and is guided by the seed ball insertion surface of the seed ball holder 21 toward the operator side. The way the front upper moves. In the replenishing position 17a, the holding opening means 2 of the plurality of rows (three rows in the present embodiment) are arranged in parallel, and how much margin is provided in the replenishment time of the seed ball G, even if the replenishment timing is missed. Can be easily corrected.

In this way, the operator can work by feeding the seed ball G to the holding hole opening means 2 to be described later while holding the seat 151, and can reduce fatigue and improve work efficiency.

In the above-described annular body drive sprocket 32, the planting interval (sapling) P of the seed ball G can be changed by changing the diameter (number of teeth). In other words, if the diameter of the annular body drive sprocket 32 becomes large (the number of teeth increases), the planting interval P becomes long, and if the diameter thereof becomes small (the number of teeth decreases), the planting interval P becomes short.

The operator can select the desired planting interval P by changing the annular body drive sprocket 32. However, it is also possible to form a shifting mechanism in which the ring-shaped driving sprocket 32 is disposed with or without a segment. Further, in this case, it is preferable that the shifting mechanism having one or no stages can easily perform the shifting operation by the operation of the lever or the like.

Next, the planting portion 17 driven by the above-described power transmission mechanism will be described.

The planting unit 17 is disposed in front of the planter 1 in order to plant the seed ball G in the field. The planting portion 17 in the present embodiment is mainly constituted by a planting frame 18, a holding device 2 for arranging the inside of the planting frame 18, and a planting device such as the pushing means 4.

Next, the configuration of each planting device of the planting portion 17 disposed in the planting frame 18 will be described using a drawing.

Each of the planting devices of the planting portion 17 is mainly constituted by a holding opening means 2, a pushing means 4, and the like which are disposed on the annular body 3.

As shown in Fig. 1 and Fig. 7 to Fig. 12, the means for maintaining the opening means 2 is a means for opening a hole in the cover paper 10 when the seed ball G reaches the planting position 17b while holding the seed ball G. In the present embodiment, the holding means is a holding opening means 2 having an opening means for forming an opening portion in the cover paper 10. However, if the opening means is provided or the opening is provided in the cover paper, the holding means may be provided as long as it can be transported to the planting position 17b while holding the seed ball G. The opening means 2 is mainly constituted by the casing 23, the plurality of seed ball holders 21 and the opening body 26.

The casing 23 is a box-shaped structure in which the left and right directions are regarded as long sides and can be vertically divided. In the upper and lower sides of the casing 23, a plurality of upper and lower openings 23a are formed in a plurality of upper and lower portions (four in the upper and lower portions in the present embodiment). The insertion and discharge of the seed ball G can be performed.

On the lower side of the opening portion 23a above the casing 23, a seed ball holder 21 having an insertion hole for the seed ball G and holding the seed ball G is fixed. Further, the opening body 26 is disposed on the casing 23 below the seed ball holder 21.

The seed ball holder 21 has a plurality of rectangular holding plates (a first holding plate 211, a second holding plate 212, and a third holding plate 213) and a plurality of rectangular opening plates 214. The seed ball holder 21 is formed by aligning the center and the direction and adhering the holding plate and the opening plate 214 one by one. In detail, the seed ball holder 21 is from the top according to the first holding plate 211, the perforated plate 214, the second holding plate 212, the perforated plate 214, the third holding plate 213, the perforated plate 214, and the first The order of the holding plates 211 coincides.

The aperture plate 214 is composed of an elastomer plate such as urethane, and has an opening portion 214a having a diameter larger than that of the seed ball G and passing through the seed ball G substantially at the center thereof. At the four corners of the perforated plate 214, a bolt hole 214b is opened, and the bolt can be inserted through the bolt hole 214b.

The holding body (the first holding plate 211, the second holding plate 212, and the third holding plate 213) is made of an elastic plate such as rubber. In the first holding plate 211, a first insertion hole 211a having a smaller diameter than the seed ball G is formed substantially at the center thereof. The second holding plate 212 is formed at a substantially central portion thereof with a second insertion hole 212a having a diameter smaller than that of the seed ball G and larger than the first insertion hole 211a of the first holding plate 211. The third holding plate 213 is formed substantially the same as the opening portion 214a of the opening plate 214 or is smaller in diameter than the opening portion 214a and larger in diameter than the second insertion hole 212a of the second holding plate 212. The third insertion hole 213a. In other words, the diameters of the respective insertion holes 211a, 212a, and 213a become larger in the order of the first insertion hole 211a, the second insertion hole 212a, and the third insertion hole 213a. Therefore, the holding body is formed larger than the opening of the holding plate which is closer to the intermediate layer by the upper and lower outermost layers formed by the first holding plates 211 and 211 disposed on the upper and lower sides, and will be larger than the second. The second insertion hole 212a of the holding plate 212 is further formed closer to the opening area of the third insertion hole 213a of the third holding plate 213 on the lower side thereof.

In each of the holding bodies 211, 212, and 213, a plurality of slits 211b, 212b, and 213b are radially formed from the respective insertion holes 211a, 212a, and 213a in the radial direction. More specifically, cracks 211b, 212b, and 213b are formed in the vertex direction of the polygonal holder 73 which will be described later. A holding portion (a first holding portion 211d, a second holding portion 212d, and a third holding portion 213d) is formed between the slits 211b, 212b, and 213b and the slits 211b, 212b, and 213b, respectively.

These cracks 211b, 212b, 213b, ... are formed at equal angles in the circumferential direction with respect to the respective insertion holes 211a, 212a, and 213a, and are formed in six in the radial direction. All of the holding plates 211, 212, and 213 are disposed such that the number and direction of the respective slits 211b, 212b, and 213b coincide with each other. Further, the holding plates 211, 212, and 213 are formed with bolt holes 211c, 212c, 213c, ... in a position to be aligned with the bolt holes 214b in a state of being bonded to the perforated plate 214.

With such a configuration, as shown in Fig. 10(a), the seed ball G is first inserted into the first insertion hole 211a, and the first holding portion 211d near the first insertion hole 211a is pushed downward. As shown in Fig. 10(b), the seed ball G can be guided to the second holding portion 212d by the first holding portion 211d. Further, as shown in Fig. 11(a), the seed ball G pushes down the first holding portion 211d and the second holding portion 212d which are adjacent to the first insertion hole 211a and the second insertion hole 212a. As shown in Fig. 11(b), the seed ball G is guided to the holding plate 213. Then, the outermost portion of the seed ball G comes into contact with the third holding portion 213d to stabilize the posture. Further, the seed ball G has a lower portion that abuts against the upper surface of the first holding portion 211d disposed at the lowermost portion.

Here, the third holding portion 213d is in a state of being substantially in contact with the seed ball G. Therefore, the operator who inserts the seed ball G into the seed ball holder 21 is held or placed on the lowermost first holding portion 211d by easily inserting the seed ball G to the extent that a small resistance is felt. By the holding by the contact of the seed ball G and the holding portions 211d, 212d, and 213d, the operator can insert a feeling to confirm that the seed ball G has reached the holding space that can be held in a stable state.

By increasing the size of the insertion hole above and below the seed ball holder 21, it is easy to insert and ensure (small resistance) moderate retention.

Thus, the position of the seed ball G can be easily grasped, and the seed ball G can be uniformly inserted into the seed ball holder. Moreover, since the seed ball G can be inserted under the seed ball holder 21, there is no holding portion that abuts against the lower end of the seed ball G, so that the operator can further move the seed ball holder 21 downward. Insertion, the seed ball is placed on the first holding portion 211d disposed at the lowermost position. In other words, the operator is able to confirm with the feeling whether the seed ball can be inserted into the predetermined position. Thus, the seed ball G can be planted in the field in an appropriate posture.

The holding opening means 2 includes holding plates 211, 212, and 213 which are formed with insertion holes 211a, 212a, and 213a at the center, and which are aligned with the holding body 73 from the insertion holes 211a, 212a, and 213a. Cracks 211b, 212b, and 213b are formed in the apex of the angular shape; and an apertured plate 214 is formed in the center with an opening portion 214a larger than the seed ball G, and the insertion holes 211a, 212a, 213a and the opening are formed. The center of the hole portion 214a is formed to coincide with each other and alternately overlaps the plurality of holding plates 211, 212, 213 and the opening plate 214, and the insertion holes 212a and 213a of the holding plates 212 and 213 disposed at the center in the vertical direction are configured. The insertion holes 211a of the holding plates 211 disposed on the upper and lower sides are also larger.

Since the apex of the holding body 73 coincides with the slits 211b, 212b, 213b of the holding plates 211, 212, 213, the seed ball G can be held in an appropriate posture and can be surely planted. In other words, the seed ball G is substantially triangular in plan view, and the apex of the seed ball G can be held in conjunction with the slits 211b, 212b, 213b of the holding plate 211. Therefore, when the guide member (holding body 73) of the pushing means 4 is pushed out, the state of the holding does not change and can be held by the holding body 73. As a result, the direction of the bud (germination point G1) of the seed ball G at the time of ejection does not shift or fall, but can be surely maintained and planted.

Further, the insertion holes 212a and 213a of the holding plates 212 and 213 of the intermediate layer in the vertical direction are formed to be larger than the insertion holes 211a and 211a on the upper and lower sides. Therefore, the excessive friction caused by the seed ball G and the holding plates 211, 212, 213 can be alleviated as compared with the formation of the insertion holes of the same size, and the insertion holes 211a, 212a of the holding plates 211, 212, 213 can be The seed ball G is moderately maintained on the inner surface of 213a. Therefore, when the operator inserts the seed ball G into the holding opening means 2, no large friction is generated, and the seed ball can be easily inserted without damaging the seed ball. Further, the seed ball G can be held in a posture suitable for maintaining the opening means 2, and the seed ball G can be planted in the field in an appropriate posture by the pushing means 4.

The insertion holes 212a and 213a of the holding plates 212 and 213 of the intermediate layer disposed between the holding plates 211 and 211 disposed on the upper and lower sides are formed closer to the lower side.

Since the insertion holes 212a, 213a of the holding plates 212, 213 of the intermediate layer form an opening area on the lower side (discharge side) larger than the opening area on the upper side (insertion side), the internal space can be formed as it approaches It becomes bigger on the lower side. Therefore, when the operator inserts the seed ball G, the front surface of the holding plate near the lowermost side may be reduced or reduced due to the new resistance caused by the holding plates 212, 213, due to the lowermost holding plate 211. Feel new resistance again. Therefore, it is easier for the operator to grasp the insertion position of the seed ball G in the holding opening means 2. Then, the seed ball G can be inserted into the holding opening means 2 in an appropriate posture while being held by the holding plates 211 and 211 disposed on the upper and lower sides with a moderate force, so that the pushing means 4 can be used by the pushing means 4 Proper posture is planted in the field.

As shown in FIG. 2 and FIG. 7 to FIG. 12, the perforated body 26 is formed by bending the four plate members into an inverted L shape as viewed from the side, and arranging one side rotatably on the opening and closing drive unit 24. The other side thereof protrudes downward, and is formed in a pointed shape so that the front end of the other side can be easily spurted to cover the paper 10 and form an opening portion.

The opening and closing actuator 24 for opening and closing the driving opening body 26 is configured by a link mechanism and disposed between the seed ball holder 21 and the opening body 26. The drive arm 25 is rotatably coupled to both sides of the opening and closing drive unit 24. The outer end of the driving arm 25 is configured to be pushed to the inner side, thereby opening the opening body 26.

Further, on the side of the drive arm 25 on the inner side of the lower portion of the planting frame 18, a cam body (not shown) is provided in the front-rear direction. The cam body is formed to protrude inwardly, so that the outer end of the driving arm 25 abuts and rotates due to the abutting end of the driving arm 25, whereby the opening body 26 forms an opening in the cover paper 10. unit.

In other words, in a state where the outer end of the driving arm 25 abuts against the cam body, the front end portion of the opening body 26 is located around the opening portion 23a, and the opening body 26 is opened. In a state where the driving arm 25 does not abut against the cam body and the driving arm 25 protrudes outside the casing 23, the front end of the opening body 26 is located at the center of the opening portion 23a, and the opening body 26 becomes Closed state.

Therefore, by piercing the front end of the four opening bodies 26 after the cover paper 10 and rotating outward from the center of the opening portion 23a, an opening portion having a predetermined size can be formed at a predetermined position of the cover paper 10.

Support shafts 27 and 27 are disposed on the upper left and right sides of the casing 23 so as to protrude outward. On the outer circumference of the support shafts 27 and 27, a mounting plate 28 having an L-shaped side view is rotatably attached. One of the mounting plates 28, 28 is mounted on the outer circumference of the annular bodies 3, 3.

Thus, the opening means 2 can be oscillated and supported at a position other than the replenishing position 17a and the planting position 17b with the support shaft 27 as the center, and the insertion axis of the seed ball holder 21 can be weighted by itself. It is transported (moved) while being turned to the vertical direction.

The lower portions on the left and right sides of the casing 23 are disposed so as to be rotatably protruded by the rollers 29 and 29 at predetermined intervals in the front-rear direction. In the supply position 17a and the planting position 17b, the conveyance posture can be restricted by the respective guide members 173 and 174 (see FIG. 7) arranged in parallel with the annular body 3. In other words, the seed ball holder 21 and the opening body 26 are conveyed in a state where the supply position 17a is inclined by a predetermined angle, and are carried in parallel with the field ground at the planting position 17b.

Next, the means 4 will be described using Figs. 5 to 7 and Figs. 13 to 15.

The pushing means 4, by holding the opening body 26 of the opening means 2, immediately after the opening portion is formed in the field covered by the covering paper 10, pushes the seed ball G held by the holding opening means 2 downward. The method of pressing and seeding the seed ball G on the field under the opening portion of the cover paper 10. The push-out means 4 is mainly constituted by the crank drive unit 5, the swing portion 6, the planting and ejecting portion 7, the guide portion 8, and the engaging portion 9.

The crank drive unit 5 transmits the driving force of the first planting transmission mechanism 16a disposed on the left side of the planting portion 17 to the planting and ejecting unit 7. The crank drive unit 5 is mainly constituted by a clutch, a turning arm 53, a follower arm 54, a connecting arm 55, and an upper rod supporting body 56. The crank drive shafts 5 are respectively disposed on the left and right outer sides of the side planting frame 182 (see FIG. 2) of the planting portion 17, and are disposed so as to be a pair of left and right. The clutch is composed of an electromagnetic solenoid 50, an engagement lever 51, and an engaging body 52.

The push-out drive sprocket 43 of the first planting transmission mechanism 16a is an intermediate clutch (more specifically, the engaging body 52) and is coupled to the push-out drive shaft 45. In other words, the engaging body 52 is formed by a spring clutch that is externally fitted to the push-out drive shaft 45 and an engaging disk that is engaged with one end of the spring clutch, and a protrusion is provided on the outer circumference of the engaging disk, and the protrusion is formed. It can be engaged with the engagement lever 51 disposed at the rear thereof. In this way, by engaging the engaging body 52 with the engaging lever 51, the transmission of the power from the push-out drive sprocket 43 toward the push-out drive shaft 45 can be broken, and the drive can be pushed out by releasing the engagement. The sprocket 43 transmits power to the push drive shaft 45. Further, the engagement lever 51 is coupled to a piston serving as an operating body of the electromagnetic solenoid 50 as an actuator disposed in the vicinity thereof. When the electromagnetic solenoid 50 is actuated, the piston is contracted and the engaging lever 51 is rotated, so that the engagement of the engaging lever 51 and the engaging body 52 can be released and the power can be transmitted. The electromagnetic solenoid 50 is controlled by the on/off of the stopper switch in the vicinity of the planting position 17b (not shown) (the stopper opening and closing relationship detects whether or not the opening means 2 has reached the predetermined position).

At the left and right ends of the drive shaft 45, one end of the rotating arm 53 is fixed. At the other end of the turning arm 53, one end (inner side) of the rotating shaft 54a is provided. One end of the follower arm 54 is rotatably disposed at the other end (outer side) of the rotation shaft 54a. At the other end of the follower arm 54, a through hole is opened. One end (outer side) of the connecting shaft 54b is provided in the through hole. The other end (inner side) of the connecting shaft 54b is rotatably supported by the upper portion of the connecting arm 55.

In detail, in the upper portion of the connecting arm 55, opening adjustment holes 55a, 55a, 55a are provided, and at the other of the adjusting holes 55a, 55a, 55a, the other end of the connecting shaft 54b is provided (inside ). The upper rod supporting body 56 is horizontally disposed at the lower portion of the left and right connecting arms 55.

The upper rod support body 56 supports the planting and pushing body 70 from the upper portion, and transmits the upper and lower movements of the crank driving portion 5 to the planting and pushing body 70. The upper rod support 56 is a plate body which is slightly shorter than the left and right widths of the planting portion 17. The planting and pushing body 70 of the planting and pushing portion 7 to be described later is attached to the upper rod supporting body 56 at a predetermined interval (the same number and the same position as the seed ball holder 21) in the left-right direction. Further, on the left and right sides of the upper rod support 56, cylindrical sliding bodies 57 and 57 having openings in the vertical direction are disposed, and the swing connecting bodies 62 and 62 of the swinging portion 6 which will be described later are arranged in the vertical direction. Sliding and fitting.

Further, the length adjusting mechanism of the crank driving unit 5 is configured such that the connecting shaft 54b is formed in any one of the adjusting holes 55a, 55a, and 55a of the connecting arm 55, whereby the length closer to the lower side than the connecting shaft 54b can be changed. . In other words, by changing the upper and lower lengths of the connecting arm 55, the connecting length of the connecting arm 55 and the connecting rod (the connecting rod formed by the rotating arm 53, the rotating shaft 54a, the follower arm 54, and the connecting shaft 54b) can be adjusted. The amount of movement up and down, and the lifting distance of the crank drive portion 5 can be adjusted. Therefore, the height of the planting and pushing body 70 connected to the rod supporting body 56 on the crank driving unit 5 can be changed, and the planting depth of the seed ball G can be easily changed to a desired depth. Therefore, as shown in Fig. 15(a), the entire length of the crank drive portion 5 becomes the longest by the connection shaft 54b being disposed at the uppermost adjustment hole 55a, and the lower end position of the implant pusher 70 is located. At the bottom, the depth of planting becomes the deepest. Further, as shown in Fig. 15(c), the entire length of the crank drive portion 5 becomes the shortest by the connection shaft 54b being disposed at the lowermost adjustment hole 55a, and the lower end position of the implant pusher 70 is located. At the top, the planting depth becomes the shallowest.

Next, the swinging portion 6 will be described using Figs. 7 and 12.

The swinging portion 6 is for synchronizing and supporting the planting and pushing portion 7 in synchronization with the movement before and after the opening of the opening means 2. The swing portion 6 is mainly constituted by the rotation of the fulcrum shaft 60, the traverse body 61, the oscillating joint body 62, and the lower rod support body 63. The swinging portion 6 is disposed directly below the push-out driving portion 45 and is configured to be swingable in the front-rear direction.

The pivot shafts 60 and 60 are disposed directly below the push-out drive shaft 45 so as to protrude inwardly from the upper portions of the left and right side implant frame 182, and are rotatably supported by the side planting frame 182 (refer to 2 picture). In the rotation fulcrum shafts 60, 60, a traverse body 61 is fixed to the lower portion of each of the inner ends.

The traverse body 61 is formed by bending a plate body having a long side in the left-right direction into a substantially inverted concave shape as viewed from the side. The upper ends of the rod-shaped rocking coupling bodies 62 and 62 which have the up-and-down direction as a long side are fastened to the both ends of the both sides of the horizontal direction body 61. At the lower end of the oscillating connecting bodies 62 and 62, both ends of the lower rod supporting body 63 which are substantially parallel to the traverse body 61 and whose left and right lengths are also slightly shorter than the traverse body 61 are fixed. The lower rod support body 63 is formed with an opening support portion 63a that slidably supports the planting and pushing body 70 of the planting and pushing portion 7 to be described later.

As shown in Fig. 13 and Figs. 16 to 19, the planting and pushing portion 7 is for planting the seed ball G held by the holding means 2 to the field. The planting and pushing unit 7 is constructed by planting and pushing the body 70 by a plurality of (four in the present embodiment). The planting and pushing body 70 is disposed such that the space in the main planting frame 181 is spaced apart in the left-right direction by a predetermined interval (the interval between the opening portions 23a of the opening means 2 is maintained). The implant body 70 is mainly composed of a guide member composed of a guide pipe 71 and a retaining body 73, a planting rod 72, and a scraper composed of a first scraper 74a and a second scraper 74b. The plate 74, the first biasing member 75, the mounting member 76, and the sliding member 77 are formed.

The duct 71 is a cylindrical member having a long side in the vertical direction, and its upper end is fixed to the upper rod support 56 through the attachment member 76. The upper and middle portions of the duct 71 are slidably held by the opening support portion 63a of the rod support 63 inserted under the swing portion 6. Further, the lower portion of the duct 71 is slidably held in the vertical direction by the lateral guide 81 of the guide portion 8 which will be described later.

The attachment member 76 is a substantially cylindrical member, and is attached to the upper rod support 56 by being inserted into an opening formed in the up-and-down direction of the upper rod support 56. The inner diameter of the attachment member 76 is formed to be larger than the lower portion, and is formed so that the first elastic member 75 to be described later can be inserted into the upper inner space.

In the duct 71, a planting rod 72 belonging to a bar having a long side in the vertical direction is slidably fitted in the vertical direction. The planting rod 72 is constituted by a bar which is slightly longer than the duct 71. A sliding member 77 is attached to the upper portion of the planting rod 72. The upper end of the sliding member 77 is configured to be able to abut against the lower surface of the contact member 91a that is fixed to the connecting shaft 91 in the left-right direction. The contact member 91a is a plate-shaped member, and is fixed to the connecting shaft 91 at the same interval from the planting and pushing body 70 in the left-right direction so as to be easily abutted against the sliding member 77.

The receiving member 77a is an annular member and is externally fitted to the planting rod 72. The receiving member 77a 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 as to be able to insert the first elastic member 75 to be described later.

The first biasing member 75 is constituted by a compression spring, and is disposed such that a lower end portion thereof is inserted into an inner space above the attachment member 76, and an upper end thereof abuts against a lower surface of the receiving member 77a. In other words, the attachment member 76 and the receiving member 77a are disposed with the length of the first elastic member 75 spaced apart from each other in the vertical direction.

The holder 73 is a member for holding the seed ball G. The holding body 73 is provided at a portion where the planting and pushing body 70 is in contact with the seed ball G, that is, a lower end portion of the duct 71 (end portion on the field side). The holder 73 is mainly constituted by the attachment portion 73a and the contact portion 73b.

The mounting portion 73a is a portion for attaching the contact portion 73b to the lower end portion of the duct 71. The mounting portion 73a is made of a hard material such as metal. The attachment portion 73a is formed in a substantially cylindrical shape that is opened in the vertical direction (the lower side is opened toward the holding opening means 2). The inner diameter of the upper portion of the mounting portion 73a is set to be substantially the same as the outer diameter of the duct 71. The inner diameter of the lower portion of the attachment 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, the inner peripheral surface of the upper portion of the attachment portion 73a is formed in a ring shape so as to extend in the circumferential direction by the groove 73c.

The mounting portion 73a is externally fitted to the lower end portion of the duct 71 and attached thereto.

The contact portion 73b is a portion for holding the seed ball G. The contact portion 73b is made of a soft material such as rubber, and has a substantially cylindrical shape that is opened in the vertical direction (the lower side faces the opening opening means 2), and is formed in a substantially convex shape as viewed from the side. The inner diameter of the upper portion of the contact portion 73b is set to be smaller than the inner diameter of the lower portion of the mounting portion 73a. The outer diameter of the upper portion of the contact portion 73b is set to be substantially the same as the inner diameter of the lower portion of the mounting portion 73a. The outer diameter and the inner diameter of the lower portion of the contact portion 73b are set to be the largest at the lowermost position and the smallest at the uppermost position. Further, the inner diameter of the lower portion of the contact portion 73b is set to be larger than the upper inner diameter and larger toward the lower side in the axial direction. The outer diameter of the lower portion of the contact portion 73b is set to be larger than the upper outer diameter and larger as it goes toward the lower side in the axial direction. In this way, the upper portion of the contact portion 73b is formed into a cylindrical shape having an outer diameter and an inner diameter, and is a reduced diameter portion. The lower portion of the contact portion 73b is formed as an enlarged diameter portion in which the outer diameter and the inner diameter are equal to or larger than the upper outer diameter and the inner diameter, and become smaller toward the upper side in the axial direction.

Further, the inner peripheral cross-sectional shape of the lower portion of the contact portion 73b is such that the inner diameter of the lower portion is not constant on the same plane orthogonal to the axial direction, and the polygonal shape is formed on the bottom surface, and is formed in the present embodiment. Hexagon (positive hexagon). In this way, the inner space of the lower portion of the contact portion 73b is reduced in size toward the upper side in the axial direction, and the square portion having the six side surface portions 73d and the six corner portions (vertices) 73e is observed on the bottom surface. The opening portion (see Fig. 18(a)).

The contact portion 73b is inserted into the lower portion of the mounting portion 73a from below, and is fixed to the lower end portion of the duct 71 by interposing the mounting portion 73a. Here, the lower end portion of the contact portion 73a is disposed to protrude downward from the lower end surface of the mounting portion 73a.

Thereby, the holding body 73 intrudes into the holding opening means 2 from above, and it is easy to hold the upper part of the seed ball G hold|maintained by the seed ball holder 21.

Further, although the inner peripheral cross-sectional shape of the contact portion 73b is hexagonal in the present embodiment, it may be formed in a pentagonal shape, a heptagonal shape, an octagonal shape, or other polygonal shapes, a circular shape, and an elliptical shape. Further, the inner peripheral cross-sectional shape of the contact portion 73b is not limited to the regular polygonal shape.

Further, in order to further strengthen the joining between the contact portion 73b and the attaching portion 73, a ring-shaped projecting portion may be formed so as to protrude outward from the outer peripheral surface of the upper portion of the contact portion 73b, and the projection portion can be fitted. The groove is formed on the inner circumference of the mounting portion 73a.

The moldboard 74 is used for guiding when the planting rod 72 moves in the up and down direction. Among the moldboard 74, the first moldboard 74a is a member for removing adhering matter such as dirt adhering to the front end (lower end) of the planting rod 72. The first moldboard 74a is formed in a ring shape that opens in the vertical direction. The inner diameter of the first moldboard 74a is set to be slightly larger than the outer diameter of the lower portion of the planting rod 72. The outer diameter of the first moldboard 74a is set to be larger than the inner diameter of the upper portion of the planting portion 73a. The upper and lower widths of the first moldboard 74a are set to be smaller than the upper and lower widths of the grooves 73c of the mounting portion 73a.

The first moldboard 74a is inserted into the mounting portion 73a so that the planting rod 72 is inserted into the opening thereof, and the outer peripheral edge portion thereof is fitted into the groove 73c, and is vertically movable in the groove 73c. Sliding mode configuration.

The second moldboard 74b is a member for removing the attachment of the planting rod 72 that has not been removed by the first moldboard 74a. The second moldboard 74b is formed in an annular shape that is opened in the vertical direction, and is formed in a convex shape as viewed from the side. The inner diameter of the second moldboard 74b is set to be substantially the same as the outer diameter of the lower portion of the planting rod 72. The outer diameter of the upper portion (reduced diameter portion) of the second moldboard 74b is set to be substantially the same as the inner diameter of the duct 71. The outer diameter of the lower portion (expanded diameter portion) of the second moldboard 74b is set to be larger than the outer diameter of the upper portion, and is set to be larger than the inner diameter of the duct 71 and smaller than the outer diameter of the duct 71. .

The second moldboard 74b is placed in the attaching portion 73a so that the planting rod 72 is inserted into the opening thereof, and the upper portion thereof is fitted into the lower end of the duct 71, and is disposed so as to be slidable in the vertical direction.

The engaging portion 9 shown in Fig. 13 and Fig. 19 to Fig. 21 is for temporarily restricting the rise of the planting rod 72 and raising the duct 71 when the planting portion 7 is raised after the implantation of the seed ball G is completed. It rises 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 constituted by 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 supporting body 63.

Since the members of the engaging portion 9 are bilaterally symmetrical, only the configuration on the left side will be described.

The upper engaging body 90 is disposed above the left and right planting and pushing portions 7 so as to be disposed on the upper rod supporting body 56 in the vicinity of the sliding body 57 so as to be a pair of right and left. The upper engaging body 90 is mainly constituted by a connecting shaft 91, a first supporting member 92, a second supporting member 93, an upper engaging member 94, a second biasing member 95, a regulating member 96, and the like.

The first support member 92 is formed of a plate-shaped member, and the lower side surface thereof is fixed to the contact member 91a fixed to the connection shaft 91. The first support member 92 penetrates one side of the connection shaft 91, and both sides of the connection shaft 91 are inserted into the long hole 96a of the restriction member 96 to be described later. Further, the regulating protrusion 92a is protruded from the side surface of the inner side of the first supporting member 92, and is disposed so as to be able to abut against the lower side of the upper engaging member 94.

The second support member 93 is configured by a plate-shaped member, and the connection shaft 91 is penetrated and fixed in the upper and lower middle portions thereof, and is disposed in parallel with the first support member 92. A locking projection 93a is protruded from the lower end portion of the second support member 93 toward the outside of the machine body.

The upper engaging member 94 has a front plate and side plates on the left and right sides of the front plate, and is formed by a plate-like member that is bent into a substantially U-shape in plan view. A turning fulcrum shaft 94a is supported through the front and rear of the left and right side plates of the upper engaging 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. In other words, the upper engaging member 94 is disposed between the first supporting member 92 and the second supporting member 93, and is rotatably supported by the first supporting member 92 and the second support centering on the pivot point shaft 94a. Member 93. At the rear portion of the left and right side plates of the upper engaging member 94, an abutting shaft 94b through which the cylindrical collar 94c is disposed is horizontally disposed. A plate is formed with a locking hole 94d in front of the upper engaging member 94.

The second biasing member 95 is constituted by a tension spring, and its upper end is hooked to the locking hole 94d of the upper engaging member 94, and its lower end is hooked to the locking projection 93a. On the other hand, in the first support member 92 and the second support member 93, the restriction protrusions 92a and 93b for restricting the lower portion of the upper engagement member 94 to rotate downward are disposed so as to protrude inside the conventional upper engagement member 94. .

Therefore, the front portion of the upper engaging member 94 can be biased downward in the downward direction (refer to arrow B in Fig. 19) around the pivot point 94a by the second biasing member 95, and by restricting the projections 92a, 93b. The restriction is rotated closer to the lower side than the state shown in Fig. 19.

The restricting member 96 is formed by a plate material having a vertical direction as a long side, and an elongated hole 96a having a vertical direction as a long side is formed in an upper portion thereof. The lower end of the restricting member 96 is fixed to the upper rod support 56 which is closer to the inner side of the body than the slider 57. In the long hole 96a, the left end portion (outer end portion) of the connecting shaft 91 and the pivot point shaft 94a is slidably disposed.

The lower engaging body 290 is disposed in the planting standby state (see FIG. 13) in which the planting and pushing body 70 is located at the uppermost position, and is disposed on the lower rod supporting body 63 below the upper engaging member 94 disposed on the left and right sides. The lower engaging body 290 is mainly composed of a lower supporting member 291, an upper supporting member 292, a lower engaging member composed of a first lower engaging member 293 and a second lower engaging member 294, a pivot point 295, and a third The elastic member 296 is constructed.

The lower support member 291 is configured by using two sheets of the upper and lower sides as the long sides, and the lower ends thereof are fixed to the rear sides of the lower rod support 63 at predetermined intervals from left to right. In the lower support member 291, a plurality of openings are formed by vacating a predetermined interval.

The upper support member 292 is formed of a plate material, and has a substantially U-shape in which the front side is opened in a plan view so as to have a rear plate and side plates on the right and left sides of the rear plate. The upper portion of the upper support plate 292 is notched, and the upper end is formed lower than the left and right side plates. After the upper support member 292, the plates are disposed such that the locking support members 292a and 292a project rearward at predetermined intervals from the right and left. Between the locking support members 292a and 292a, the locking shaft 292b is laterally disposed. In the lower portion of the left and right side plates of the upper support member 292, a plurality of openings are formed at equal intervals from the lower support member 291. The upper support member 292 and the lower support member 291 are integrated by being fastened and fastened by bolts or the like in a state in which the opening portions are aligned in a side view. Further, since a plurality of opening portions are formed, the height adjustment of the lower engaging body 290 can be performed by changing the opening portions that match each other.

The lower locking member disposed on the upper portion of the upper support member 292 is configured by the first lower engagement member 293 and the second lower engagement member 294.

The first lower engagement member 293 and the second lower engagement member 294 are each formed of a plate-shaped member. The upper portion of the first lower engaging member 293 and the lower portion of the second lower engaging member 294 are fixed so as to be integrally overlapped. The lower lower portion of the first lower engaging member 293 is rotatably supported by a pivot fulcrum shaft 295 that is transversely supported on the upper portion of the upper support member 292. Further, a lower portion of the first lower engaging member 293 has a locking shaft 293a transversely.

The front end of the second lower engaging member 294 is formed with an inclined side 294a which is inclined to be front low and rear high as viewed from the side. The upper portion of the second lower engaging member 294 is formed to protrude further forward than the front end of the first lower engaging member 293, and a locking portion is formed. The first lower engaging member 293 and the second lower engaging member 294 are integrally formed to have a crochet shape as viewed from the side.

The third biasing member 296 is composed of a compression spring or the like and is used to bias the lower end of the first lower engaging member 293 and the locking support members 292a, 292a. In the third elastic member 296, a plate-shaped insertion plate 297 is inserted. 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. The other end of the insertion plate 297 is formed with a long hole 297a, and the locking shaft 292b is slidably disposed in the long hole 297a.

As shown in Fig. 7, Fig. 12, and Fig. 22, the guide portion 8 is configured to move the planting and ejecting portion 7 at the planting position 17b and the structure in which the opening and closing means 2 are synchronized, and is disposed on Below the planting section 17.

The guide portion 8 is mainly constituted by a side guide plate 80, a lateral guide plate 81, a guide shaft 84, a synchronous guide bar 85, and a tensile member 86.

The side guide plate 80 is formed of a plate material having a long side in the front-rear direction, and is disposed on the lower portion of the side planting frame 182 so as to be a pair of right and left. Openings 80a, 80a having the same shape are formed in the front portion of the side guide plate 80. The opening 80a is opened so as to be substantially horizontal from the front end to the intermediate portion, and to be front low and rear high from the intermediate portion to the rear end. In other words, the opening portion 80a is a long hole that is formed into a substantially inverted U-shape.

The lateral guide plates 81 are formed in a substantially U-shaped cross section, and the guide shafts 84, 84, 84, 84 are laterally directed from the front and rear sides of the left and right end portions of the lateral guide plates 81, respectively. The front end portions of the guide shafts 84, 84, 84, and 84 are inserted into the left and right opening portions 80a, 80a, 80a, and 80a, and are slidably supported back and forth.

The lateral guide plate 81 is formed with an opening at a predetermined interval in the left-right direction. The opening is configured to be able to slide the lower end portion of the catheter 71.

The synchronous guide bar 85 is a bar that has a vertical direction as a long side, and is disposed to protrude downward from the left and right sides of the holding opening means 2. The synchronous guiding rod 85 is configured to abut against the mounting plate 28 fixed to the outer circumference of the annular body 3 when the annular body 3 is surrounded, and the guiding portion 8 moves behind the holding opening means 2 A component that moves synchronously. The upper ends of the synchronous guide bars 85 are fixed to the front and rear intermediate portions of the left and right end portions of the lateral guide plates 81. In detail, a through hole is formed in both end portions of the lateral guiding plate 81, and the upper end of the synchronous guiding rod 85 is disposed in the through hole, and the synchronous guiding rod 85 and the lateral guiding are made by a nut or the like. The lead plate 81 is fastened.

The tensile member 86 is configured by a tension spring having hooks at both ends. One end of the tensile members 86, 86 is locked to the attachment members 87, 87 fixed to the left and right side planting frames 182, and the other end is locked to the front side guide shafts 84, 84. Thus, the lateral guide plate 81 can be biased by the tensile member 86 being stretched in the forward direction.

Next, the operation of each planting device of the planting portion 17 disposed in the planting frame 18 will be described.

First, the synchronous movement of the opening means 2 and the pushing means 4 will be described using the drawing.

When the opening means 2 is held, as shown in Fig. 22(a), the opening means 2 is moved from the front to the rear in the planting position 17b. At this time, the lower end of the synchronous guiding rods 85, 85 of the guiding portion 8 abuts against the mounting plate 28 of the holding opening means 2, and the lateral guiding plate 81 to which the lateral guiding plate 81 is fixed is moved rearward. . Then, as shown in Fig. 22(b), the guide shafts 84, 84, 84, 84 projecting laterally from the lateral guide plate 81 are along the opening portions 80a, 80a of the side guide plates 80. The horizontal portions of 80a and 80a, in other words, are guided and moved toward the rear while sliding.

When the opening means 2 is moved further rearward, as shown in Fig. 22(c), the guide shaft 84 moves rearward and upward along the inclined portion of the opening 80a. By moving upward after the holding of the opening means 2 (lateral guiding plate 81), the synchronous guiding bars 85, 85 are lifted up, and the lower ends of the synchronous guiding bars 85, 85 are kept open. The mounting plate 28 of the hole means 2 is further moved upward, and when the abutment of the synchronous guiding bars 85, 85 and the holding opening means 2 is eliminated, the lateral guiding plate is biased by the direction of the direction toward the tensile member 86. 81 can be sent back. In other words, each of the guide shafts 84 can be moved to the front end of each of the opening portions 80a, and the lower ends of the synchronous guide bars 85, 85 can abut against the mounting plate 28 of the next holding opening means 2 located at the front.

In the lateral guide plate 81, the lower end portion of the duct 71 is slidably supported. Therefore, the duct 71 also moves in conjunction with the action of the lateral guide plate 81. The duct 71 is slidably supported by the rod support body 63 disposed below the swing portion 6 which is further above the lateral guide plate 81. Since the swing portion 6 is rotatably supported around the rotation fulcrum shaft 60, the duct 71 moves in the front-rear direction about the rotation fulcrum shaft 60.

Therefore, the planting and ejecting portion 7 held by the lateral guiding plate 81 can be synchronously moved (swinged) with respect to the movement of the planting position 17b with respect to the rear of the holding opening means 2 as shown in Fig. 12, At the time of planting, the lower portion of the planting and pushing portion 70 can be surely inserted into the opening portion 23a of the holding opening means 2.

Next, the operation of the pushing means 4 for planting the seed ball G in the field will be described using the drawing.

As shown in Fig. 6, Fig. 7, Fig. 13, and Fig. 14, when the opening means 2 is held at a predetermined position of the planting position 17b, it abuts against the contact of the stopper switch and becomes ON (turns on). ). Then, the electromagnetic solenoid 50 connected to the limit switch operates, and the engagement lever 51 rotates to fall off from the engaging body 52. Thus, the engaging body 52 is engaged with the push-out drive shaft 45 to integrally rotate, and the power can be transmitted to the push-out drive shaft 45. Therefore, the rotational force of the push-out drive sprocket 43 on the left side can be transmitted to the push-out drive shaft 45, and as shown in Fig. 14, the left and right pivot arms 53 fixed to the push-out drive shaft 45 are rotated. In addition, the above-described limit open relationship can be turned OFF after the passage of the abutment portion, and the electromagnetic solenoid 50 returns to the original position. Then, when the engaging body 52 performs a rotation, it is engaged with the engaging lever 51 again, and the power transmission from the engaging body 52 to the push-out driving shaft 45 is broken. When the push-out drive shaft 45 performs a rotation, the pivoting arm 53 coupled thereto also performs a rotation, and causes the follower arm 54 to move up and down while swinging forward and backward, so that the upper rod support body 56 can follow from the follow-up The arm 54 is interlocked by the connecting arm 55 and moves up and down.

The upper support body 56 is attached to the upper portion of the planting and pushing bodies 70, 70, 70, 70 of the planting and pushing portion 7. Therefore, the planting and pushing body 70 can be moved up and down in conjunction with the movement of the upper and lower rod support bodies 56 in the upper and lower directions. Further, the upper rod support body 56 is configured to be slidable to the swing coupling body 62 through the pair of right and left sliders 57. Therefore, the planting and ejecting body 70 moves in the front-rear direction with the swinging fulcrum shaft 60 centering on the movement of the swinging portion 6 in the front-rear direction, and moves up and down without reluctance.

In other words, the planting and pushing portion 7 moves up and down by the action of the crank driving portion 5.

Further, when the planting and pushing portion 7 is moved downward by the operation of the crank driving portion 5 (see Fig. 14 (c)), the seed ball G can be planted in the field.

Next, the action of planting the planting body 70 will be described.

By the lower movement of the upper rod support body 56 of the crank drive unit 5, the planting and ejecting portion 7 moves downward. Therefore, as shown in FIG. 19, the upper engaging body 90 and the restricting member 96 fixed to the upper rod supporting body 56 are both close to the second lower engaging member 294 of the lower engaging body 290 as shown in FIG. The collar 94c of the upper engaging body 90 contacts the inclined side 294a of the second lower engaging member 294.

Further, by the upper engaging body 90 moving downward, the collar 94c pushes the second lower engaging member 294 along the inclined side 294a. Therefore, the lower engaging members (293, 294) are rotated in the arrow C direction around the pivot point 295 against the elastic pressure of the third biasing member 296 (see Fig. 23). At this time, since the front portion of the upper engaging member 94 contacts the restricting projections 92a, 93b, it does not rotate forward about the pivot point 94a, and the collar 94c pushes the second lower engaging member 294. . Further, since the second lower engagement member 294 is pressed, the third elastic member 296 is compressed in the substantially vertical direction, and the upper end of the long hole 297a of the insertion plate 297 is moved in contact with the locking shaft 292b.

Moreover, when the collar 94c reaches the lower portion of the inclined side 294a, the lower engaging members (293, 294) can be centered on the pivot point 295 by the elastic pressure of the upper and lower biasing members 296. Rotate in the D direction. At this time, the push-out body 70 and the upper engaging body 90 are planted to be the lowest position.

On the other hand, at this time, as shown in Fig. 22, the opening means 2 can be held by the cam body disposed at the planting position 17b to abut the outer end of the driving arm 25, and by the opening body 26 The outer side is rotated, and the cover paper 10 covered in the field forms an opening portion.

Thereafter, as shown in Figs. 25 and 26, the holding body 73 disposed at the lower end portion of the catheter 71 that is moving downward enters the holding opening means 2 from above and remains held by the seed ball holder 21. The seed ball in G. The holder 73 moves downward with the seed ball G while holding the seed ball G. The holder 73 of the catheter 71 pushes the seed ball G toward the field below the opening portion of the cover paper 10 while reaching the lowermost position (see Fig. 2).

Thereafter, by the movement of the crank drive unit 5 above the upper rod support 56 (see FIG. 14(d)), the planting and ejecting portion 7 moves upward.

On the other hand, as shown in Figs. 24 and 27, the engaging portion 9 is locked to the lower engaging members (293, 294) by the collar 94c, so that as the upper rod supporting body 56 rises, Among the engaging portions 9, only the restricting member 96 fixed to the upper rod support 56 rises. However, the upper engaging body 90 other than the restricting member 96 is stopped from rising until the connecting shaft 91 comes into contact with the lower end of the long hole 96a. The duct 71 fixed to the upper rod support 56 through the attachment member 76 rises by the rise of the upper rod support 56.

At this time, the upper rod supporting body 56 resists the elastic pressure of the first biasing member 75, and compresses the first biasing member 75 through the mounting member 76 and the receiving member 77a, while shortening the side between the mounting member 76 and the sliding member 77. The planting rod 72 fixed to the sliding member 77 only raises the duct 71 at a position where the original state is maintained.

On the other hand, at this time, when focusing on the lower end of the planting and pushing portion 7 shown in Fig. 17, the planting rod 72 can be held at its height by being restrained by the connecting shaft 91, and is connected to the holding body 73 of the duct 71, After raising the predetermined height, the planting rod 72 will rise. Therefore, the planting rod 72 presses against the upper portion of the seed ball G, and only the duct 71 and the holding body 73 move upward, and the seed ball G of the field can be released from the holding state of the holding body 73 and planted in the field. Further, even after the planting is completed, even if foreign matter such as dirt adheres to the holding body 73, the planting rod 72 rises later than the duct 71 and the holding body 73, and the planting rod 72 can be made The soil in the holding body 73 is pushed downward. Then, as the conduit 71 rises, the first moldboard 74a removes the deposit of the planting rod 72 that stays underneath it, and can be removed by the second moldboard 74b without being removed by the first moldboard 74a. Clean attachments. Further, the deposit removed by the second moldboard 74b is dropped from the opening of the first moldboard 74a.

Further, by moving the upper rod support 56 of the crank driving portion 5 shown in Figs. 14(c) and (d), as shown in Fig. 28, the sliding member 77 pushes the contact member 91a upward. The pressure is applied, and the lower end of the long hole 96a of the restricting member 96 pushes the connecting shaft 91 upward.

With the two pressing forces, the upper engaging 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 elastic pressure of the second biasing member 95, and the upper engagement member 94 becomes the rotation fulcrum shaft 94a. The center rotates downwards.

By the further rise of the upper engaging member 94, the collar 94c is raised while rotating on the outer circumference of the abutting shaft 94b, and the engagement with the second lower engaging member 294 can be eliminated. The upper engaging member 94 is returned to the original position by the elastic pressure of the second biasing member 95 as shown in Fig. 19. Similarly, the first biasing member 75 pushes the contact member 91a upward by the elastic force by the elastic force of the sliding member 77, and raises the upper engaging body 90 other than the restricting member 96. Therefore, the rotation fulcrum shaft 94a abuts against the upper end of the long hole 96a of the restriction member 96.

At this time, the planting rod 72 moves upward together with the duct 71 as shown in Figs. 12 and 13. Then, by the above-described guide portion 8, the duct 71 is returned to the front centering on the pivot point 60, and the duct 71 is positioned above the new holding opening means 2 holding the seed ball G.

Therefore, the planting and pushing unit 7 moves up and down by the crank driving unit 5 to raise and lower the planting and ejecting unit 7, and the swinging unit 6 and the guiding unit 8 move in synchronization with the holding opening means 2 in the front-rear direction. The planting and pushing portion 7 can plant the seed ball G held by the holding opening means 2 to the field.

The seed ball G can be planted in the field by performing the aforementioned series of actions for each of the holding opening means 2.

In the series of operations, the two implanted push-out bodies 70 and 70 of the right and left center of the body in which the engaging portion 9 is not provided are transmitted through the connecting shaft 91 of the engaging portion 9 and the left and right center contact members 91a and 91a. Come on. In other words, substantially the same as the planting rods 72, 72 of the planting and pushing bodies 70, 70 disposed on the left and right sides, the two planting rods 72, 72 in the center of the left and right sides of the body are moved upward and downward with the connecting shaft 91. Action.

According to this configuration, the planting rods 72, 72, 72, and 72 are integrally coupled to the connecting shaft 91, and the planting loss can be further reduced, and the planting operation can be performed more efficiently.

Hereinafter, the movement from the seed ball G held by the holding opening 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 Fig. 18 and Fig. 25, for example, when the seed ball G is a seed ball of a garlic head, the seed ball G has a substantially equilateral triangle shape in plan view when the root side is regarded as a lower side. Planting the seed ball G in such a manner that a portion corresponding to the bottom side of the equilateral triangle extends in a direction orthogonal to the planting traveling direction (arrow A), whereby the leaves can be made to have the same direction of growth, and The leaves expand efficiently and even increase the amount of garlic harvested. Therefore, when the seed ball G is inserted into the seed ball holder 21 holding the opening means 2, the operator turns the germination point G1 which is the apex to the front upper side, and makes the garlic ball with the other seed ball G at the time of harvesting. The contact portions G2 and G2 that are in contact with each other are inserted into the seed ball holder 21 so as to be inclined obliquely forward. In this case, the seed ball holder 21 can be inserted into the seed ball holder 21 by aligning the apexes of the seed balls G, and can be inserted into the seed ball holder 21 in the opposite direction, rightward or leftward.

The seed ball G held by the holding means 2 in the above state is held at the planting position 17b (refer to Fig. 7), and is held by the holding body 73 of the planting body 70 instead of holding the opening means 2 And move down.

More specifically, as shown in FIGS. 25 and 26, the lower end of the holder 73 abuts against the holding portion 21h at the upper portion of the seed ball holder 21 after intruding into the holding opening means 2, and The lower portion is moved downward, and the holding portion 21h of the seed ball holder 21 that abuts against the seed ball G is pushed downward. In other words, the seed ball G, depending on the movement to the lower side of the holding body 73, is slowly released from the upper portion thereof depending on the holding state of the seed ball holder 21, and is in contact with the contact portion 73b, thereby not changing. The posture can be maintained by the body 73 to replace the seed ball holder 21.

At this time, as shown in Fig. 18, the holding body 73 abuts the side surface portion 73d and the two apexes of the side surface and the rear portion near the germination portion G1 of the seed ball G in the plan view, and the contact portion 73b To keep the seed ball G.

When the holding body 73 holds the seed ball G by the contact portion 73b, the side surface of the two apexes abuts against the side surface portion 73d, or the two apexes abut, depending on the shape of the seed ball G. In the case of the corner portion 73e, the posture of the seed ball G can be held in a posture substantially the same as the posture held by the holding opening means 2 even at this time.

The seed ball G is in the side view, and the G1 side of the germination is more reduced in diameter than the root side. Therefore, the three apexes of the seed ball G in plan view are in contact with the side surface portion 73d of the contact portion 73b in the holder 73 that softly changes the shape by the line and the surface. In other words, the holder 73 is in contact with the seed ball G at least in three lines or faces. Therefore, when the planting and pushing body 70 is moved downward, the seed ball G can be moved while being stably held.

As described above, the planting machine 1 of the present embodiment includes the traveling portion 14 and the planting portion 17 for planting the seed ball, and travels at the planting interval P (predetermined interval) in the traveling direction while walking on the field. The planting machine for planting the seed ball G, the planting portion 17 is provided with: a holding means 2 (holding means) for holding the seed ball G; and a pushing means 4 which is to be held by the aforementioned opening means 2 The seed ball G that is being held is planted while being pushed out to the field, and the pushing means 4 is provided with a cylindrical duct 71 (guide member) that holds the seed ball G held by the holding opening means 2 Moving to the field; and planting rod 72, which is attached to the duct 71 and planting the seed ball G moved by the duct 71 to the field while pushing out, the duct 71 is provided to enable the seed ball G The holder 73 of the seed ball G is held while moving, and the holder 73 has a cylindrical shape whose one side faces the holding opening means 2, and has a polygonal cross-sectional shape in the inner peripheral cross section.

With this configuration, when the seed ball G is planted in the field, the holder 73 is brought into contact with the outer periphery of the seed ball G at a plurality of positions, and the seed ball G is held in an appropriate posture. Therefore, the seed ball G held by the holding body 73 is pushed out by the planting rod 72, whereby the appropriate posture in the original state can be planted in the field. As a result, the posture of the seed ball G planted in the field is improved, and the crop grows uniformly.

In the planting machine 1 of the present embodiment, the holding body 73 is made of a soft material.

According to this configuration, the contact area of the holder 73 with the seed ball G can be increased, and the seed ball G can be easily held in the holder 73 in an appropriate posture. Thus, the seed ball G can be planted in the field in an appropriate posture. Further, since the holding body 73 is softly brought into contact with the outer peripheral surface of the seed ball G, the seed ball is not injured.

(industrial availability)

The present invention can be utilized in the technique of planting seed balls in a field planter.

1. . . Planting machine

2. . . Keeping the opening means (holding means)

4. . . Launch means

14. . . Walking department

17. . . Planting department

70. . . Planting body

71. . . Catheter (one part of the guiding member)

72. . . Planting rod

73. . . Holding body (one part of the guiding member)

211. . . First retaining plate (one of the retaining plates)

211a. . . First insertion hole

211b. . . crack

212. . . Second retaining plate (a type of retaining plate)

212a. . . Second insertion hole

212b. . . crack

213. . . Third retaining plate (a type of retaining plate)

213a. . . Third insertion hole

213b. . . crack

214. . . Opening plate

214a. . . Opening

G. . . Seed ball

P. . . Planting interval (predetermined interval)

Fig. 1 is a rear perspective view showing the configuration of a planting machine according to an embodiment of the present invention.

Fig. 2 is a side view showing the overall configuration of the planter of Fig. 1.

Fig. 3 is a view showing the configuration of a second auxiliary supply tank according to another embodiment of the present invention; wherein (a) is a side view showing the overall configuration of the second auxiliary supply tank; (b) is a configuration showing the periphery of the partition portion. Side view.

Fig. 4 is a rear elevational view showing the configuration of a second auxiliary supply tank according to another embodiment of the present invention.

Fig. 5 is a side view showing a power transmission mechanism in a planting portion according to an embodiment of the present invention.

Fig. 6 is a partial front view showing Fig. 5.

Fig. 7 is a side view showing a part of a rotary support portion and a planting device of Fig. 5.

Fig. 8 is a perspective view showing the configuration of the means for maintaining the opening.

Figure 9 is a perspective view showing the constitution of the seed ball holder.

Figure 10 is a diagram showing the state in which the seed ball is inserted into the seed ball holder; wherein (a) shows a partial end view of the state of the seed ball and the seed ball holder just before insertion; (b) shows the seed A partial end view of the state of the seed ball retainer after the ball is inserted into the first retaining plate.

Figure 11 is a view showing a state in which a seed ball is inserted into a seed ball holder; wherein (a) shows a partial end view of a state in which a seed ball is inserted into a second holding plate; (b) shows a seed ball inserted And maintain a partial end view of the state of the seed ball holder.

Fig. 12 is a side view showing the planting introduction portion in the planting portion.

Figure 13 is a front elevational view showing the construction of the planting device of Figure 12.

Figure 14 is a side view showing the state of the driving portion; (a) is a state diagram at the standby position; (b) is a state diagram during the transition from the standby position to the planting position; (c) is at the planting position State diagram; (d) is a state diagram on the way from the planting position to the standby position.

Figure 15 is a front view showing the length adjusting mechanism of the crank driving portion; wherein (a) is a state diagram in which the length of the crank driving portion is the longest; (b) is a state in which the length of the crank driving portion is intermediate; (c) It is a state diagram in which the length of the crank drive unit is the shortest.

Figure 16 is a side elevational cross-sectional view showing a side view of the configuration of the implanted pusher.

Figure 17 is a side elevational cross-sectional view showing the lower portion of the planting push-out portion; (a) showing the seed ball holding state diagram; and (b) showing a state diagram of the planting rod pushing the seed ball.

Figure 18 is a diagram showing the state of retention of the seed ball; wherein (a) shows a bottom view of the planting body in the direction of the arrow X in Fig. 16; (b) shows that the seed ball is held in the state of the seed ball holder. Partial view.

Fig. 19 is a side view showing the configuration of the engaging portion on the left side.

Fig. 20 is a plan view showing a configuration of the engaging portion on the left side; (a) is a partial plan view showing a configuration of the upper left engaging body; and (b) is a partial plan view showing a configuration of the lower left engaging body.

Fig. 21 is a front view showing the configuration of the engaging portion on the left side.

Figure 22 is a partial side elevational view showing the state in which the opening means and the guiding portion are abutted; wherein (a) is a schematic view of the support shaft at the front end of the opening of the guide plate; (b) the support shaft is located at the guide plate A schematic view of the middle portion of the opening portion; (c) is a schematic view showing a state in which the support shaft is located at the rear end of the opening portion of the guide plate.

Fig. 23 is a partial side cross-sectional view showing a state in which the upper left engaging member is lowered and abuts against the locking member.

Fig. 24 is a partial side sectional view showing a state in which the upper left engaging member is located at the lowermost position.

Figure 25 is a side cross-sectional view showing the state in which the seed ball holder holds the seed ball.

Figure 26 is a side cross-sectional view showing the state in which the implanted pusher receives the seed ball from the seed ball holder.

Fig. 27 is a partial side cross-sectional view showing a state in which the upper left engaging member abuts against the lower engaging member from below.

Fig. 28 is a partial side sectional view showing a state in which the lower left engaging member locks the rear end portion of the upper engaging member.

9. . . Clamping department

56. . . Upper rod support

63. . . Lower rod support

70. . . Planting body

71. . . Catheter (one part of the guiding member)

72. . . Planting rod

75. . . First elastic member

76. . . Mounting member

77. . . Sliding member

77a. . . Receiving member

90. . . Upper snap

91. . . Connecting shaft

91a. . . Contact member

92. . . First support member

92a. . . Limiting protrusion

93. . . Second member

93a. . . Locking projection

94. . . Upper snap member

94a. . . Rotating pivot shaft

94b. . . Abutment shaft

94c. . . Collar

95. . . Second elastic member

96. . . Restricting member

96a. . . Long hole

290. . . Lower snap

291. . . Lower support member

292. . . Upper support member

292a. . . Clamping support member

292b. . . Clamping shaft

293. . . First lower engaging member

293a. . . Clamping shaft

294. . . Second lower engaging member

294a. . . Tilted edge

295. . . Rotating pivot shaft

296. . . Third elastic member

297. . . Insert board

297a. . . Long hole

Claims (4)

A planting machine is a planting machine having a walking portion and a planting portion for planting a seed ball, and planting a seed ball at a predetermined interval in a walking direction while walking on a field, wherein the planting portion is The method includes: a holding means for holding the seed ball; and a pushing means for planting the seed ball held by the holding means to the field while pushing out, wherein the pushing means has a cylindrical guiding a member that moves the seed ball held by the holding means to the field; and a planting rod that is attached to the guiding member and pushes the seed ball moved by the guiding member to the side of the field Planting, wherein the guiding member is provided with a holding body for holding the seed ball when the seed ball is moved, and the holding body has a cylindrical shape with one side opening toward the holding means, and the inner circumference thereof The cross-sectional shape forms a polygon. The planting machine according to claim 1, wherein the holding system is made of a soft material. The planting machine according to claim 2, wherein the holding means is a holding plate having an insertion hole formed in the center thereof and extending from the insertion hole toward a vertex of a polygon matching the holding body. a slit is formed; and an apertured plate is formed in the center with a larger opening portion than the seed ball, and is formed by alternately overlapping a plurality of the insertion holes and the center of the opening portion. Further, the insertion holes of the holding plates disposed at the center in the vertical direction are larger than the insertion holes of the holding plates disposed on the upper and lower sides. The planting machine according to the third aspect of the invention, wherein the insertion hole of the holding plate disposed in the intermediate layer disposed between the holding plates on the upper and lower sides is formed so that the opening area is closer to the lower side. The bigger.