JP5654222B2 - Planting machine - Google Patents

Description

  The present invention relates to a planting machine, and more particularly to a technique for planting a seed ball in a field covered with a coating material such as a multi-film.

  Conventionally, seed balls such as garlic, if not planted in an appropriate planting posture, have led to a decrease in yield and grade due to poor germination and poor growth. Therefore, in order to harvest high-quality crops, we had to manually plant seed balls. However, when seed balls are cultivated as commercial crops, a large burden is imposed on the workers by manual work due to expansion of the cropping area. For this reason, a number of planting machines for planting seed balls in the field have been proposed. Means for forming an opening portion using an opening means constituted by a cutter in a field covered with a multi-sheet is known as a technique for planting seedlings of various crops. However, since it is difficult to hold a seedling when targeting a seed ball, the following planting machines are presented.

  For example, the planting machine shown in Patent Document 1 is a planting machine for planting seed balls such as garlic, and includes a drilling unit, a sitting unit, and a soil covering unit. The drilling means is heated with a gas burner before starting work, and when it comes into contact with the multi-film covered with the firewood, it instantly opens a planting hole and then enters into the soil of the firewood to form a planting hole Let When this planting machine is used, a seed ball is planted in the planting hole by an operator seated on the seating means, and then covered with soil covering means from the upper surface of the multi-film. In the planting machine of Patent Document 1, a part of the multi-sheet is melted by the heat of the punching means to form an aperture, and therefore it is difficult to form an aperture suitable for the seed ball. In addition, work efficiency was low because humans planted seed balls directly in planting holes formed for planting seed balls. Moreover, it has not been easy to change the seedball strains according to the conditions such as the field without having the strain change means.

  While forming the opening part suitable for the seed ball in the multi-sheet, it was difficult to accurately plant the seed ball in the opening part.

JP 09-289805 A

  In view of the above situation, the present invention provides a planting machine that can form a hole suitable for a seed ball in a covering material and can accurately plant a seed ball from the hole to a field. Objective.

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

In Claim 1, it arrange | positions so that raising / lowering can be carried out ahead of the said traveling part, the said traveling part, and a driving force is provided to the said traveling part and the said planting part via a power transmission mechanism. A planting machine for planting seed balls at a predetermined interval in the traveling direction while traveling, wherein the planting unit is a side view in the right and left planting frames. A pair of left and right endless bodies that are rotatably supported by rotation support portions provided respectively at the top positions of the polygonal shape, and a plurality of bridges between the left and right endless bodies that hold seed balls and open the covering material that covers the farm scene. Holding hole means for forming a hole, and when the holding hole means passes through the lowermost planting position, a seed ball held by the holding hole means in the opening portion by the holding hole means together and a plant extruder in the field by pressing, said endless Are provided at an upper position, front and rear middle positions, and front and lower positions, and between the front and rear rotation support parts constituting the front and rear lower position rotation support parts. The planting position is arranged, and the driving force from the driving unit is transmitted to the rear rotation support unit at the lower position via a power transmission mechanism, and the rear side rotation is performed at the rear side of the planting position. The drive sprocket of the support portion is configured to pull and drive the endless body, and the endless body at the planting position is configured to be always pulled during the planting operation .

According to claim 2, in the planting machine according to claim 1, the power transmission mechanism is configured so that the traveling speed of the traveling unit and the rotational speed of the endless body of the planting unit are synchronized. is there.

  Since the present invention is configured as described above, the following effects can be obtained.

In Claim 1 , between the rotation support part of the front and back lower part becomes a planting position, an endless body will be driven by the rotation support part of a rear side, and the extrusion apparatus and endless body by slack of an endless body Therefore, it is possible to prevent the seed ball from being pushed down and to plant the plant accurately.
Moreover, the load to the supporting member around the planting position where the load is likely to be applied can be reduced, and deformation of the planting frame can be prevented.

According to the second aspect of the present invention, when the opening is formed in the covering material, excessive tension is not generated in the covering material, and contraction of the opening formed in the covering material can be prevented.
Therefore, an opening part can be hold | maintained in the state suitable for a seed ball, a seed ball can be planted exactly, and the growth inhibition of the seed ball by a coating | covering material can be prevented.

The rear perspective view which shows the structure of the planting machine which concerns on embodiment of this invention. The side view which similarly shows the whole structure of a planting machine. The top view which shows the structure of a power transmission mechanism typically. The side view which shows the power transmission mechanism in a planting part. Similarly a partial front view. The side view which shows the structure of a part of rotation support part and a planting apparatus similarly. The front view which shows the rotation diameter of an adjustment hole and a rotation arm, (a) State where rotation diameter is the longest, (b) State where rotation diameter is intermediate, (c) State where rotation diameter is the shortest. The perspective view which showed the structure of the holding | maintenance hole means. The side view which shows the planting extrusion part in a planting part. The front view which similarly shows the structure of a planting apparatus. A side view showing the state of the drive unit, (a) a diagram of the state at the standby position, (b) a diagram of a state during the transition from the standby position to the planting position, (c) a diagram of the state at the planting position, (D) The figure of the state in the middle of returning from a planting position to a standby position. The center cross-sectional view which shows the structure of a planting extrusion body. The partial side view which shows the state of contact | abutting with a holding hole means and a guide part. (A) The figure in case a support shaft is located in the front end of a guide plate opening part. (B) The figure in case a support shaft is located in the middle part of a guide plate opening part. (C) The figure in case a support shaft is located in the rear end of a guide plate opening part. The side view which shows the structure of the left engaging part. The side view which shows the state of the left engaging part, (a) The figure of the state which the upper engaging member and the latching member contacted from the upper part, (b) The state where only the planting rod of the planting extrusion body stopped Figure. The side view which shows the state of the left engaging part, (a) The figure of the state which the upper engaging member pushed down the locking member, (b) The figure of the state which the locking member returned to the original position. The side view which shows the state of the left engaging part, (a) The figure of the state which the upper engaging member and the latching member contacted from the lower part, (b) The state where only the planting rod of the planting extrusion body stopped Figure. The side view which shows the state of the left engaging part, (a) The figure of the state which the upper engaging member pushed up the latching member, (b) The figure of the state which the planting extrusion body rose from the latching member.

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

  Below, with reference to FIGS. 1-3, the whole structure of the planting machine 1 is demonstrated. In the description, the direction of the arrow A shown in the figure is defined as the front direction of the planting machine 1, and the front-rear and left-right directions are defined.

  The planting machine 1 is a planting machine used for planting a seed ball G on a cocoon covered with a multi-sheet 10. The planting machine 1 mainly includes a body frame 12, a driving unit 13, a traveling unit 14, a driving operation unit 15, a power transmission mechanism 16, a planting unit 17, and the like.

  The body frame 12 is a structure that forms the skeleton of the planting machine 1, and includes a plurality of left and right support frames that extend in the vertical direction, and a plurality of left and right support frames that extend horizontally in the support frame. The front and rear frames, and the left and right frames horizontally disposed between the front and rear frames are connected and fixed. A step 12 a for an operator to get on and off the planting machine 1 is formed at the front and rear center of the machine body frame 12. A power transmission mechanism 16 and an elevating link mechanism 2 for keeping the distance between the planting surface (field) and the planting unit 17 at an appropriate height by arranging the planting unit 17 up and down are arranged at the center of the left and right of the step 12a. Is done. The elevating link mechanism 2 is covered with a protective case 155 disposed above in the front-rear direction.

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

  The drive unit 13 includes an engine 131 and a generator 132 that are power sources, and transmits power to the traveling unit 14 and the planting unit 17 to drive each unit. The drive unit 13 is mounted on the rear part of the body frame 12 and is arranged so as to balance the weight in the front-rear direction with the planting part 17 connected to the front part of the body frame 12. Above the driving unit 13, a mounting unit 154 for placing a basket 153 in which the seed ball G is stored is disposed.

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

  The seat 151 is juxtaposed on the left and right on the body frame 12 in front of the engine 131. The operation column 152 is arranged in the vicinity of the periphery of the seat 151. In this embodiment, the operation column 152 is arranged diagonally to the right of the seat 151 on the right outer side of the machine body. By operating the operation lever of the operation column 152 and the like, it is configured so that the power connection / disconnection operation to the traveling unit 14 and the shifting operation and the power connection / disconnection operation to the planting unit 17 can be performed.

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

  As shown in FIGS. 1, 2, and 4, the planting unit 17 is disposed at the front of the planting machine 1 in order to plant the seed ball G in the field. The planting unit 17 in the present embodiment is configured by arranging various planting devices and the like in the planting frame 18 and the inside thereof.

  The planting frame 18 is a structure that forms the skeleton of the planting unit 17, and is disposed in front of the machine frame 12 from the rear of the machine frame 12 via the lifting link mechanism 2. The main planting frame 19 is formed by bending a bar material such as a pipe into a polygon whose rear lower part is opened in a side view, and is a pair of left and right with an interval slightly shorter than the left and right body width. Be placed. Specifically, the main planting frame 19 is formed so that one end thereof is positioned in the middle of the upper and lower parts of the rear portion of the planting unit 17. A rear inclined portion 19a is formed from the rear end of the main planting frame 19 toward the front upper side so as to be lower in front and rear. Further, a horizontal portion 19b is formed in the upper portion of the planting portion 17. From the front part of the horizontal part 19b, the front upper inclined part 19c is formed so that the front upper part becomes the front low and the rear high. The front lower inclined portion 19d is formed so as to become lower in front and rear from the lower portion of the front upper inclined portion 19c toward the center of the planting portion. And the other end of the main planting frame 19 is formed so as to be located in the lower front part of the planting part 17.

  On the left and right main planting frames 19, 19, side planting frames 19f are arranged in the vertical direction and the front-rear direction. Horizontally planted frames 19e and 19e are installed between the left and right main planted frames 19 and 19, respectively. With this configuration, a space is formed in the planting frame 18, and various planting devices can be arranged in the space. Further, the main planting frames 19 and 19 are covered with a cover 171 on the left and right outer sides thereof. An endless cover 172 is disposed on both inner sides of the main planting frames 19 and 19 so as to protrude inward.

  Further, as shown in FIG. 1, a replenishment box 170 is installed between the rear portions of the main planting frames 19 and 19. The replenishment box 170 is a container in which the seed ball G to be inserted into the holding hole means 20 of the planting part 17 is temporarily stored before insertion. The operator takes out the seed ball G in the supply box 170 by hand and inserts it into the holding hole means 20. The replenishment box 170 is slightly shorter than the left and right width of the planting part 17 and is formed in a bowl shape with its upper part opened. The left and right side portions of the supply box 170 are fixed to the rear inner side of the rear inclined portion 19 a of the main planting frame 19 and the rear end of the endless body cover 172. In addition, since the supply box 170 is configured to be connected to the left and right, if the seed ball G disappears in front of the left and right workers, the seed ball G in the supply box 170 on the left and right other side can be easily moved to one side. The seed ball G can be replenished. When the seed ball G in the supply box 170 is exhausted, the seed ball G can be supplied to the supply box 170 from the basket 153 behind the seat 151.

  As shown in FIGS. 1 to 3, the power transmission mechanism 16 transmits the driving force of the engine 131 to the traveling unit 14 and the planting unit 17. In this embodiment, the power transmission mechanism 16 includes a belt and a pulley, a chain and a sprocket, a transmission shaft, a gear, and the like, but is not limited thereto.

  Specifically, the output shaft 160 protrudes from the engine (drive source) 131 disposed at the rear of the aircraft toward the interior of the aircraft. A first engine pulley 161 and a second engine pulley 162 are fixed on the output shaft 160. An input shaft 163 parallel to the output shaft 160 protrudes from the generator 132 in front of the engine 131 toward the inside of the body. A generator pulley 164 is fixed to the end of the input shaft 163. An endless belt 165 is wound around the generator pulley 164 and the second engine pulley 162. Therefore, the rotational force (driving force) from the engine 131 is transmitted to the generator 132 via the second engine pulley 162, the generator pulley 164, and the endless belt 165, and is used for power generation.

  On the other hand, the transmission shaft 166 is supported by the body frame 12 below the seat 151 so as to be rotatable in the left-right direction. The first pulley 167 is fixed on the transmission shaft 166 so as to be in front of the first engine pulley 161. An endless belt 168 is wound around the first engine pulley 161 and the first pulley 167.

  A first traveling pulley 260 that transmits power to the traveling unit 14 is fixed to the right end of the transmission shaft 166. A first planting pulley 360 that transmits power to the planting unit 17 is fixed to the left end of the transmission shaft 166. The driving force of the engine 131 is transmitted to the first traveling pulley 260 and the first planting pulley 360 via the transmission shaft 166.

  Hereinafter, transmission of driving force to the traveling unit 14 will be described. The mission case 141 is arranged in the middle of the left and right of the crawlers 140 and 140 and in the upper part. A second traveling pulley 262 is fixed to the input shaft 261 protruding from the transmission case 141 so as to be directly below the first traveling pulley 260. An endless belt 263 is wound around the first traveling pulley 260 and the second traveling pulley 262. Accordingly, the power of the transmission shaft 166 is transmitted from the first traveling pulley 260 to the second traveling pulley 262 via the belt 263 and transmitted to the transmission case 141 via the input shaft 261.

  At the rear part of the mission case 141 (in FIG. 3, for convenience of drawing, the front and the back are described in reverse), the output shafts 264 and 264 are arranged so as to protrude outward. Travel drive sprockets 265 and 265 are fixed to the outer ends of the output shafts 264 and 264. Traveling transmission sprockets 266 and 266 fixed to the traveling drive shaft are disposed below the traveling drive sprockets 265 and 265 (in FIG. 3, for the sake of convenience of drawing, described at the front). Endless transmission chains 267 and 267 are wound around the traveling drive sprockets 265 and 265 and the traveling transmission sprockets 266 and 266. Traveling wheels 268 and 268 for rotationally driving the crawlers 140 and 140 of the traveling unit 14 are fixed to the other end of the traveling drive shaft.

  Therefore, the power transmitted to the transmission case 141 via the input shaft 261 is shifted in the transmission case 141 and then transmitted to the left and right output shafts 264 and 264 and the travel drive sprockets 265 and 265. Further, the power is transmitted to the traveling wheels 268 and 268 through the transmission chains 267 and 267, so that the crawlers 140 and 140 of the traveling unit 14 are driven to travel.

  Next, transmission of the driving force to the planting part 17 will be described with reference to FIGS. A rear gear case 361 is disposed in front of the transmission shaft 166. The rear gear case 361 is supported by the airframe frame 12 at the substantially center of the airframe. In the rear gear case 361, a left and right transmission shaft 362 is disposed so as to protrude outward (leftward) from the body so as to be substantially parallel to the transmission shaft 166. A second planting pulley 362 a is fixed to the left end of the left and right transmission shaft 362. An endless belt 360a is wound around the first planting pulley 360 and the second planting pulley 362a.

  A bevel gear 362b is fixed to the right end portion of the left and right transmission shaft 362 in the rear gear case 361. The bevel gear 362b is meshed with the bevel gear 363a in the rear gear case 361. The bevel gear 363a is fixed to one end (rear end) of the front / rear transmission shaft 363. The front / rear transmission shaft 363 is housed in the protective case 155 with the front / rear direction as the longitudinal direction. That is, the front / rear transmission shaft 363 is disposed to extend forward at a substantially right angle to the left / right transmission shaft 362. The other end of the front / rear transmission shaft 363 is inserted into a gear case 364 supported at the approximate center of the rear portion of the planting portion 17. A bevel gear 363 b is fixed to the front end of the front and rear transmission shaft 363 in the gear case 364. The bevel gear 363b is meshed with the bevel gear 365a in the gear case 364. The bevel gear 365a is fixed to the right end portion of the planting input shaft 365.

  However, the left and right transmission shafts 362 and the front and rear transmission shafts 363 are configured to have a universal joint or the like in the middle thereof so that the power transmission direction can be changed without difficulty even if only the planting portion 17 is raised or lowered. It is configured.

  Thus, power is transmitted from the first planting pulley 360 on the left end of the transmission shaft 166 to the second planting pulley 362a via the endless belt 360a. The power of the second planting pulley 362a is transmitted to the planting input shaft 365 through the left / right transmission shaft 362 and the front / rear transmission shaft 363 while changing the power transmission direction.

  The planting input shaft 365 protrudes to the left from the gear case 364 and is rotatably supported by the front portion of the driving operation unit 15 on the rear portion of the planting frame 18 on the left side of the planting unit 17.

  A drive sprocket 40 of the first planting transmission mechanism 16 a that transmits power to the extrusion device 4 is fixedly provided in the middle of the left and right of the planting input shaft 365. On the other hand, the drive sprocket 30 of the second planting transmission mechanism 16b that transmits power to the endless body 3 is fixed to the left end of the planting input shaft 365.

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

  As shown in FIGS. 3 and 4, the first planting transmission mechanism 16 a is mainly composed of a drive sprocket 40, a driven sprocket 41, a tension sprocket 42, an extrusion drive sprocket 43, a transmission chain 44, and an extrusion drive shaft 45. A drive sprocket 40 is fixedly provided in the middle of the left and right of the planting input shaft 365. An extrusion drive shaft 45 that is slightly shorter than the right and left width of the planting unit 17 is disposed in front of and above the planting input shaft 365 (upper part of the planting unit 17). The extrusion drive shaft 45 is rotatably supported on the left and right of the planting frame 18. An extrusion drive sprocket 43 is fixed to the left end of the extrusion drive shaft 45. A driven sprocket 41 is arranged at the front upper side of the drive sprocket 40, and a tension sprocket 42 is arranged at the rear lower side of the push drive sprocket 43.

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

  Accordingly, power is transmitted from the planting input shaft 365 to the push drive shaft 45 via the drive sprocket 40, the transmission chain 44 and the push drive sprocket 43. A clutch, which will be described later, is disposed between the extrusion drive sprocket 43 and the extrusion drive shaft 45, and transmission of power is restricted by the action of the clutch. Then, the power transmitted to the endless drive shaft 33 activates the extrusion device 4.

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

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

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

  Further, as shown in FIGS. 4 to 6, inner endless body drive sprockets 35, 35 are fixed on the endless body drive shaft 33 on both inner sides of the main planting frame 19. The left and right endless driven sprockets 36, 37, 38, and 39 are arranged so that a predetermined space is formed in a side view. An endless body 3 composed of an endless chain or the like is wound around the left and right endless body driven sprockets 36, 37, 38, and 39. Since the endless body 3 is disposed symmetrically, the left side will be mainly described below.

  In addition, the planting position 17 b is a position where the seed ball G is planted on the field, and is arranged at the lowermost part of the planting unit 17. The lower endless driven sprocket 39 and the lower end of the inner endless drive sprocket 35 behind the lower endless body driven sprocket 39 are arranged side by side in the front-rear horizontal direction in a side view. Further, as the endless body 3 wound around the endless body driven sprockets 36, 37, 38, 39 rotates, the holding hole means 20 moves substantially horizontally rearward at the lower portion of the planting portion 17. In addition, a guide member 174 is disposed. The guide member 174 is configured to guide the roller 29 of the holding hole means 20.

  Thus, the endless body 3 is wound between the replenishment position 17a and the planting position 17b, and the holding hole means 20 is rotationally driven with the insertion direction facing the vertical direction except for the replenishment position 17a. Is done. Therefore, the inner endless body drive sprocket 35 is arranged to be pulled and driven on the rear side of the planting position 17b to rotate the endless body 3, so that the endless body 3 at the planting position 17b is planted. It becomes possible to be planted accurately in synchronism with the traveling and crank driving unit 5 without being loosened by being always pulled during the work. The seed ball G (holding hole means 20) is not greatly shaken and is not shaken down, and is reliably transferred from the replenishment position 17a to the planting position 17b.

  The endless body 3 is constituted by an endless chain or the like as described above, and is stretched inside the planting frame 18 so as to be a polygon (pentagon) in a side view. More specifically, the endless body 3 is a pair of left and right inner endless body drive sprockets 35 that are rotation support portions provided on the left and right inner sides of the planting frame 18 so as to be the top positions of the polygonal shape in side view, and each endless body. It is wound around driven sprockets 36, 37, 38, 39. Between the left and right endless bodies 3, the holding hole means 20 is horizontally mounted in the left-right direction at predetermined intervals in the rotation direction of the endless body 3.

  The replenishment position 17a is inclined at a predetermined angle between the front height and the rear so that the seed ball G can be easily replenished (inserted) into the holding hole means 20 in front of the operation unit 15. That is, the upper endless driven sprocket 37 is arranged at the uppermost part of the front and rear center part of the planting part 17 so that the height of the upper endless driven sprocket 37 can ensure a front view at the time of planting work. It is lower than the eye level of the person, higher than the knee, and about the height of the shoulder. The height of the rear endless driven sprocket 36 disposed below and behind the upper endless driven sprocket 37 is about the height of the seat surface of the seat 151 that is higher than the step and lower than the chest of the operator. Thus, the endless body 3 stretched between the upper endless driven sprocket 37 and the inner endless drive sprocket 35 is disposed so as to incline from front to back and low, and the replenishment position 17a is disposed.

The replenishment position 17a is disposed in front of the seat 151 and within the reach of an operator seated on the seat 151. Specifically, the replenishment position 17a is disposed between the upper endless driven sprocket 37 and the rear endless driven sprocket 36 such that the endless body 3 is inclined at a predetermined angle from front to rear and low. An inner endless drive sprocket 35 is disposed on the planting frame 18 so that the holding hole means 20 moves obliquely forward and upward while maintaining this angle. That is, a plate-shaped guide member 173 having a longitudinal direction in the front-rear direction is disposed below the endless body 3 between the upper endless body driven sprocket 37 and the rear endless body driven sprocket 36. The guide member is fixed to the planting frame 18 so as to be parallel to the endless body 3. The guide member 173 is guided by rollers 29 described later provided on both sides of the holding hole means 20 rolling on its upper surface, and the seed ball insertion surface of the seed ball holder 21 moves forward and upward while facing the operator side. Configured to do. At the replenishment position 17a, the holding aperture means 20 are arranged in parallel in a plurality of rows (three rows in the present embodiment), and there is some allowance for the replenishment time of the seed ball G. It can be easily modified.
Thus, the operator can work in a posture in which the seed ball G can be easily supplied to the holding hole means 20 to be described later while being seated on the seat 151, thereby reducing fatigue and improving work efficiency.

  With the above configuration, power from the engine 131 is transmitted from the transmission shaft 166 to the traveling unit 14 via the first traveling pulley 260. The power from the engine 131 is transmitted from the transmission shaft 166 to the planting input shaft 365 via the first planting pulley 360 and further transmitted to the extrusion device 4 and the endless body 3 of the planting unit 17. Is done. Accordingly, the planting portion 17 is driven in synchronization with the traveling portion 14 to form an opening portion at a predetermined interval P in the traveling direction on the heel covered with the multi-sheet 10, and from the opening portion to the heel. A seed ball G can be planted.

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

  Next, each planting device arranged in the planting frame 18 of the planting unit 17 will be described with reference to FIGS. 6 to 10. Each planting device of the planting part 17 is mainly constituted by the holding hole means 20, the extrusion device 4 and the like arranged on the endless body 3.

  As shown in FIG. 1, FIG. 8, or FIG. 9, the holding hole means 20 is a means for making a hole in the multi-sheet 10 when the seed ball G is held and the planting position 17b is reached. The holding hole opening means 20 is mainly composed of a case body 23, a plurality of seed ball holders 21, and an opening body 26.

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

  The opening body 26 is configured such that four plate members are bent in a reverse L-shape when viewed from the side, and one side thereof is rotatably disposed on the opening / closing drive unit 24. The other side protrudes downward, and is formed in a pointed shape so that the tip of the other side can be easily pierced into the multi-sheet 10 to form an opening.

  The opening / closing drive unit 24 for driving the opening 26 to open and close is constituted by a link mechanism, and is disposed between the seed ball holder 21 and the opening 26. A drive arm 25 is rotatably connected to both sides of the opening / closing drive unit 24. The outer end of the drive arm 25 is configured to open the opening 26 by being pushed inward. A cam body (not shown) is provided in the front-rear direction on the drive arm 25 side inside the lower portion of the planting frame 18 (see FIG. 1). The cam body is formed to protrude inward so that the outer end of the drive arm 25 abuts and the aperture 26 forms an aperture in the multi-sheet 10.

  That is, in a state where the outer end of the drive arm 25 is in contact with the cam body, the lower end of the opening body 26 is positioned around the opening 23a, and the opening body 26 is opened. In a state where the drive arm 25 protrudes outward from the case body 23 without the drive arm 25 and the cam body coming into contact with each other, the lower end of the opening body 26 is located at the center of the opening 23a, and the opening body 26 Is closed.

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

  Support shafts 27 and 27 are arranged on the upper left and right sides of the case body 23 so as to protrude outward. A mounting plate 28 having an L shape in a side view is rotatably attached to the outer periphery of the support shafts 27 and 27. One surface of the mounting plates 28, 28 is mounted on the outer periphery of the endless bodies 3, 3. Thus, the holding hole means 20 is supported so as to be swingable around the support shaft 27 at positions other than the replenishment position 17a and the planting position 17b, and the insertion shaft center of the seed ball holder 21 has a vertical direction by its own weight. It is conveyed (moved) while facing.

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

  Next, the extrusion device 4 will be described. When the holding hole opening means 20 moves in the lowermost planting position 17b, the extrusion device 4 forms an opening in the field covered with the multi-sheet 10 by the opening body 26 of the holding hole opening means 20. Immediately after being done, the seed ball G held in the holding hole opening means 20 is pressed downward to plant the seed ball G in the opening. The extruding device 4 is mainly composed of a crank driving unit 5, a swinging unit 6, a planting extruding unit 7, a guide unit 8, and an engaging unit 9.

  As shown in FIGS. 4 to 7, the crank drive unit 5 is for transmitting the driving force of the first planting transmission mechanism 16 a disposed on the left side of the planting unit 17 to the planting extrusion unit 7. is there. The crank drive unit 5 is mainly composed of a clutch, a turning arm 53, a driven arm 54, a connecting arm 55, and an upper rod support 56. The crank drive part 5 is arrange | positioned at the left-right outer side of the side part planting frame 19f of the planting part 17, respectively, and is arrange | positioned so that it may become a left-right pair. The clutch includes an electromagnetic solenoid 50, an engagement lever 51, and an engagement body 52.

  The push drive sprocket 43 of the first planting transmission mechanism 16a is connected to the push drive shaft 45 via a clutch (specifically, the engagement body 52). That is, the engagement body 52 is configured by a spring clutch externally fitted to the push-out drive shaft 45 and an engagement disk engaged with one end of the spring clutch, and a protrusion is provided on the outer periphery of the engagement disk. It is configured to be able to engage with an engagement lever 51 arranged at the position. Thus, when the engagement body 52 engages with the engagement lever 51, the transmission of power from the push drive sprocket 43 to the push drive shaft 45 is cut off, and by releasing the engagement, the push drive from the push drive sprocket 43 is driven. The power is transmitted to the shaft 45. Further, the engagement lever 51 is connected to a piston that is an operating body of the electromagnetic solenoid 50 that is an actuator arranged in the vicinity thereof. When the electromagnetic solenoid 50 is operated, the piston is contracted and the engagement lever 51 is rotated, the engagement between the engagement lever 51 and the engagement body 52 is released, and power is transmitted. The electromagnetic solenoid 50 is controlled to operate by turning on and off a limit switch near the planting position 17b (not shown) (the limit switch detects whether the holding hole means 20 has reached a predetermined position).

  One end of a rotation arm 53 is fixed to each of the left and right ends of the push-out drive shaft 45. A plurality of adjustment holes 53a and 53a are opened at the other end of the rotating arm 53 at a predetermined interval in the longitudinal direction. One end (inner side) of the rotation shaft 54a is inserted into one of the adjustment holes 53a, 53a, 53a. One end of the driven arm 54 is rotatably disposed at the other end (outside) of the rotation shaft 54a. That is, the plurality of adjustment holes 53 a, 53 a, and 53 a serve as a length adjustment mechanism for the crank drive unit 5. A through hole is opened at the other end of the driven arm 54. One end (outside) of the connecting shaft 54b is fixed to the through hole. The other end (inner side) of the connecting shaft 54 b is rotatably supported on the upper portion of the connecting arm 55. An upper rod support 56 is horizontally provided at the lower part of the left and right connecting arms 55.

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

  With the above-described configuration, when the holding hole means 20 reaches the predetermined position of the planting position 17b, the contact opening of the limit switch comes into contact with the ON, and the electromagnetic solenoid 50 connected to the limit switch is activated to operate the engagement lever 51. Rotates to disengage from the engagement body 52. Then, the engaging body 52 is engaged with the push drive shaft 45 and rotates integrally, and the power is transmitted to the push drive shaft 45. Therefore, the rotational force of the left push-out drive sprocket 43 is transmitted to the push-out drive shaft 45, and the left and right turning arms 53 fixed to the push-out drive shaft 45 are rotated as shown in FIG. The limit switch is turned OFF after the contact portion passes, and the electromagnetic solenoid 50 returns to the original position. Then, when the engaging body 52 rotates once, it engages with the engaging lever 51 again, and the power transmission from the engaging body 52 to the push drive shaft 45 is cut off. When the push-out drive shaft 45 rotates once, the rotating arm 53 connected to the push-out drive shaft 45 rotates one time, and the driven arm 54 is moved up and down while swinging back and forth, and is moved upward from the driven arm 54 via the connecting arm 55. The rod support 56 is moved up and down in conjunction with each other. That is, the seed ball G is planted in the field when the planting push-out unit 7 is moved downward by the operation of the crank driving unit 5 (see FIG. 11C).

  The length adjusting mechanism of the crank driving unit 5 described above is configured such that the rotating shaft 54a is inserted into one of the adjusting holes 53a, 53a, and 53a of the rotating arm 53, thereby rotating the rotating shaft 54a. It is configured by changing the diameter from long to short. By changing the turning diameter of the turning shaft 54a, the connection length of the turning arm and the link (link constituted by the turning shaft 54a, the driven arm 54, the connecting shaft 54b, and the connecting arm 55) is moved up and down. The amount can be adjusted, and the raising / lowering distance of the crank drive part 5 is adjusted. Therefore, the raising / lowering height of the planting extruded body 70 connected to the upper rod support 56 of the crank driving unit 5 is changed, and the planting depth of the seed ball G can be easily changed to a desired depth. .

  Next, the swing part 6 will be described with reference to FIGS. The oscillating portion 6 is mainly composed of a rotation fulcrum shaft 60, a lateral body 61, an oscillating connector 62, and a lower rod support 63. The swinging portion 6 is disposed so as to be swingable back and forth immediately below the push drive shaft 45. The rotation fulcrum shafts 60 and 60 are arranged so as to protrude inward from the upper portions of the left and right side planting frames 19f immediately below the push drive shaft 45, and rotate around the side planting frames 19f (FIG. 1). It is supported movably. A horizontal body 61 is fixed to the lower end of the inner end of each of the rotation fulcrum shafts 60 and 60. The horizontal body 61 is a member obtained by bending a plate body having a longitudinal direction in the left-right direction into a substantially inverted concave shape in a side view. At the left and right ends of the horizontal body 61, the upper ends of rod-like swing coupling bodies 62 and 62 having the vertical direction as the longitudinal direction are fixed. Both ends of a lower rod support 63 that is substantially parallel to the horizontal body 61 and slightly shorter in the left-right length than the horizontal body 61 are fixed to the lower ends of the swing coupling bodies 62 and 62. Similarly to the upper rod support 56, the lower rod support 63 is formed with an opening support 63a that slidably supports a planting extrusion 70 of the planting extrusion 7 described later.

  As shown in FIGS. 10 and 12, the planting pusher 7 is configured by a plurality (four in this embodiment) of planting pushers 70, and the planting pushers 70 are arranged in the main planting frame 19. Are arranged at predetermined intervals (intervals between the openings 23a of the holding aperture means 20). The planting extrudate 70 is mainly composed of a guide pipe 71 and a planting rod 72.

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

  In the guide pipe 71, a planting rod 72, which is a bar having a longitudinal direction as a longitudinal axis, is slidably mounted in the vertical direction. A holding body 73 is fixed to the lower end of the guide pipe 71. The holding body 73 is formed with openings on the top and bottom. The opening is formed so as to easily hold the upper part of the seed ball G held by the holding hole opening means 20.

  A planting rod 72 is internally provided in the guide pipe 71. The planting rod 72 is composed of a bar material slightly longer than the guide pipe 71. The upper portion of the planting rod 72 is supported by a support shaft 93 extending in the left-right direction via an attachment member 92 of the engaging portion 9 described later. Between the mounting member 92 of the planting rod 72 and the upper rod support 56, a spring 74 is disposed to bias the planting rod 72 so as to slide upward.

  As shown in FIGS. 6, 9, and 13, the guide portion 8 is a structure for synchronizing the rearward movement of the planting push portion 7 and the holding hole means 20 at the planting position 17 b. It arrange | positions at the lower part of the attaching part 17. FIG. The guide portion 8 is mainly composed of a side guide plate 80, a lateral guide plate 81, a guide shaft 84, a synchronization guide rod 85, and a tension member 86.

  The side guide plates 80 are made of a plate material whose longitudinal direction is the front-rear direction, and are arranged in a pair of left and right at the lower portion of the side planting frame 19f. Openings 80 a and 80 a having the same shape are formed in the front and rear portions of the side guide plate 80. The opening 80a is opened substantially horizontally from the front end to the middle part, and is opened from the middle part to the rear end so as to have a front low and rear height. That is, the opening 80a is formed in a substantially reverse “H” -shaped long hole.

  The lateral guide plate 81 is formed in a substantially inverted U shape when viewed in cross section, and guide shafts 84, 84, 84, 84 project from the front and rear sides of the left and right ends of the lateral guide plate 81, respectively, The distal ends of the guide shafts 84, 84, 84, 84 are inserted into the left and right openings 80a, 80a, 80a, 80a and supported so as to be slidable back and forth.

  The synchronization guide rod 85 is a bar whose longitudinal direction is the longitudinal direction, and is arranged so as to protrude downward from the left and right sides of the holding hole means 20, and when the endless body 3 circulates, the outer periphery of the endless body 3 This is a member that abuts on the mounting plate 28 fixed to the guide plate 8 so that the guide portion 8 moves in synchronization with the rearward movement of the holding hole means 20. The upper end of the synchronization guide rod 85 is fixed to the front and rear middle portions of the left and right ends of the horizontal guide plate 81. Specifically, through holes are formed at both ends of the horizontal guide plate 81, and the upper end of the synchronous guide rod 85 is inserted into the through holes, and the synchronous guide rod 85 and the horizontal guide plate 81 are connected with nuts or the like. And conclude.

  The tension member 86 is configured by a tension spring having hooks at both ends. One end of each of the tension members 86 and 86 is locked to mounting members 87 and 87 fixed to the left and right side planting frames 19f, and the other end is locked to the front guide shafts 84 and 84. Thus, the lateral guide plate 81 is biased so as to be pulled forward by the tension member 86.

  At the time of planting, as shown in FIG. 13A, the endless body 3 is rotated, so that the holding hole means 20 moves from the front to the rear at the planting position 17b. At this time, the lower end of the synchronous guide rods 85 and 85 abuts on the holding hole means 20, whereby the lateral guide plate 81 to which the lateral guide plate 81 is fixed is moved rearward. As shown in FIG. 13B, the guide shafts 84, 84, 84, 84 projecting laterally from the lateral guide plate 81 have openings 80a, 80a, 80a,. It is moved rearward along the horizontal portion of 80a, that is, while being guided and slid. When the holding hole means 20 is further moved rearward, the guide shaft 84 is moved rearward and upward along the inclined portion of the opening 80a as shown in FIG. 13 (c). As the holding opening means 20 (lateral guide plate 81) moves rearward and upward, the synchronization guide rods 85 and 85 are lifted, and the lower ends of the synchronization guide rods 85 and 85 are lower than the mounting plate 28 of the holding opening means 20. When it moves upward and the contact between the synchronous guide rods 85 and 85 and the holding hole means 20 is eliminated, the lateral guide plate 81 is returned forward by the forward biasing force of the tension member 86. That is, the guide shafts 84 are moved to the front ends of the openings 80a, and the lower ends of the synchronization guide rods 85 and 85 can be brought into contact with the mounting plate 28 of the next holding hole means 20 positioned forward. . Therefore, the planting pushing part 7 held by the lateral guide plate 81 can be moved (swinged) in synchronism with the rearward movement of the holding hole means 20 at the planting position 17b. At the time of attachment, the lower part of the planting extruded body 70 can be reliably inserted into the opening 23a of the holding hole means 20.

  As shown in FIGS. 10 and 14 to 18, the engaging portion 9 temporarily restricts the raising of the planting rod 72 when the planting push-out unit 7 rises after the planting of the seed ball G is completed. Thus, the guide pipe 71 is raised first. The engagement portion 9 is mainly configured by an upper engagement body 90 disposed on both sides of the support shaft 93 and a lower engagement body 91 disposed on both sides of the lower rod support body 63.

  Since the members of the engaging portion 9 to be described below are symmetrical, only the configuration on the left side will be described. The upper engaging bodies 90 are respectively arranged so as to be a pair of left and right from the upper part of the left and right planting push-out parts 7 to the rear part of the sliding body 57 in the vicinity thereof. The upper engagement body 90 includes an attachment member 92, a support shaft 93, a pin 93a, an upper engagement member 94, and a support member 95. The attachment member 92 is a plate material bent in a substantially inverted L shape in a side view, and includes a horizontal portion 92a and a vertical portion 92b. A through hole is opened in the front portion of the horizontal portion 92a, and the upper portion of the planting rod 72 of the planting extrusion unit 7 is installed in the through hole, and the planting rod 72 and the attachment member 92 are fastened. The attachment members 92, 92, 92, 92 are fixed to the support shaft 93 between the swing coupling bodies 62, 62 of the swing portion 6 at substantially equal intervals, and the lower surface of the horizontal portion 92a and the front surface of the vertical portion 92b. It is fixed in contact with. Further, an upper engagement member 94 is rotatably fitted on the support shafts 93 outside the left and right attachment members 92 and 92. A torsion spring is externally fitted between the upper engaging member 94 and the mounting member 92, and the upper engaging member 94 is biased to rotate in the direction of arrow B in FIG. On the other hand, a pin 93a protrudes inward from the upper engaging member 94, and the pin 93a abuts against the lower surface of the horizontal portion 92a to serve as a stopper.

  The front surface of the support member 95 is fixed to the rear upper portion of the sliding body 57. The support member 95 is made of a plate material having the vertical direction as a longitudinal direction, and an elongated hole 95a having a vertical direction as a longitudinal direction is opened at an upper portion thereof. A left end portion (outer end portion) of the support shaft 93 is slidably inserted into the long hole 95a.

  The lower engagement body 91 is disposed below the rear of the upper engagement member 94 disposed on the left and right sides in the planting standby state in which the planting extruded body 70 is positioned at the uppermost position. The lower engagement body 91 includes a locking member 96, a rotation member 96d, a rotation support shaft 96c, a rotation fulcrum shaft 97, an upper support member 98b, a lower support member 98a, and an urging member 99.

  The lower support member 98a is composed of two plate members whose longitudinal direction is the longitudinal direction, and the lower ends thereof are fixed to the rear portions on both sides of the lower rod support 63 with a predetermined left and right spacing. The lower support member 98a has a plurality of openings at an upper and lower intervals at an upper portion thereof. The upper support member 98b is formed by bending the plate member into a concave shape with the rear opened in plan view. A plurality of openings with the same interval as the lower support member 98a are opened on both lower sides of the upper support member 98b. Therefore, the upper support member 98b and the lower support member 98a are integrated by penetrating and fastening with a bolt or the like in a state in which the openings are matched in a side view. Further, since the plurality of openings are opened, the height of the lower engagement body 91 can be adjusted by changing the opening to be matched.

  The locking member 96 disposed on the upper portion of the upper support member 98b is formed by bending a plate material into a reverse concave shape when viewed from the front. The locking member 96 is formed with a horizontal portion 96a and vertical portions 96b and 96b. The front end of the horizontal portion 96a is notched so that the entire width is notched, and the front lower portions of the vertical portions 96b and 96b are notched so as to be lower in front and rear in side view. At the front upper part of the vertical portions 96b and 96b, a rotation support shaft 96c is horizontally provided on the vertical portions 96b and 96b, and a cylindrical rotation member 96d is rotatably supported by passing through the rotation support shaft 96c. Is done. And the upper part of the upper support member 98b is arranged inside the rear lower part of the vertical parts 96b and 96b of the locking member 96 so as to overlap in a side view. A through hole is opened in each of the overlapped portions, and a rotation fulcrum shaft 97 is rotatably inserted in the through hole, and a stopper is provided at both ends thereof. The

  The urging member 99 is constituted by a coil spring or the like and is fitted on the rotation fulcrum shaft 97. One end of the biasing member 99 is locked to the upper rear end of the locking member 96, and the other end is locked to the rear surface of the upper support member 98b. Therefore, the locking member 96 is urged by the urging force of the urging member 99 so that the front part thereof rotates downward (C direction) around the rotation fulcrum shaft 97. The lower surface of the horizontal plane portion is in contact with the upper surface of the upper support member 98b.

  In the above-described configuration, the planting pusher 7 is moved downward by the downward movement of the upper rod support 56 of the crank drive 5. Therefore, as shown in FIG. 14, the upper engaging body 90 connected to the planting pusher 7 approaches the locking member 96. Further, as shown in FIG. 15A, the rear end of the upper engaging member 94 abuts on a rotating member 96 d that is the front end of the locking member 96. Further, as shown in FIG. 15B, the downward movement of the upper engagement member 94 is stopped by the urging force of the locking member 96. That is, the downward movement of the planting rod 72 connected via the support shaft 93 and the attachment member 92 is stopped. Therefore, the lowering movement of the planting extrudate 70 is stopped and only the guide pipe 71 is lowered until the support shaft 93 reaches the upper end from the lower end of the elongated hole 95a of the support member 95.

  When the planting extruded body 70 is further lowered in a state where the support shaft 93 is in contact with the upper end of the elongated hole 95a of the support member 95, the upper engagement member 94 is attached as shown in FIG. It is rotated in the C direction around the support shaft 93 against the urging force of the urging member 94a (see FIG. 10). When the contact between the upper engagement member 94 and the locking member 96 is released by the downward movement of the upper engagement member 94, the upper engagement member 94 is indicated by a solid line in FIG. As shown, the urging force of the urging member 94a returns the pin 93a to the original position where it abuts against the mounting member 92.

  After the seed ball G is planted in the opening portion of the field, the planting push-out unit 7 is moved upward by the upward movement of the upper rod support 56 of the crank driving unit 5. As shown in FIG. 17A, the rear end of the upper engagement member 94 comes into contact again with the rotation member 96 d at the front end of the locking member 96. Further, as shown in FIG. 17B, the upward movement of the upper engaging member 94 is stopped by the drag of the locking member 96. That is, the upward movement of the connected planting rod 72 is stopped via the support shaft 93 and the attachment member 92. Therefore, the raising of the planting rod 72 stops and only the guide pipe 71 rises until the pin 93a reaches from the upper end to the lower end of the long hole 95a of the support member 95.

  Here, paying attention to the lower end of the planting part, when the upper part of the seed ball G adheres to the inside of the holding body 73 (see FIG. 12), if the planting extruded body 70 and the holding body 73 rise simultaneously, The sphere G rises while attached to the holding body 73. However, if the planted extruded body 70 rises after the holding body 73 connected to the guide pipe 71 rises to a predetermined height, even if the seed ball G is attached to the holding body 73, By leaving only the extruded body 70, it is possible to eliminate the adhesion of the seed balls G to the holding body 73. Moreover, even if foreign matter such as soil adheres to the holding body 73 immediately after planting, the planting push-out part 7 can be pushed downward to push the soil downward. As a result, the seed ball G can be prevented from being damaged by the soil of the holding body 73 at the tip of the planting extruded body 70.

  Further, as the upper rod support 56 of the crank drive unit 5 moves upward, the upper engagement member 94 moves upward against the urging force of the urging member 99 as shown in FIG. The front end of the locking member 96 rotates upward about the rotation fulcrum shaft 97. By the upward movement of the upper engaging member 94, the engagement with the upper engaging member 94 is released, and the locking member 96 is biased by the biasing member 99 as shown in FIG. To return to the original position. The seed ball G is pressed by performing the series of movements for each holding hole means 20.

  With the above configuration, the planting pusher 7 moves up and down while being regulated in the front-rear direction of the swinging part 6 by the vertical movement of the crank driving part 5. Therefore, the seed ball G held in the holding hole means 20 can be planted in the field.

  As described above, the planting machine 1 according to the present embodiment includes the traveling unit 14, the planting unit 17 for planting a seed ball, which is disposed in front of the traveling unit 14 so as to be lifted and lowered. A planting unit 1 having a planting unit 17 and a drive unit 13 that is driven via a power transmission mechanism 16, and planting a seed ball G at a predetermined interval P in the traveling direction while traveling, The planting portion 17 includes a pair of left and right endless bodies 3 and 3 that are rotatably supported by rotation support portions that are respectively provided at the top positions of the polygonal shape in side view in the left and right planting frames 18 and the left and right endless bodies 3. -A plurality of spans 3 and holding hole means 20 for holding the seed ball G and forming an opening in the covering material (multi-sheet 10) covering the field scene, and the holding hole means 20 is the lowermost part When passing through the planting position 17b, the opening portion by the holding opening means 20 An extruding device 4 for pressing the seed ball G held in the holding hole opening means 20 and planting the seed ball G in the field, and the traveling speed of the traveling unit 14 and the rotation of the endless body 3 of the planting unit 17. The power transmission mechanism 16 is configured to synchronize with the speed.

  By configuring in this way, when forming the opening portion in the covering material 10, excessive tension is not generated in the covering material 10, and contraction of the opening portion formed in the covering material 10 can be prevented. it can. Therefore, an opening part can be hold | maintained in the state suitable for the seed ball G, the seed ball G can be planted exactly, and the growth inhibition of the seed ball G by the coating | covering material 10 can be prevented.

  In the planting machine 1 according to the present embodiment, the rotation support portions 35, 36, 37, 38, and 39 are provided at an upper position, front and rear middle positions, and front and rear lower positions, and the rear rotation of the lower position is performed. A driving force is transmitted from the driving unit 13 to the support unit 35.

  By configuring in this way, the space between the rotation support portions 35 and 39 at the front and rear lower positions becomes the planting position 17b, and the endless body 3 is driven by the rear rotation support portion 35. Thus, an unnecessary locking state between the extrusion device 4 and the endless body 3 due to the slack of can be avoided, the push-in failure of the seed ball G can be prevented, and planting can be performed accurately. Further, it is possible to reduce the load on the supporting members around the planting position 17b where load is easily applied, and to prevent the planting frame 18 from being deformed.

DESCRIPTION OF SYMBOLS 1 Planting machine 3 Endless body 4 Extruding device 10 Coating material (multi-sheet)
DESCRIPTION OF SYMBOLS 13 Drive part 14 Traveling part 16 Power transmission mechanism 17 Planting part 17b Planting position 18 Planting frame 20 Holding | maintenance hole means 35 Rotation support part (internally endless drive sprocket)
36 Rotation support (rear endless driven sprocket)
37 Rotation support (Upper endless driven sprocket)
38 Rotating support (front endless driven sprocket)
39 Rotation support (lower endless driven sprocket)
G seed ball P between stocks

Claims (2)

A traveling unit, a planting unit disposed so as to be movable up and down in front of the traveling unit, and planting a seed ball; and a driving unit that applies a driving force to the traveling unit and the planting unit via a power transmission mechanism; A planting machine for planting seed balls at predetermined intervals in the traveling direction while traveling,
The planting part is
A pair of left and right endless bodies that are rotationally supported by rotational support portions respectively provided at the top positions of the polygonal shape in side view in the left and right planting frames,
A plurality of spans between the left and right endless bodies, holding hole means for holding a seed ball and forming an opening in a covering material covering a field scene;
When the holding hole means passes through the lowermost planting position, an extruding device that presses the seed ball held by the holding hole means to the hole portion by the holding hole means and plants the seed ball on the field, With
The endless rotation support portion is provided at an upper position, front and rear middle positions, and front and lower positions.
Between the front side rotation support part and the rear side rotation support part that constitute the rotation support part at the front and rear lower positions, the planting position is arranged,
The driving force from the driving unit is transmitted to the rear rotation support unit at the lower position via a power transmission mechanism, and the drive sprocket of the rear rotation support unit is connected to the endless body at the rear side of the planting position. Configured to pull and drive,
A planting machine , wherein the endless body at the planting position is configured to be always pulled during planting. 2. The planting machine according to claim 1, wherein the power transmission mechanism is configured so that a traveling speed of the traveling unit and a rotational speed of an endless body of the planting unit are synchronized . .

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