JP2013233124A - Planting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a planting machine that reduces maintenance work necessitated by the clogging of a planting unit with soil, while allowing the user to plant seed bulbs into a field in a proper attitude.SOLUTION: A planting machine 1 includes a planting unit having a traveling unit, a retaining means for retaining seed bulbs G, and a thrusting means for planting the seed bulbs G retained by the retaining means in a field, and plants the seed bulbs G in a field while traveling. The thrusting means includes a guide pipe 71, a planting rod 72 slidably provided inside the guide pipe 71, and a retainer 73 mounted at the tip of the guide pipe 71 for moving the seed bulbs G retained by the retaining means to a field. The retainer 73 is formed of a hard material.

Description

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

  Conventionally, seed balls such as garlic are planted so that the seed ball buds are on the top and the seed ball roots are on the bottom. Inappropriate planting led to a decrease in yield and grade due to poor germination. Therefore, a planting machine for planting seed balls in an appropriate posture has been proposed.

  For example, as shown in Patent Document 1, a planting machine for extruding garlic seeds held by a holding unit with a planting rod and planting the seeds in a farm is known. In this planting machine, in order to push the seed ball into the field while holding the seed ball with the holding unit, the holding unit is made of a soft member such as rubber so as not to damage the seed ball. Therefore, when planting work is performed, when the holding part is deformed, soil enters the deformed part, deforms the retained part, and it is difficult to plant while holding the seed ball in an appropriate posture There was a case. If proper planting is to be performed, maintenance such as removing soil that has entered the gaps of the holding portion is required.

JP 2012-5375 A

  Therefore, an object of the present invention is to provide a planting machine that can reduce the maintenance caused by the clogging of the planting part and can plant the seed balls in an appropriate posture in the field.

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

  That is, in claim 1, the vehicle includes a traveling unit, a holding unit that holds the seed ball, and an extruding unit that plants the seed ball held by the holding unit into the field. While the planting machine for planting the seed ball to the field, the pushing means is attached to the guide pipe, the planting rod slidably provided in the guide pipe, and the tip of the guide pipe, A holding body that moves the seed balls held by the holding means to the field, and the holding body is made of a hard material.

  According to a second aspect of the present invention, the holding body attaches the first attachment portion to the guide pipe, the contact portion that holds the seed ball held by the holding means, and the contact portion to the first attachment portion. And a second mounting portion for forming the contact portion, wherein the contact portion is formed in a spiral shape.

  In Claim 3, the said planting rod is arrange | positioned with the press part which can contact | abut to the said contact part.

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

  According to the first aspect of the present invention, since the holding body is a hard member, the holding body can be prevented from being deformed, and foreign matters such as soil can be prevented from adhering to the gap caused by the deformation. Therefore, the maintenance of the planting part due to the adhesion of soil can be reduced, the setting of the seed ball with respect to the holding body due to the absence of the soil can be stabilized, and the planting posture of the seed ball can be made appropriate.

  According to the second aspect, even when soil or the like adheres to the spiral contact portion, the contact portion can be vibrated by the movement of the planting extrusion portion, and the adhered soil or the like can be removed. Therefore, the maintenance for removing the deposits can be reduced, the setting of the seed ball on the planting part due to the absence of soil or the like can be stabilized, and the planting posture of the seed ball can be made appropriate.

  In Claim 3, when a contact part and the press part of a planting rod contact, a vibration can be given to a contact part and deposits, such as soil adhering to a contact part, can be shaken off.

The side view which showed the whole structure of the planting machine which concerns on one Example of this invention. The side view which shows the structure of a part of planting apparatus. The perspective view which shows the structure of a holding hole means. The partial end elevation which shows the state of the seed ball and seed ball holder just before inserting. (A) Sectional drawing which shows the structure of a planting extrusion body, (b) The enlarged view of the holding | maintenance part shown to (a). The schematic sectional side view which shows the state in which a planting extrudate receives a seed ball from a seed ball holder. The schematic sectional side view which shows the state in which a planting extrudate presses a seed ball on a farm field. The schematic sectional side view which shows the state of the planting extrusion body which the planting of the seed ball completed. The schematic sectional side view which shows the state of the planting extrusion body which the planting of a seed ball complete | finishes and raises.

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 thereto, and may be planted in a substantially flat farm field that is not coated with the multi-sheet. .

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

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

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

  The planting frame 18 is a structure that is a part of the planting unit 17 and forms a skeleton of the planting unit 17. The planting frame 18 is disposed in front of the body frame 12 from the rear part of the body frame 12 via the lifting link mechanism 11.

  A space is formed in the planting frame 18, and various planting apparatuses to be described later are arranged in the space. Further, the planting frame 18 is covered with a cover 171 on the left and right outer sides thereof.

  The drive unit 13 includes an engine 131 that is a power source and a generator (not shown). The drive unit 13 transmits power to the traveling unit 14 and the planting unit 17 to drive each unit. The drive unit 13 is mounted on the rear part of the body frame 12.

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

  The driving operation unit 15 is disposed in the front and rear center of the body frame 12, and the traveling unit 14 and the planting unit 17 are operated. The driving operation unit 15 includes an operation column 152 on which a plurality of operation levers and the like for operating the seats 151 and 151 on which an operator is seated, the traveling unit 14 and the planting unit 17 are arranged. By operating the operation lever of the operation column 152 or the like, the power is connected to and disconnected from the traveling unit 14, the speed change operation, and the power to the planting unit 17 are connected and disconnected. The operation column 152 includes a work clutch lever, a travel clutch lever, a side clutch lever, a travel shift lever, a planting height automatic adjustment switch, a travel direction automatic adjustment switch, an engine stop switch, a planting lift switch, and a planting part drive switch. Etc. are arranged.

  The seats 151 and 151 are juxtaposed side by side on the body frame 12 in front of the engine 131.

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

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

  The planting unit 17 is configured by arranging various planting apparatuses in a space inside the planting frame 18. Various devices of the planting unit 17 are driven by the driving force of the engine 131. The driving force from the engine 131 is transmitted to various planting devices through a power transmission mechanism such as a transmission shaft, a gear, a pulley, and a belt (not shown) while changing the speed change and the power transmission direction.

  The driving force transmitted to the planting part 17 is transmitted to the endless body 3 shown in FIG. 2 and the crank driving part.

  The planting part 17 is arrange | positioned in the front part of the planting machine 1 in order to plant the seed ball G in a farm field. The planting part 17 in this embodiment is mainly used by various planting devices (planting means) such as the planting frame 18 and the holding hole means 2 disposed in the space inside the planting frame 18 and the pushing means. Composed.

  Each planting device of the planting part 17 is mainly configured by the holding hole opening means 2, the pushing means and the like arranged on the endless body 3.

  The endless body 3 is rotatably supported by the planting frame 18, and moves the holding hole means 2 described later from the replenishment position 17a to the planting position 17b. The endless body 3 is composed of an endless chain or the like, and is rotatably held by a sprocket or the like (not shown) so that a pair of right and left is located on the left and right inner sides of the planting frame 18 in a polygonal top position in side view. Between the left and right endless bodies 3, the holding hole means 2 is horizontally mounted at a predetermined interval in the rotation direction of the endless body 3.

  The replenishment position 17a is disposed in front of the seat 151 and within the reach of an operator seated on the seat 151. At the replenishment position 17a, a plate-shaped guide member 173 that is inclined at a predetermined angle from the front height to the rear is disposed below the endless body, so that the endless body 3 is inclined at a predetermined angle from the front height to the rear. The planting position 17b is a lower part of the planting part 17, and in the planting position 17b, a plate-shaped guide member 174 having a longitudinal direction in the front-rear direction is disposed below the endless body 3, and thus the endless body Is substantially horizontal to the field scene. The guide members 173 and 174 are fixed at predetermined positions of the planting frame 18. The guide member 173 is guided by rollers 29 described later provided on both sides of the holding hole means 2 rolling on the upper surface thereof, and the seed ball insertion surface of the seed ball holder 21 moves forward and upward while facing the operator side. Configured to do.

  As the endless body 3 is rotated by the driving force, a guide member 174 is arranged in the lower portion of the planting portion 17 so that the holding hole means 2 moves rearward substantially horizontally. The guide member 174 is configured to guide a roller 29 of the holding hole means 2 described later.

  As shown in FIG. 2, the holding hole opening means 2 is a means for opening a hole in the multi-sheet 10 when the seed ball G is held and the planting position 17 b is reached. In the present embodiment, the holding means is the holding hole means 2 having opening means that can form an opening portion in the multi-sheet 10. However, as long as the opening means is provided separately or the opening portion is provided in advance in the multi-sheet, any holding means having a function of transporting the seed ball G to the planting position 17b may be used.

  As shown in FIGS. 3 and 4, the holding hole opening means 2 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. A pair of upper and lower openings 23a and 23a are formed on the upper and lower surfaces of the case body 23 so that the seed balls G can be inserted and discharged. The pair of upper and lower openings 23 a and 23 a are provided at a plurality of positions with a predetermined interval in the left-right direction with respect to the case body 23. In the present embodiment, the pair of upper and lower openings 23a and 23a are provided in four places because they are four-row planted. A seed ball holder 21 for holding the seed ball G is fixed below the opening 23 a on the case body 23. Moreover, the opening body 26 is arrange | positioned on the case body 23 under the said seed ball holder 21 (refer FIG. 2).

  The seed ball holder 21 has a plurality of rectangular holding plates (holding plate 211, holding plate 212, holding plate 213) and a plurality of rectangular aperture plates 214. The seed ball holder 21 is formed by alternately attaching a holding plate and an aperture plate 214 one above the other.

  The holding bodies 211, 212, and 213 are made of an elastic plate such as rubber. In the holding plates 211, 212, and 213, an insertion hole having a diameter smaller than that of the seed ball G is formed in the approximate center thereof. The insertion hole is disposed at the center of the seed ball holder 21, that is, the holding bodies 212 and 213 are insertion holes having a larger diameter than the upper and lower holding plates 211. Furthermore, the holders 211, 212, and 213 are formed with a plurality of cuts radially outward from the insertion hole in plan view.

  The aperture plate 214 is made of an elastic plate such as urethane, and an aperture portion having a diameter larger than the seed ball G and allowing the seed ball G to pass therethrough is formed at the approximate center thereof.

  With this configuration, the seed ball G is inserted from above the seed ball holder 21 and is held by the holding plates 211, 212, 213, and 211.

  The opening 26 shown in FIG. 2 is formed by bending four plate members in a reverse L shape in side view. One side (upper side not shown) of the opening 26 is rotatably arranged in the opening / closing drive unit 24 shown in FIG. The other side (lower side) of the apertured body 26 is formed in a pointed shape so as to protrude downward from the case body 23 and the tip of the other side can be easily pierced into the multi-sheet 10 to form an apertured part. The

  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. When the outer end of the drive arm 25 is pushed inward, the opening 26 is configured to open. A cam body (not shown) is provided in the front-rear direction on the drive arm 25 side inside the lower portion of the planting frame 18. The cam body is formed so as to protrude inward so that the outer end of the drive arm 25 abuts, and the opening body 26 is opened in the multi-seat 10 by the outer end of the drive arm 25 abutting and rotating. A hole is formed.

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

  Therefore, the tips of the four apertures 26 stuck in the multi-sheet 10 rotate outward from the center of the opening 23a, so that the aperture of a predetermined size is formed at a predetermined position of the multi-sheet 10. It 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. An L-shaped attachment plate 28 is rotatably attached to the outer periphery of the support shafts 27 and 27. One surface of the mounting plates 28, 28 is mounted on the outer periphery of the endless bodies 3, 3.

  Thus, the holding hole means 2 is supported so as to be swingable around the support shaft 27 at positions other than the replenishment position 17a and the planting position 17b, and the insertion shaft center of the seed ball holder 21 has a vertical direction by its own weight. It is conveyed (moved) while facing.

  Rollers 29 and 29 are disposed at the lower portions of the left and right sides of the case body 23 so as to protrude rotatably at a predetermined interval in the front-rear direction. At the replenishment position 17a and the planting position 17b, the conveying posture is regulated by the guide members 173 and 174 (see FIG. 2) 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 substantially parallel to the field scene at the planting position 17b.

  Next, the extrusion means will be described with reference to FIGS. 2 and 5 to 8.

  Immediately after the opening part is formed in the field covered with the multi-sheet 10 by the opening body 26 of the holding hole opening means 2, the extrusion means moves the seed ball G held in the holding hole opening means 2 downward. It is a means for pressing and planting the seed ball G in the field below the opening of the multi-sheet 10. The pushing means is mainly composed of a crank driving part, a swinging part 6, a planting pushing part 7, a guide part 8, and an engaging part 9.

  A crank drive part is for moving the planting extrusion part 7 to an up-down direction by transmitting the driving force of the drive part 13, or interrupting | blocking. The crank driving unit is for operating the transmission force at an appropriate timing to the pushing means for pushing the seed balls held in the holding hole means 2 to the field.

  The swinging portion 6 is for synchronizing and supporting the planting push-out portion 7 with the movement of the holding hole means 2 in the front-rear direction. It is horizontally installed so as to be swingable in the front-rear direction around a rotation support shaft 60 supported by the planting frame 18. A guide pipe 71 of a planting push-out unit 7 to be described later is inserted into the lower part of the rocking unit 6, and the planting push-out unit 7 is slidably supported by the rocking unit 6.

  The planting extruding unit 7 is for planting the seed ball G held by the holding hole opening means 2 into the field. The planting extruding unit 7 is composed of a plurality (four in the present embodiment) of planting extrudates 70. The planting extrudate 70 is arranged in the space in the planting frame 18 with a predetermined interval (interval of the opening 23a of the holding aperture means 2) in the left-right direction. The planting extrudate 70 is mainly composed of a guide member composed of a guide pipe 71 and a holding body 73, a planting rod 72, a biasing member 75, an attachment member 76, and a fixing member 77.

  The guide pipe 71 is a cylindrical member whose longitudinal direction is the vertical direction. The upper end of the guide pipe 71 is fixed to a part of the crank driving portion via an attachment member 76. The middle part of the guide pipe 71 is inserted into an opening in the lower part of the swinging part 6 and is slidably held. Further, the lower portion of the guide pipe 71 is held by a guide portion 8 described later so as to be slidable in the vertical direction. The inner diameter of the attachment member 76 is reduced in the middle of the upper and lower parts, and the upper part is formed larger than the lower part.

  In the guide pipe 71, a planting rod 72, which is a bar having a longitudinal direction as a longitudinal direction, is internally provided. The planting rod 72 is slidable in the vertical direction with respect to the guide pipe 71. The planting rod 72 is made of a bar material slightly longer than the guide pipe 71. A fixing member 77 is attached to the upper part of the planting rod 72. The upper end of the fixing member 77 is configured to be able to contact a part of the engaging portion 9 extending in the left-right direction.

  On the outer peripheral surface of the distal end portion (lower end portion) of the planting rod 72, a pressing portion 72a that allows a contact portion 73c of a holding body 73 described later to be pressed from above is formed. The pressing portion 72a is formed in an annular plate shape that opens in the vertical direction. The inner diameter of the pressing portion 72 a is formed slightly larger than the outer diameter of the lower end portion of the planting rod 72. The outer diameter of the pressing part 72a is smaller than the inner diameter of the upper part of the first mounting part 73a and slightly larger than the outer diameter of the upper end part of the contact part 73c of the holding body 73. The pressing portion 72a is fixed by welding or the like so as to be positioned in the upper space of the first mounting portion 73a of the planting rod 72 in a state of being inserted through the planting rod 72.

  The receiving member 77 a is an annular member and is fitted on the planting rod 72. The upper surface of the receiving member 77 a is fixed so as to contact the lower surface of the fixing member 77. The upper part of the urging member 75 is fixed to the lower part of the receiving member 77a.

  The urging member 75 is configured by a compression spring, and is inserted into the attachment member 76 so that the lower end thereof is in contact with the attachment member 76. Then, by interposing the biasing member 75 between the receiving member 77a and the mounting member 76, the planting rod 72 is biased to slide upward while being supported by the mounting member 76 and the guide pipe 71. The In addition, the planting rod 72 connected to the receiving member 77 a can move relative to the guide pipe 71 connected to the mounting member 76 by the length of the biasing member 75 that is expanded and contracted.

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

  The first attachment portion 73 a is a portion for attaching the holding body 73 to the lower end portion of the guide pipe 71. The first mounting portion 73a is made of a hard material such as metal and is formed in a substantially cylindrical shape that opens in the vertical direction. The inner diameter of the first attachment portion 73a is formed substantially the same as the outer diameter of the guide pipe 71 in the upper part. The inner diameter of the first mounting portion 73a is expanded so that the lower portion is larger than the upper portion in the middle of the upper and lower portions, and a space into which the second mounting portion 73b is inserted is formed in the lower portion. Furthermore, mounting holes 73d and 73d for fixing the second mounting portion 73b are provided in the first mounting portion 73a substantially perpendicular to the insertion direction of the second mounting portion 73b.

  The second mounting portion 73 b is a part for extracting the seed ball G held by the holding hole means 2 from the holding hole means 2. The second mounting portion 73b has a water repellency that is difficult for dirt to adhere to, and is made of a hard material such as a low-friction resin. It is formed in a shape. The inner diameter of the second mounting portion 73b is formed to be substantially the same as the inner diameter of the upper portion of the first mounting portion 73a (the outer diameter of the guide pipe 71) at the top. The inner diameter of the second attachment portion 73b is reduced so that the lower portion is smaller than the upper portion in the middle of the upper and lower portions, and is further formed so as to increase toward the lower side. That is, the lower inside of the second attachment portion 73b is formed in a conical shape. A mounting hole 73e corresponding to the same position as the mounting hole 73d provided in the first mounting portion 73a is provided in the outer peripheral portion of the second mounting portion 73b.

  The contact portion 73c is provided in the second attachment portion 73b, and is configured by a spring formed by winding a wire rod in a spiral shape. Therefore, the contact part 73c is formed so that expansion and contraction is possible. The outer diameter of the contact portion 73c is set to be the largest at the lowest position and the smallest at the midway portion. Furthermore, the outer diameter of the upper part of the contact part 73c is larger than the middle part in the vertical direction at the uppermost position. That is, the middle part of the contact part 73c is formed to be a reduced diameter part having a smaller diameter than the upper part and the lower part, and the lower part is formed in a conical shape.

  When attaching the contact part 73c to the second attachment part 73b, the upper part of the contact part 73c having a diameter larger than that of the middle part of the contact part 73c has the same diameter as that of the reduced diameter part. Insert from. And in the upper part of the 2nd attachment part 73b, the upper part of the contact part 73c contacts the upper part of the 2nd attachment part 73b by returning the upper part of the contact part 73c to the original diameter, and the contact part 73c is 2nd attachment. It is formed so as not to fall out from the portion 73b. That is, the upper part of the contact part 73c is locked to the reduced diameter part of the second attachment part 73b, and a gap is formed between the lower inner periphery of the second attachment part 73b and the lower outer periphery of the contact part 73c.

  In a state where the contact portion 73c and the second attachment portion 73b are engaged, the second attachment portion 73b is coaxially inserted into the lower portion of the first attachment portion 73a from below, and the attachment hole 73d and the attachment hole 73e. A bolt 73f is inserted into the first mounting portion 73a to be fixed. In a state where the second attachment portion 73b and the first attachment portion 73a are fixed, the second attachment portion 73b is provided so as to protrude downward from the lower end surface of the first attachment portion 73a.

  The engaging portion 9 shown in FIG. 2 temporarily restricts the raising of the planting rod 72 when the planting push-out portion 7 (planting push-out body 70) rises after the planting of the seed ball G is finished. The guide pipe 71 is raised first, and the seed ball G in the holding body 73 is forcibly pushed out by the planting rod 72. As described above, a part (one) of the engaging portion 9 is provided on the fixing member 77 of the planting extrudate 70, and the other engaging portion 9 is provided on the swinging portion 6. The planting rod 72 is moved relative to the guide pipe 71 depending on the engagement state of the engagement portions 9 provided at these two locations.

  The guide unit 8 is a structure for synchronizing the rearward movement of the planting pusher 7 and the holding hole means 2 at the planting position 17 b, and is arranged at the lower part of the planting unit 17.

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

  When the holding hole means 2 reaches a predetermined position of the planting position 17b, it contacts the contact of the limit switch to operate the crank driving unit. Then, a part of crank drive part is moved up and down.

  A part of the crank drive part is attached to the attachment member 76 of the planting extrudate 70. Therefore, the planting extrudate 70 moves up and down in conjunction with the vertical movement of a part of the crank driving unit. Further, in conjunction with the movement of the swinging portion 6 in the front-rear direction, the planting extruded body 70 moves in the front-rear direction about the rotation support shaft 60. That is, the planting extrudate 70 moves in the vertical direction while moving in the front-rear direction.

  That is, the planting pushing part 7 moves up and down by the operation of the crank driving part. When the planting pusher 7 is moved downward by the operation of the crank driving unit (see FIG. 7), the seed balls G are planted in the field.

  On the other hand, at this time, the holding opening means 2 covers the field by the outer end of the drive arm 25 being brought into contact with the cam body arranged at the planting position 17b and the opening body 26 rotating outward. Opening portions are formed in the multi-sheet 10 thus formed.

  Thereafter, as shown in FIG. 6, the holding body 73 of the planting extruded body 70 moving downward is inserted into the holding hole means 2 from above and the seed ball G being held in the seed ball holder 21. Press down from above. At this time, the holding body 73 presses the holding plate 211 of the seed ball holder 21 and pushes it downward to cancel the holding of the seed ball G by the holding plates 211, 212, 213, 211, and the contact portion of the holding body 73 73c contacts the seed ball G. Here, the contact portion 73c moves upward while the seed ball G comes into contact with the inside of the second attachment portion 73b, and the outer peripheral surface of the contact portion 73c is located below the second attachment portion 73b. It rises until it comes into contact with the inner peripheral surface or comes into contact with the pressing portion 72a of the planting rod 72. Then, the planting extrudate 70 moves downward, and as shown in FIG. 7, the planting extrudate 70 reaches the lowest position, and at the same time, to the field below the opening of the multi-sheet 10. The seed ball G falls and is planted.

  Thereafter, when a part of the crank driving unit moves upward, the planting extrusion unit 7 (planting extrusion body 70) connected thereto is moved upward. At this time, one of the engaging portions 9 provided in the swinging portion 6 engages with the other of the engaging portions 9 fixed to the fixing member 77 of the planting push-out portion 7, so that the upper end of the fixing member 77 is Is pressed, and the movement of the planting rod 72 connected to the fixing member 77 is restricted. Due to this restriction, the fixing member 77, the receiving member 77a connected to the fixing member 77 and the planting rod 72 stop moving upward, and the guide pipe 71 (holding body 73) fixed to the mounting member 76 is moved upward. Move to. At this time, the urging member 75 is restricted from moving upward by the stopped receiving member 77a, and is pressed from below by the attachment member 76, whereby the vertical length thereof is compressed. That is, the planting rod 72 cannot move upward by the compressed length of the biasing member 75, and is inserted downward with respect to the holding body 73 as shown in FIG. The tip of the planting rod 72 is further inserted into the contact portion 73c. And the press part 72a fixed to the planting rod 72 presses the upper end part of the contact part 73c, and moves the contact part 73c to the reduced diameter part of the 2nd attachment part 73b reliably.

  At this time, even if the seed ball G adheres to the inside of the contact portion 73c, the tip of the planting rod 72 is further inserted into the contact portion 73c, so that the upper portion of the seed ball G contacts and moves downward. The seed ball G can be separated from the contact portion 73c by being pushed out (the position of the tip of the planting rod 72 in FIGS. 7 and 8 is compared with the position of the contact portion 73c). When the seed ball G moves away from the contact portion 73c, the contact portion 73c vibrates in the same way as its diameter decreases due to its own elasticity, and even if soil or the like is attached to the contact portion 73c, it is shaken off by the vibration. The And when the press part 72a in the front-end | tip part of the planting rod 72 presses the upper end part of the contact part 73c, the contact part 73c further vibrates and can shake off the deposit | attachment of the contact part 73c.

  After the holding body 73 (the first attachment portion 73a and the second attachment portion 73b) connected together with the guide pipe 71 rises by a predetermined height, the restriction on the upward movement of the engaging portion 9 relative to the planting rod 72 is released. Then, the planting rod 72 moves upward relative to the guide pipe 71 by the biasing force of the biasing member 75. Then, the tip of the planting rod 72 in the contact portion 73c moves upward as shown in FIG. In the meantime, the guide pipe 71 and the holding body 73 are lifted in conjunction with a part of the crank drive portion. And when a part of crank drive part reaches the top, the planting extrusion body 70 is located in the top.

  When the holding body 73 is raised, foreign matter (attachment) such as soil may adhere to the contact portion 73c immediately after planting, but the contact portion 73c and the second attachment portion are caused by the upward movement of the holding body 73 itself. The contact portion 73c swings in the gap between the contact portion 73b and vibration is generated. With this movement, the contact portion 73c swings and the deposits such as soil can be shaken off.

  Further, as the planting rod 72 rises with respect to the guide pipe 71, the tip of the planting rod 72 is positioned higher than the contact portion 73c than before the rise (comparison between FIGS. 8 and 9). By the movement of the planting rod 72, the contact portion 73c is swung, and the attached matter such as soil attached to the contact portion 73c is shaken off.

  Then, the planting extrudate 70 is returned forward about the rotation support shaft 60 by the guide portion 8 described above, and the guide pipe 71 is positioned above the new holding hole means 2 holding the seed ball G. To do.

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

  Here, when the second mounting portion 73b of the holding body 73 is made of a soft member such as rubber, soil or the like may enter the gap with the first mounting portion 73a, and the second mounting portion 73b may be deformed. . Due to the deformation of the second attachment portion 73b, the seed ball G was not properly planted, and the seed ball G could not be stably planted in the field.

  Since the second mounting portion 73b is not easily deformed because the second mounting portion 73b is made of a hard member such as resin as in the present embodiment, the second mounting portion 73b and the first mounting portion are not easily deformed. Foreign matter such as soil does not enter the gap with 73a. Accordingly, the seed ball G is not improperly planted due to the deformation of the second mounting portion 73b, and the seed ball G is stably placed on the holding body 73. Can be appropriate.

  Furthermore, since the contact part 73c is hold | maintained through the clearance gap between the inner surfaces of the 2nd attachment part 73b, when the contact part 73c rock | fluctuates with an inertial force, it vibrates and adhering substances, such as soil Shake off. Furthermore, since the contact portion 73c is formed in a spiral shape, the contact portion 73c can expand and contract both in the vertical direction and in the radial direction. Accordingly, the contact portion 73c can be deformed and held so as to follow the outer shape of the seed ball G, and the seed ball G held in the holding hole opening means 2 in an appropriate posture can be planted as it is in an appropriate posture on the field. Can do. As a result, the postures of the various spheres G planted in the field are improved, and the crops grow uniformly.

  The contact portion 73c is locked to the second attachment portion 73b by contacting the upper portion of the contact portion 73c with the upper portion of the second attachment portion 73b, but the upper portion of the contact portion 73c is fixed to the second attachment portion 73b. You may arrange. In this case, since the planting rod 72 comes into contact with the contact portion 73c and swings, the deposits such as soil attached to the contact portion 73c can be shaken off.

The planting machine 1 of the present embodiment includes a traveling unit 14, a holding unit (holding hole unit 2) that holds the seed ball G, and the seed ball G that is held by the holding unit (holding hole unit 2). An extruding means for planting in a field, and a planting unit for planting a seed ball G into a field while traveling,
The extrusion means includes
A guide pipe 71;
A planting rod 72 slidably provided in the guide pipe 71;
A holding body 73 attached to the tip of the guide pipe 71 and moving the seed ball G held in the holding means (holding hole means 2) to the field;
The holding body 73 is made of a hard material.

  By making the holding body 73 a hard member, it is possible to prevent the holding body 73 from being deformed, and it is possible to prevent foreign matters such as soil from adhering to the gap due to the deformation. Therefore, the maintenance of the planting part 17 due to the adhesion of soil can be reduced, the setting of the seed ball G with respect to the holding body 73 due to the absence of soil can be stabilized, and the planting posture of the seed ball G can be made appropriate.

The holding body 73 is
A first attachment portion 73a for attachment to the guide pipe 71;
A contact portion 73c for holding a seed ball G held by the holding means (holding hole means 2);
A second attachment portion 73b for attaching the contact portion 73c to the first attachment portion 73a;
The contact portion 73c is formed in a spiral shape.

  With this configuration, even if soil or the like adheres to the spiral contact portion 73c, the contact portion 73c can be vibrated by the movement of the planting push-out portion 7 to remove the attached soil or the like. Therefore, the maintenance for removing the deposits can be reduced, the setting of the seed ball G with respect to the planting part 17 due to the absence of soil or the like can be stabilized, and the planting posture of the seed ball G can be made appropriate.

  The planting rod 72 is provided with a pressing portion 72a that can come into contact with the contact portion 73c.

  By comprising in this way, the contact part 73c and the press part 72a of the planting rod 72 can give a vibration to a contact, and deposits, such as soil adhering to the contact part 73c, can be shaken off.

1 Planting machine 2 Holding hole means (holding means)
7 Planting Extrusion Section 14 Traveling Section 17 Planting Section 71 Guide Pipe 72 Planting Rod 72a Pressing Section 73 Holding Body 73a First Mounting Section 73b Second Mounting Section 73c Contact Section G Seed Ball

Claims (3)

A planting unit having a traveling unit, a holding unit for holding the seed ball, and an extruding unit for planting the seed ball held by the holding unit into the field, and moving the seed ball to the field while traveling A planting machine for planting,
The extrusion means includes
A guide pipe,
A planting rod slidably provided in the guide pipe;
A holding body attached to the tip of the guide pipe and moving the seed ball held by the holding means to the field;
The said holding body is comprised with a hard material, The planting machine characterized by the above-mentioned. The holder is
A first mounting portion for mounting on the guide pipe;
A contact portion for holding a seed ball held by the holding means;
A second attachment portion for attaching the contact portion to the first attachment portion,
The planting machine according to claim 1, wherein the contact portion is formed in a spiral shape.   The planting machine according to claim 2, wherein the planting rod is provided with a pressing unit capable of contacting the contact unit.

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