JP4913700B2 - Seedling transplanter - Google Patents

Description

  The present invention relates to a seedling transplanting machine in which seedlings such as vine seedlings of sweet potato are planted in a field while running.

  Conventionally, this kind of seedling transplanting machine is, for example, a pair of planted bodies in which seedlings are planted on a traveling machine body by intermittent reciprocating motion toward a farm field as described in Patent Document 1 and the like. And a seedling transport mechanism for supplying seedlings one by one to the planted body in the planting device.

In addition to this, in the conventional seedling transplanting machine, the pair of planted bodies in the seedling planting mechanism first sandwiches the seedling with the planting blade at the tip of the planted plant in the middle of the descending movement toward the field. Then, the planting blade is plunged into the field while breaking through the multi-film covering the field, so that seedlings are planted.
JP 2004-113077 A

  However, the conventional seedling transplanting machine has a configuration in which the planting blade of the planting mechanism of the seedling planting mechanism enters the field while breaking through the multi-film covering the field with the planting blade held so as to sandwich the seedling. Then, the planting blade of the planting body is configured to pierce the multi-film with the seedling sandwiched between and hold it, and then enter the field, so that when planting the seedling with the planting blade of the planting body, The piercing hole opened in the multi-film is limited to a very narrow range only by the planting blade penetrating the multi-film, and it cannot be enlarged, so that it is difficult to water the seedling after planting There was a problem.

  An object of the present invention is to provide a seedling transplanter that solves this problem without complicating the structure.

In order to achieve this technical problem, claim 1 of the present invention provides:
“A seedling planting mechanism having a pair of planted plants that are planted on a traveling machine by intermittent reciprocating motion toward the field, and a seedling that supplies the seedlings one by one to the planted body in the seedling planting mechanism. In a seedling transplanting machine comprising a transport mechanism,
At least one of the pair of planted bodies in the seedling planting mechanism is provided with a cutting blade for a multi-film covering the upper surface of the field so as to protrude upward at a portion of the planting blade at the tip of the planted body , and the cutting The attachment position of the blade with respect to the planting body is configured to be changeable in the reciprocating direction of the planting body . "
It is characterized by that.

  According to the configuration described in claim 1, when planting seedlings in the field, if the planting blades at the tips of both planted bodies enter the field with the seedlings held between them, At the same time, the cutting blade provided so as to protrude upward operates to enter the field and then come out of the field.

  Thus, the multi-film covering the field is cut by both the entry operation to the field by the planting blade and the removal operation from the field, and the entry operation to the field by the upward protruding blade. And in other words, the piercing hole opened by the planting blade in the multi-film is expanded (expanded) by the upward projecting cutting blade. In the multi-film, the break-through hole in the planting site of the seedling can be made larger than in the conventional case where the multi-film is broken through only by the planting blade of the planting body.

  In addition, it is only necessary to provide the cutting blade so as to protrude upward at the planting blade portion of the one planting body, and it is possible to achieve widening of the piercing hole for the multi-film with a very simple mechanism.

Moreover, the size of the piercing hole for the multi-film can be arbitrarily changed by changing the mounting position of the cutting blade.

  Embodiments of the present invention will be described below with reference to the drawings.

  The seedling transplanting machine 1 shown in these drawings is a walking type self-propelled working machine that is configured to plant vine seedlings in a sweet potato at regular intervals while traveling along the cocoon C in the field. , A pair of left and right front wheels 2 and rear wheels 3 traveling on both sides of the kite C, and a traveling machine body 4 supported by the both front wheels 2 and the two rear wheels 3 so as to straddle the kite C. The ridge C is covered with a multi-film D.

  In the traveling machine body 4, a front engine frame 6 on which an engine 5 is mounted, a central transmission case 7 that receives power from the engine 5, and a rear handle frame 8 are connected and fixed in the front-rear direction. Various devices to be described later are attached to the traveling machine body 4.

  That is, the traveling machine body 4 includes, as the various devices, a heel guide mechanism 9, a front wheel support mechanism 10, a rear wheel support mechanism 11, a heel height detection mechanism 12, a seedling transport mechanism from the front to the rear in the traveling direction. 13, a seedling planting mechanism 14, a pressure suppressing mechanism 15, and a driving operation unit 16 are mounted.

  The cocoon guide mechanism 9 is a device for guiding the traveling direction of the seedling transplanting machine 1 that travels along the cocoon C, and the cocoon guide roller 9a for contacting the left and right side surfaces (slopes) of the cocoon C is left and right. A pair is provided. The culm C is sandwiched between these culm guide rollers 9a, 9a, or rolled while being in contact with the slant surface, and the seedling transplanter 1 is driven in this state, so that the seedling transplanter 1 is driven by the driving operation. It is possible to drive along the heel C without control.

  The front wheel support mechanism 10 and the rear wheel support mechanism 11 are configured to freely move the traveling machine body 4 up and down relative to the front wheels 2 and the rear wheels 3, of which the rear wheel support mechanism 11 includes the A power transmission mechanism from the transmission case 7 to both the rear wheels 3 is provided, and is configured to travel forward by driving rotation of both rear wheels 3.

  The engine frame 6 of the traveling machine body 4 is provided with a single-acting hydraulic cylinder 17 for moving the traveling machine body 4 up and down relative to the front wheels 2 and the rear wheels 3. Is related to a lifting lever provided on the handle frame 8 and when this lifting lever is operated to the rear body raising position, the seedling transport mechanism 13, the seedling planting mechanism 14 and the pressure reducing mechanism 15 are moved from the mission case 7 When the hydraulic cylinder 17 is operated so as to move the traveling machine body 4 up to the highest position and the lifting lever is operated to the front machine lowering position with the power transmission to the transmission case OFF, the transmission case 7 The hydraulic cylinder 17 descends the traveling machine body 4 in a state where power transmission from the seedling conveying mechanism 13, the seedling planting mechanism 14 and the pressure suppressing mechanism 15 is turned on. And sea urchin operated, and is configured so as to have a predetermined planting work state.

  The seedling planting depth in this seedling planting operation state is based on the detection of the cocoon height by the cocoon height detection mechanism 12, and the cocoon height detection mechanism 12 has a configuration as shown in FIG. The sensor roller 12a is in contact with the upper surface of the kite C, and the sensor arm 12b is supported on the engine frame 6 and supports the sensor roller 12a. The height of the seedling, that is, the planting depth of the seedling, is configured to be kept substantially constant.

  Next, the seedling transport mechanism 13 will be described. As shown in FIGS. 3 and 4, the seedling transport mechanism 13 is configured separately from the traveling machine body 4, and can be attached to the traveling machine body 4 after assembly. The seedling transport mechanism 13 is disposed behind the mission case 7 and above the handle frame 8.

  The seedling transport mechanism 13 is configured to be driven by the rotation of the drive shaft 19 output from the mission case 7, and the seedling transport mechanism 13 includes a left and right side of the traveling machine body 4 as shown in FIG. A conveyance belt (endless conveyance body) 22 is provided that is wound between a pair of left and right guide shafts 20 and 21 that are disposed so as to extend in the front-rear direction at both sides.

  The conveyor belt 22 is made of a flexible material such as rubber, for example, and a plurality of seedling storage portions 23 are arranged on the outer peripheral surface thereof at a predetermined pitch P in the longitudinal direction of the conveyor belt 22. Each of the seedling storage portions 23 is provided with a grip portion 24 for detachably holding the vine seedling A.

  The conveyor belt 22 is intermittently provided at intervals of the pitch P of each seedling accommodating part 23 in the direction indicated by the arrow B when an operator supplies the seedling A to be placed on each seedling accommodating part 23 on the upper surface side. In the intermittent feed in the direction of the arrow B, the vine seedling A is conveyed to the two guide rollers 25 located at the approximate center of the lower surface. A vine seedling A supplied to each seedling container 23 is prevented from dropping from the seedling container 23 on the outer side of the section of the conveyor belt 22 from the one guide shaft 20 to the both guide rollers 25. A guide plate 26 for holding is provided.

  The seedling planting mechanism 14 reciprocates in the vertical direction along the movement locus 28 shown by a two-dot chain line in FIG. 1 by the swinging rotation of the rotating shaft 18 that is rotated by the output power from the transmission case 7. A pair of right and left planted bodies 27 is provided, and at the tips of both planted bodies 27, a plate-shaped planting blade 27a is provided so as to protrude downward.

  When both the planted bodies 27 are positioned at the upper limit of the upper end with the planting blades 27a at their tips open, the seedlings A are fed to the locations of the two guide rollers 25 by the intermittent feeding of the conveyor belt 22. And when the intermittent feeding is stopped, the planting blade 27a is closed and the vine seedling A is picked and moved downward to plant the vine seedling A so as to be pushed into the cocoon C. When returning to the original raised position, the conveyor belt 22 is configured to be interlocked with the intermittent feeding of the conveyor belt 22 so that the conveyor belt 22 intermittently feeds by one pitch P.

  Moreover, the said suppression body 15 is equipped with the suppression body 15a which moves up and down in response to the reciprocation to the up-down direction in the planting body 27 of the said seedling planting mechanism 14, The said planting body 27 of the vine seedling A with respect to the said cocoon C When the push-up planting is finished and moved upward, the pressure-reducing body 15a is configured to press and harden the planting site of the vine seedling A in the heel C by the downward movement.

  Then, on the upper surface of the tip of at least one planted body 27 among the two planted bodies 27, a cutting blade 30 configured in a triangle so as to protrude upward from the plate body is used for fastening a plurality of screws 31. And is detachably attached.

  In this case, the upper surface of the tip of the one planted body 27 is provided with a plurality of screw holes 32 in the longitudinal direction in which the mounting screws 31 of the cutting blade 30 are screwed. The mounting position of the cutting blade 30 can be changed along the longitudinal direction of one planting body 27 by screwing the mounting screw 31 into the screw hole.

  In this configuration, the pair of planting bodies 27 in the seedling planting mechanism 14 reciprocate up and down by driving the seedling transport mechanism 13, the seedling planting mechanism 14 and the pressure-reducing mechanism 15 while the traveling machine body 4 travels forward. Therefore, the seedling A can be planted at a predetermined interval with respect to the cocoon C in the field.

  When planting the seedlings, if the planting blades 27a at the tips of both planted bodies 27 enter the cocoon C with the seedling A sandwiched between them and then move out of the cocoon C, at the same time, they project upward. The provided cutting blade 30 also operates so as to come out of the cage C after entering the cage C.

  Thus, the multi-film D covering the ridge C is cut by both the entry operation to the ridge C and the removal operation from the ridge C in the planting blade 27a, and the cutting blade 30 protruding upward. In other words, the piercing hole D 'that is opened by the planting blade 27a in the multi-film D protrudes upward. Since the cutting blade 30 is expanded (expanded), the piercing hole D 'in the seedling planting portion of the multi-film D is formed by the planting blade 27a of the planting body 27. Can only be larger than if it breaks through.

  In this case, the length L of the piercing hole D ′ by the cutting blade 30 is shortened by changing the mounting position of the cutting teeth 30 from the front end to the base end along the longitudinal direction of the planted body 27. By changing in the direction of the tip, the length L of the piercing hole D ′ by the cutting blade 30 can be increased, and the length L of the piercing hole D ′ can be arbitrarily changed by changing the mounting position.

It is a side view which shows the whole seedling transplanter. It is a top view of FIG. FIG. 3 is an enlarged sectional view taken along line III-III in FIG. 1. FIG. 4 is a plan view of FIG. 3. It is an enlarged view which shows the planting body in a seedling planting mechanism. FIG. 6 is an enlarged plan view taken along line VI-VI in FIG. 5.

DESCRIPTION OF SYMBOLS 1 Seedling transplanter 2 Front wheel 3 Rear wheel 4 Traveling machine body 5 Engine 7 Mission case 13 Seedling transport mechanism 14 Seedling planting mechanism 27 Planted body 27a Planting blade 30 Cutting blade C 畝 D Multi film

Claims (1)

A seedling planting mechanism having a pair of planted bodies that are planted on a traveling machine by intermittent reciprocating motion toward the field, and a seedling transporter that supplies seedlings one by one to the planted body in the seedling planting mechanism A seedling transplanting machine comprising a mechanism,
At least one of the pair of planted bodies in the seedling planting mechanism is provided with a cutting blade for a multi-film covering the upper surface of the field so as to protrude upward at a portion of the planting blade at the tip of the planted body , and the cutting A seedling transplanter characterized in that the attachment position of the blade to the planted body can be changed in the reciprocating direction of the planted body .

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