JP6193064B2 - Ride type rice transplanter - Google Patents

Description

  The present invention relates to a riding type rice transplanter in which a spare seedling stage is provided near the front of the machine body.

  In a riding type rice transplanter, it is generally known to provide a spare seedling stage on which a seedling box containing a spare seedling (mat seedling) is placed on the side near the front of the aircraft (for example, a patent) Reference 1). In the riding type rice transplanter having such a reserve seedling stand, when there are few seedlings on the seedling stand during the planting operation, a scraper (seedling rake plate) is used from the seedling box placed on the spare seedling stand. Since the seedlings can be picked up and replenished to the seedling stage, not only can the efficiency of planting work be improved, but also a spare seedling stage can be built from the heel by providing a spare seedling stage near the front of the aircraft. This makes it easier to supply spare seedlings.

  The preliminary seedling stage is usually provided with a resin holder on which a seedling box is placed, and a wall rising from the placement surface of the seedling box is integrally formed at the front end portion, the rear end portion, or the left and right end portions of the holder. This prevents the seedling box from slipping off from the spare seedling stage. In addition, in the walking type rice transplanter, in order to supply the seedling box containing the spare seedling from the rear side of the aircraft to the preliminary seedling stand and to remove the seedling box while preventing the position and lifting of the spare seedling, A non-slip stopper is provided on the front and back sides of the seedling placement surface and on both sides of the seedling placement stand to prevent the seedling box from being displaced, and a floating stopper is provided on the front side of the seedling placement surface to prevent the seedling box from lifting up. It is known to provide (for example, refer to Patent Document 2).

JP 2009-247298 A JP 2006-81552 A

  By the way, in the riding type rice transplanter, as described above, a preliminary seedling stand is provided near the front of the aircraft, and a seedling box containing the spare seedlings is moved forward from the cage or by an operator who has moved to the front of the aircraft. It is supplied from the side to the holder of the spare seedling stage. However, when the seedling box is placed on the holder, if the anti-slip wall provided at the front end of the holder is raised, the seedling box must be lifted high, and the bottom surface of the seedling box is easily caught on the wall. Prevents seedling supply work.

  Moreover, when providing the floating stopper which suppresses the floating of a seedling box as described in Patent Document 2 on the front side of the holder, the seedling box must be inserted from the rear side beyond the stopper to the front side and supplied. Therefore, it is difficult to supply the spare seedling from the front side, and it cannot be practically employed in the riding type rice transplanter. Further, when the spare seedling is picked up from the seedling box using the scraper, the floating stopper stops and the spare seedling cannot be picked up, so the spare seedling is taken out after lifting the seedling box once from the holder. As a result, a loss occurs in the seedling replenishment time to the seedling stage.

  In the riding type rice transplanter described in Patent Document 1, when the preliminary seedling is scooped up from the seedling box using a scraper, the rear end of the preliminary seedling is approached from the rear side of the body of the holder on which the seedling box is placed. The scraper is inserted between the root of the preliminary seedling and the bottom of the seedling box, and the scraper is pushed forward to remove the preliminary seedling from the seedling box while rooting. However, if the seedling has a good rooting, the force to push the scraper must be increased, and this pushing force may cause the seedling box to fall from the holder along with the spare seedling over the front wall of the holder. There are problems such as waste of time for collecting the dropped seedling boxes and damage of the spare seedlings.

  Therefore, in view of the above-described problems, the present invention makes it possible to smoothly perform the operation of supplying the spare seedlings to the preliminary seedling stage without any change from the conventional ones, It is an object of the present invention to provide a riding type rice transplanter that can be surely scooped from a seedling box placed on a holder of a preliminary seedling stand using a scraper.

In order to solve the above-mentioned problem, the present invention firstly connects a planting device having a seedling stand at the rear part of the machine body so as to be movable up and down, and places a seedling box containing a spare seedling near the front part of the machine body. In a riding type rice transplanter that has a spare seedling stage to be mounted, scrapes a preliminary seedling from a seedling box placed on the spare seedling stage by a scraper, and replenishes the seedling stage with seedlings, the preliminary seedling stage is a machine body. Frame, a stay fixed to the upper and lower stages of the frame, and a holder attached to the stay . The outer wall provided around the seedling box mounting surface prevents the seedling box from falling. The anti-slip stopper is provided with an action portion on the tip side that performs the anti-slip action over substantially the entire width of the seedling box, and the anti-slip stopper acts on the seedling box or the seedling, and Attaching switchable to non-operating state and working state Is a non-slip action state in which the action part receives the side wall of the front edge of the seedling box on the front wall of the holder from the front side and prevents the seedling box from falling over the outer wall of the holder, An empty box holding state in which the seedling box receiving portion by the action portion is changed to the upper surface of the seedling box which is stacked in plural so that the seedling box which has been emptied by scraping the seedling with a scraper is prevented, and the holder In order to be able to change to a roll seedling holding state in which the receiving height is changed so as to directly receive the preliminary seedling wound in a roll shape on the action portion, the preliminary seedling is rotatably attached to the stay .

Further, according to the second aspect of the present invention, the anti-slip stopper is detachably attached to the tip of the stay, and is fitted to the tip of the stay to receive the end face of the holder to be attached to the stay of the holder. It is characterized by being configured to prevent the slipping off .

According to riding rice transplanter of the present invention, the seedling box placed on the holder of the preliminary seedling load platform, and slip by slip stopper mounted freely switch to create a state and a non-activated condition, preliminary Naeno The fall from the holder of a stand can be prevented. Therefore, even if the seedling has good rooting, it can be reliably scooped out from the seedling box placed on the holder of the preliminary seedling stand using a scraper, and time is wasted in collecting the seedling box that has fallen from the holder. Or the problem of unnecessarily damaging the reserve seedling and making it unusable.

Note that by switching to a non-activated condition the sliding Ritome stopper from the working state, the spare seedling weighing platform can be used without any change to normal preliminary seedling mounting table. Therefore, it is possible to smoothly supply the spare seedling to the spare seedling mounting table without any effort from the front side of the machine body without being obstructed by the anti-slip stopper. Further, in this case, since the existing anti-slip wall formed on the holder can sufficiently prevent the seedling box from falling from the holder unless the seedling is well rooted, the above-mentioned seedling box can be collected or reserved. No seedling damage occurs.

In addition, the anti-slip stopper receives the side wall of the front edge of the seedling box from the front side on the front wall of the holder so that it does not get in the way when the spare seedling is scooped up from the seedling box by the scraper. If it is configured to receive only the side edge of the seedling box near the front of the aircraft in a non-slip action state that prevents it from falling over the outer wall of the aircraft, the spare seedling from the front side of the aircraft to the spare seedling platform than usual It can be supplied by lifting it slightly higher. Moreover, when the spare seedling is picked up from the seedling box placed on the holder of the spare seedling stand using a scraper, the stopper is divided into the spare seedlings, as in the case of providing a stopper for suppressing the lifting of the conventional seedling box. Therefore, the stopper blocks the upper part of the spare seedling, so that it cannot be scooped up directly, and there is no problem that it takes time to replenish the spare seedling on the seedling stage. The seedling can be supplied to the table.

  Furthermore, as one of the placement forms of the spare seedlings with respect to the spare seedling stage, the preliminary seedlings previously picked up from the seedling box can be easily rolled and held, and this can be directly attached to the holder of the preliminary seedling stage. Alternatively, a plurality of the seedlings may be placed side by side, and the spare seedlings taken out from the holder may be supplied as they are without using the scraper when the seedlings are replenished to the seedling stage. However, since the anti-slip wall of the holder of the spare seedling stage has only a height that is assumed to prevent the seedling box from slipping, the preliminary seedling falls from the holder as it is due to pitching of the airframe during planting work or vibration of the airframe. There is a fear.

Thus, if the height of the anti-slip stopper is changed to be high so that the pre-seed seedling wound in a roll shape is directly received by the anti-slip stopper, the pre-seed seedling can be prevented from falling from the holder. Note that when the anti-slip stopper is provided near the front of the holder, it is assumed that the spare seedling falls from the rear side of the holder where the stopper does not act. based on the direction, for example, by placing in the direction of winding of the preliminary seedling can be solved on the front side there is a slip stopper may a little to Turkey from falling from the rear side.

  In addition, when a spare seedling is picked up by a scraper and the seedling is replenished to the seedling stand, the empty seedling box left on the holder becomes light and may fall from the holder due to pitching or running vibration of the aircraft . For this reason, in Patent Document 1, an empty box presser is provided exclusively, resulting in an increase in cost. Therefore, in the present invention, the slip stopper is also used as an empty box retainer while suppressing the cost increase by changing the receiving position of the seed stopper of the slip stopper from the side edge near the front of the machine body to the upper surface. can do.

  Then, when the anti-slip stopper is detachably attached to the tip of the stay of the preliminary seedling stage, and the end face of the holder fitted and attached to the tip of the stay is received by the anti-slip stopper, A dedicated bracket for mounting the stopper becomes unnecessary, and the slip stopper can be easily attached to the stay instead of a stopper such as a rubber cap for preventing the holder from coming off from the stay. In addition, since the anti-slip stopper serves as a holder for the holder, it is not necessary to separately prevent the holder from being removed.

It is a side view of a riding type rice transplanter. It is a top view of a riding type rice transplanter. It is the perspective view seen from the diagonally forward side of the left side seedling stand. (A) is the perspective view seen from the diagonal front side which shows the attachment state of the anti-slip | skid stopper of the left side seedling stand, (b) is a top view, (c) is a side view. It is a side view which shows the use condition of a non-slip stopper, (a) is the state which prevents fall of a seedling box, (b) is the state which prevents fall of the reserve seedling wound in roll shape, (c) is an empty box It shows the state which prevents the fall of. (A) is the perspective view seen from the diagonally forward side which shows the attachment state of another embodiment of the slip stopper of the left side seedling stand, (b) is a top view, (c) is a side view.

  Embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the riding type rice transplanter 1 is configured by connecting a planting device 6 to a rear portion of a machine body 4 having a front wheel 2 and a rear wheel 3 through a link mechanism 5 so as to be movable up and down. Yes. The airframe 4 is configured by integrally connecting an engine frame 7, a chassis frame 8, a transmission case 9, a front axle case (not shown), a rear axle case 10, and the like. The engine frame 7 provided at the front of the airframe 4 is An engine (not shown) is mounted on the transmission case 9 via a vibration-proof rubber.

  A bumper 11 is attached to the front portion of the engine frame 7 and left and right pipe frames (not shown) are extended toward the rear upper side so as to surround the engine. The rear end of the pipe frame is attached in the middle of a steering column (not shown) that rises from a torque generator (power steering) attached to the transmission case 9, and this pipe frame has a panel cover that includes a fuel tank and an instrument panel. 12 is attached. The engine and the fuel tank are covered by a bonnet 13, a panel cover 12, and a panel rear cover 14 provided on the rear side, and a steering handle 16 having a base covered by a column cover 15 is provided above the panel cover 12. .

  Further, a transmission case 9, a front axle case, a rear axle case 10, a battery (not shown), a driver's seat 17 and the like are attached to the chassis frame 8 located behind the engine frame 7. It is transmitted to a hydrostatic continuously variable transmission (HST) (not shown) attached to the transmission case 9 by a pulley and a belt and a hydraulic pump. The power shifted by the hydrostatic continuously variable transmission is transmitted to the front axle and the rear axle 10 via the main clutch mechanism and the subtransmission mechanism built in the transmission case 9, and finally the front wheels 2 and the rear wheels 3 are transmitted. Is driven. Further, the power transmitted to the main clutch mechanism is also distributed to the inter-gear transmission mechanism built in the transmission case 9, and the planting device 6 is connected from the inter-gear transmission mechanism via the planting PTO shaft (not shown), the propeller shaft 18 and the like. Is transmitted to.

  On the engine frame 7 and the chassis frame 8, a plurality of steps 19, 20, 21, and 22 that are floor surfaces when an operator moves on the machine body are attached. These steps include front steps 19, 19 provided on the left and right sides of the engine from the front end of the fuselage 4 to the rear end of the panel rear cover 14, a floor step 20 that forms a floor surface in front of the driver's seat 17, and a floor The left and right side steps 21 and 21 disposed on the side of the step 20 and the rear side steps 22 and 22 positioned on the left and right sides of the driver's seat 17 and formed one step higher than the floor step 20 are configured. Each step is provided with a step mat 23 as appropriate.

  On the other hand, the planting device 6 is a five-row planting, in which the seedlings are placed in a slanting manner in front and rear, and a plurality of mat seedlings are placed, and seedlings for each strain are taken from the lower end of the seedling placement stand 24. A rotary planting mechanism 26 that is scraped and planted by a planting claw (beak) 25, a float 27 that leveles planting sites while leveling a running trace and a turning trace, and the like are provided. More specifically, the power from the engine passes through the transmission case 9 and enters the drive case 28 of the planting device 6 through the planting PTO shaft and the propeller shaft 18 and the like, and the seedling stage 24 is driven to slide back and forth in the left and right directions. At the same time, the vertical feeding belt 29 of the seedling mounting table 24 is rotationally driven to intermittently feed the mat seedling downward. Further, the rotary case 31 is rotationally driven from the drive case 28 through the planter case 30 constituting the rotary planting mechanism 26, and the planting claws 25 attached to the planter arm 32 attached to the rotary case 31 are attached to the seedling stage 24. The seedlings are scraped one by one from the lower end, and the scraped seedlings are pushed out with a fork 33 to plant the seedlings in the field.

  Further, on both the left and right sides of the airframe 4 near the front, there are provided spare seedling platforms 34 on which six seedling boxes B containing spare seedlings A (mat seedlings) can be placed on one side, twelve in total. ing. As shown in FIGS. 3 and 4, the preliminary seedling stage 34 is composed of a front pipe 35 a and a rear pipe 35 b which are connected to the bumper 11 and the chassis frame 8 and have a lower end portion standing on the side of the engine. A plurality of upper and lower stage stays 38, 38,... With a boss 38a fixed to the inverted U-shaped frame 35 and pins 35c, 35c,. And the U-shaped bars (round bars) 38b, 38c of the stay 38 are fitted to bosses 39a, 39a,. And a holder 39 which is secured with a stopper such as a rubber cap 40 attached to the part, and four holders 39 are attached to the outside of the rear pipe 35b and two to the inside.

  The holder 39 is integrally formed of synthetic resin, and a front outer wall 39c, a rear outer wall 39d, and an inner wall 39e are raised around a mounting surface 39b on which the seedling box B of the holder 39 is placed. Among these, the front outer wall 39c and the rear outer wall 39d receive the corner portion where the front end and the side end of the leg portion k of the seedling box B and the rear end and the side end intersect with each other, and the inner wall 39e The other end of the leg k of the seedling box B is received, and the fall of the seedling box B from the holder 39 is prevented as a whole. The left and right spare seedling platforms 34 are connected to each other via a horizontal pipe 42 fixed to the upper portions of the rear pipes 35b and 35b by a stop bolt 41, and each spare seedling platform 34 has a scraper (seedling). A holder 43 for storing the rake plate (S) is provided. Incidentally, the scraper S is composed of a rectangular flat plate formed of a synthetic resin or a steel plate having a grip portion h on one side in the longitudinal direction, and is used for picking up and carrying a spare seedling from the seedling box B. It is.

  Next, the non-slip stopper 44 for preventing the seedling box B according to the present invention from falling from the holder 39 will be described. As described above, the holder 39 is normally prevented from being removed by the rubber caps 40, 40 attached to the distal ends of the U-shaped bars 38b, 38c of the stay 38. However, when the anti-slip stopper 44 is mounted on the spare seedling stage 34, the rubber cap 40 provided near the front of the machine body is removed, and the anti-slip stopper 44 is replaced with the tip of the U-shaped bar 38b instead of the rubber cap 40. Attach to the part. More specifically, the anti-slip stopper 44 is provided with a boss 44a at a base portion which is formed in an L shape by bending the base side of a round bar or pipe, and this boss 44a is provided at the tip of the U-shaped bar 38b. After the insertion, the fixing bolt 45 is used for fixing. Further, by attaching and fixing the boss 44 a, the end surface of the holder 39 is received by the boss 44 a and is prevented from coming off from the stay 38.

  As a result, the anti-slip stopper 44 extends horizontally from the top end of the front outer wall 39c of the holder 39 to the vicinity of the front end of the inner wall 39e on the other side. Thus, the side edge portion a on the front side of the seedling box B is received over substantially the entire width (action state). Further, when the anti-slip stopper 44 is not required, the anti-slip stopper 44 can be removed by a procedure reverse to that described above. Alternatively, once the anti-slip stopper 44 is removed, the anti-slip stopper 44 can be retracted from the upper surface of the holder 39 by replacing the operating portion 44b so as to face the lower surface of the holder 39 (non-operating state: FIG. 5 (a) C posture reference).

  And in embodiment of this invention comprised as mentioned above, when starting planting work or when replenishing seedlings, the mat seedling A picked up by the scraper S from the seedling box B is placed on the scraper S. The operator moves on the steps 19, 20, 21, and 22 of the machine body 4 to replenish the seedling mounting table 24, and also the spare seedling is transferred directly from the cocoon or to the front part of the machine body 4. The seedling box B containing A is placed on the holder 39 of the preliminary seedling stage 34 from the front side of the machine body, and the planting operation is started or resumed. When the seedlings on the seedling stage 24 are reduced during the planting operation, the operation is interrupted and the seedlings stage 24 is replenished with the preliminary seedling A. In that case, the scraper S is inserted into the seedling box B placed on the holder 39 of the preliminary seedling stage 34 to scoop the preliminary seedling A, and the seedling stage 24 is replenished by moving similarly on the steps. .

  By the way, the mat seedling A that has been grown by putting the floor soil in the seedling box B has the advantage that it becomes difficult to be deformed due to root entanglement in the floor soil and is easy to handle. Since the roots protrude from the provided drainage holes, there is also a drawback that when the mat seedling A is scooped up by the scraper S, the roots must be cut. In the case of a seedling with a good rooting, a considerable amount of force is required for root cutting, and this root cutting operation is performed by the scraper S while the seedling box B is placed on the holder 39 of the preliminary seedling stage 34. The seedling box B may fall from the holder 39 together with the spare seedling A over the front outer wall 39c of the holder 39. Therefore, in such a case, the anti-slip stopper 44 is mounted on the spare seedling stage 34 in advance.

  In this case, the anti-slip stopper 44 is fixed so that the action part 44b receives the side edge part a on the front side of the seedling box B, particularly the front face thereof, as shown in FIG. Can receive the seedling box B which is strongly pushed to the front side of the machine body via the scraper S, and can prevent the seedling box B from falling from the holder 39. Moreover, since the action part 44b does not face on the mat seedling A accommodated in the seedling box B, the rooted mat seedling A can be picked up and transported by the scraper S as it is. The replenishment work to the seedling stage 24 can be performed smoothly.

  Moreover, the anti-slip stopper 44 has a working portion 44b formed of a round bar or pipe extending horizontally from the upper end of the front outer wall 39c of the holder 39 to the vicinity of the front end of the inner wall 39e on the other side. When the seedling box B containing A is placed on the holder 39 of the spare seedling stage 34 from the front side of the machine body, the seedling box B is placed on the action part 44b and pushed into the holder 39 while sliding on the action part 44b. As a result, the seedling box B can be placed on the holder 39 quickly and smoothly without the seedling box B being caught on the front outer wall 39c of the holder 39. In order to place the seedling box B on the holder 39 while being slid on the non-slip stopper 44, the seedling box B must be lifted slightly higher than that without the anti-slip stopper 44. Since the action portion 44b of 44 has only a diameter that is about the height of the side edge portion a of the seedling box B, it does not require extra labor, and when viewed as a whole, the above-described advantages are superior. It is.

  Further, the anti-slip stopper 44 is fixed to the stay 38 with a stop bolt 45, and the height of the action portion 44b can be adjusted by changing the fixing angle. That is, as shown in FIG. 5 (b), when the preliminary seedling A that has been previously picked from the seedling box B and wound in a roll shape with the leaf side inside and the root side outside is placed on the holder 39 as it is, If the height of the action portion 44b is increased so that the preliminary seedling A is received directly by the anti-slip stopper 44, the preliminary seedling A can be prevented from falling from the holder 39. In this case, the fall of the preliminary seedling A from the rear side of the holder 39 is reduced by placing the preliminary seedling A in the direction in which the winding of the preliminary seedling A can be unwound on the front side where the anti-slip stopper 44 exists. be able to.

  Further, as shown in FIG. 5 (c), the fixing angle of the anti-slip stopper 44 is changed, and the receiving position of the seedling box B of the anti-slip stopper 44 is changed from the front side of the side edge a to the seedling box B. By changing to the upper surface of the side edge portion a, the anti-slip stopper 44 can be made to function as a pressing body when the seedling boxes B (empty boxes) are stacked in one to three stages, for example, and the pitching of the airframe 4 Further, the vertical movement of the empty box B, which may fall from the holder 39 due to the vibration of traveling, is suppressed by the anti-slip stopper 44, and the fall from the holder 39 can be prevented.

  Next, another embodiment of the non-slip stopper 44 for preventing the seedling box B from falling from the holder 39 will be described. As shown in FIG. 6, the anti-slip stopper 44 of another embodiment is fixed to the stay 38 at both ends by using a fixing bolt 45. That is, the anti-slip stopper 44 is formed by bending both ends of a round bar or pipe into an L shape, and includes bosses 44a and 44a at respective base portions. Then, the boss 44a on one side is inserted into the distal end portion of the U-shaped bar 38b as before, and then fixed using the retaining bolt 45, but the boss 44a on the other side is the base side of the U-shaped bar 38b. After being inserted into a separately provided pin (not shown), the fixing bolt 45 is used for fixing. Therefore, since both ends of the anti-slip stopper 44 of the other embodiment are fixed to the stay 38, the action portion 44b can be reliably received by the seedling box B without being bent by the pressing force of the seedling box B.

  In this case, since it is necessary to insert both bosses 44a, 44a of the anti-slip stopper 44 into the tip of the U-shaped bar 38b and the pin on the base side, the shape of the base side of the U-shaped bar 38b is changed. For example, with the boss 44a on the other side of the anti-slip stopper 44 inserted deeply into the pin, the boss 44a on one side faces the tip of the U-shaped bar 38b, and the anti-slip stopper 44 is attached back to the pin side. Like that. In any embodiment, the anti-slip stopper 44 is configured to be detachably attached and fixed to the stay 38. For example, the anti-slip stopper 44 is attached to the frame 35 or the holder 39 of the spare seedling stage 34, It can change suitably so that the seedling box B can be received, and this invention is not limited to the said embodiment.

DESCRIPTION OF SYMBOLS 1 Riding type rice transplanter 4 Body 6 Planting device 24 Seedling stand 34 Spare seedling stand 35 Frame 38 Stay 39 Holder 44 Non-slip stopper

Claims (2)

A planting device provided with a seedling stage at the rear part of the machine body is connected so as to be movable up and down, and a preliminary seedling stage for placing a seedling box containing a spare seedling is placed near the front part of the machine body. In the riding type rice transplanter for picking up the spare seedling from the placed seedling box with a scraper and supplying the seedling on the seedling stage,
The preliminary seedling stage includes a frame erected from the machine body, a stay fixed to a plurality of upper and lower stages of the frame, and a holder attached to the stay,
The holder is configured to prevent the seedling box from falling at the outer wall provided around the seedling box mounting surface,
A non-slip stopper is provided with a non-slip stopper on the tip side that covers the entire width of the seedling box, and the anti-slip stopper can be switched between a working state acting on the seedling box or the seedling and a non-working state. Attach to
In the action state, the action part receives the side wall of the front edge of the seedling box on the front wall of the holder from the front side, and prevents the seedling box from falling over the outer wall of the holder. When,
In order to prevent the seedling box that has been emptied by scraping the spare seedling with a scraper, the empty box holding state that has been changed to the upper surface of the seedling box overlaid with a plurality of receiving points of the seedling box by the action part,
A roll seedling holding state in which the receiving height is changed so as to directly receive the preliminary seedling wound in a roll shape on the holder at the action part,
A riding type rice transplanter characterized in that it is pivotably attached to the stay so as to be changeable . The anti-slip stopper is detachably attached to the tip of the stay, and is configured to receive the end surface of the holder that is fitted and attached to the tip of the stay, and prevents the holder from coming off from the stay. The riding type rice transplanter according to claim 1, wherein the riding type rice transplanter is provided.

Images