JP3183612B2 - Transplanter seedling frame vertical feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling frame vertical feeding device for a transplanter.

[0002]

2. Description of the Related Art As a transplanter for a field for transplanting seedlings such as vegetables, a seedling frame provided with a large number of pots vertically and horizontally projecting from the back is loaded into a seedling guiding means, and the seedlings are vertically fed by a seedling vertical feeding means. The frame is intermittently fed vertically from top to bottom one pitch at a time, and while the seedling frame is vertically fed one pitch, the pot seedlings in the horizontal row of pots in the seedling frame are placed on the horizontal feeding means by the seedling pushing means. There is a type in which each pot seedling is supplied one by one to the planting means by intermittent operation of the extruding and lateral feeding means, and the planting means plant the pot seedlings in the field.

[0003] The vertical feed means is provided with a feed pawl which can move up and down and is also movable in the horizontal direction. After the feed pawl is engaged with the pot portion from the horizontal direction, the feed pawl is moved down. Repeat the operation of vertically feeding the seedling frame, then moving the feed claw laterally to release the engagement with the pot portion, then moving the feed claw up, moving the feed claw horizontally again to engage the pot portion. Thus, there has been proposed a method of vertically feeding a seedling frame.

[0004]

In the prior art, in order to reliably engage and disengage the feed claw with the pot portion, the vertical movement mechanism and the horizontal movement mechanism are driven by different driving means. However, since the driving mechanism of the feed claw becomes complicated, the feed claw is
At the end point of the downward movement, the lateral movement moves in the direction of releasing the engagement with the pot part, and at the end point of the upward movement, the lateral movement moves in the direction of engaging the pot part. However, when doing so, the feed claw will move laterally while moving up or down near the end point of the vertical movement of the feed claw, the feed claw will not engage well with the pot part, and the feed claw will hit the pot part and the seedling frame will be moved. There is a risk of displacement in the vertical direction. Also,
When the feed claw moves upward, the feed claw separates from the pot.Therefore, there is a risk that the seedling frame will be misaligned at a certain beat. There is a problem of lack of certainty.

[0005] In view of the above problems, the present invention provides a seedling frame vertical feeding device for a transplanting machine, which can feed and stop the pot portion to a certain position without fail when vertically feeding the seedling frame. The purpose is to:

[0006]

The technical solution taken by the present invention to solve the above-mentioned problem is to provide a seedling frame 16 having a large number of pots 21 arranged vertically and horizontally projecting from the back.
A seedling frame vertical feeding device that feeds vertically from above to below, and is supported so as to be movable up and down.
And abutment 1 of the upper longitudinal feed the seedlings frame 16, at the time of the upward movement is configured to obtain escape down rather allowed all the upward movement, and brought into contact with the upper portion of the upward movement after the pot 21 a feed pawl 26 that is configured to return to a position, of the pot 21
Provided with a positioning portion 38 for the position-decided Me of the pot 21 by abutment to the bottom portion, have been resiliently biased, seedling frame 1
6 in order to allow the vertical feed when the vertical feed
1 is relatively pressed resiliently lies in providing a positioning member 35 which is configured to obtain escape up.

[0007]

By lowering the feed claw 26, the pot portion 21 is pushed down and the seedling frame 16 is vertically fed downward from above, and the upper and lower portions of the pot portion 21 are positioned at the end point of the downward movement of the feed claw 26. The pot part 21 is positioned in contact with the positioning part 38 of the member 35.

When the seedling frame 16 is fed vertically, the pot portion 21 which has been positioned so far presses the positioning member 39, whereby the positioning member 35 is elastically deformed and escapes, and the pot portion 21 is moved away. When the pot 21 on the upper side moves downward and comes to the positioning position instead, it returns to the original position.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 3 and 4, the transplanter 1 is a walking type having a steering handle 3 at a rear portion of a traveling body 2, and runs in a longitudinal direction over a ridge A covered with a multi-film. An engine 5 and a transmission case 6 are fixed to the front of the traveling body 2, and power is transmitted from the engine 5 to a transmission in the transmission case 6 via a wrapping transmission 7. Transmission power is transmitted from the transmission to a pair of left and right drive wheels 8, and power can be taken out via the PTO shaft 9 separately from the driving power. Power can be supplied to the driving unit of the arranged seedling transplantation device 10.

The seedling transplanting device 10 has a front portion pivotally supported by the body 2 and a rear portion elastically and suspendedly supported by the main frame 11 of the body 2 via elastic support means 12. It is attached and supported by the movable frame 13, and is roughly divided into an upper seedling feeding device 14 and a lower planting device 15.
The seedling transfer device 14 is a mechanism for transporting the seedlings one by one to the planting device 15, and includes a guide rail 17 for guiding the seedling frame 16, an extruding rod 18 for pushing out the seedlings from the seedling frame 16, and It has a feeding conveyor 19 for feeding the seedling frame 16 one by one to the planting device 15 and a seedling frame vertical feeding device 20 for feeding the seedling frame 16 vertically.

The seedling frame 16 is made of resin and has flexibility, and is provided with a large number of pots 21 arranged vertically and horizontally protruding from the rear surface. In the pots 21, soil seedlings (soil block seedlings) are grown. I have. A pair of guide rails 17 are provided so as to be opposed to each other in the front-rear direction, and are formed in a U-shape in a flat cross section with the opposite side being open. It is inserted from above so as to face the left side, and is inserted to the left from the lower outlet.

The pushing rods 18 are arranged behind the pot portions 21 of the seedling frame 16 (that is, on the left side) in a number corresponding to the horizontal row of pot portions 21. The seedlings in the section 21 are fed, the seedlings are extruded onto the conveyor 19, and then return to their original positions.
The feed conveyor 19 is provided with a number of trays 22 for receiving seedlings in an endless manner. The seedlings are intermittently fed rearward, and at the rear end position, the trays 22 are inclined to drop the seedlings to the planting device 15. Supply.

The planting device 15 includes a beak-shaped opener 23 and a movable frame 13 through a parallel link mechanism 24.
The seedlings are supplied to the opener 23 from the tray 22 of the feed conveyor 19 at the upper end of the movement locus of the opener 23, and the multi-punching device 25 moves the seedling at the lower end of the movement locus of the opener 23. An opener 23 rushes into the ridge A through a hole formed in the film by incineration, and the seedling is transplanted to the ridge A.

In this manner, the seedlings in the pot portion 21 in one row are planted on the ridge A. Then, when the seedlings in the pot portion 21 in one row are extruded, the seedling frame 16 is moved to the seedling frame vertical feeding device 20.
As a result, the pot 21 is vertically fed by one pitch in the vertical direction from the upper side to the lower side, and the above-described operation is repeated so that the seedlings are continuously planted. The seedling frame vertical feeding device 20 is provided in a pair,
They are arranged before and after the seedling frame 16. Hereinafter, the front seedling frame vertical feeding device 20 will be described.
As shown in the side sectional view of FIG. 1 and the front view of FIG. 2, the feed claw 2 located in front of the pot portion 21 of the seedling frame 16 is provided.
6 and a pair of upper and lower feed claws 26, which are disposed inclined downward toward the rear, and have a boss 27 on the upper end side. The boss 27 is provided with a feed arm disposed in the left-right direction. The lower end is in contact with the upper front portion of the pot portion 21.

A pair of right and left support pieces 29 are fixed to the rear surface on the distal end side of the feed arm 28, and the boss portion 27 of the feed claw 26 is rotated between the support pieces 29 via a support shaft 30. It is freely mounted and supported. A torsion coil spring 31 is interposed between the boss 27 and the support piece 29. One end of the spring 31 contacts the arm 28 and the other end
The feed pawl 26 is biased so as to rotate upward around the axis of the support shaft 30. The boss 27 of the feed claw 26 is provided with a stopper piece 32 which comes into contact with the feed arm 28 and prevents the rotation of the feed claw 26 due to the urging force of the spring 31.

A boss 33 at the base of the feed arm 28 is fixed to a drive shaft 34 having a longitudinal axis.
The forward / reverse rotation of the drive shaft 34 causes the feed arm 28 to swing up and down within a certain range. Feeding claw 26
A positioning member 35 is formed by a leaf spring, and a lower end is fixedly attached to a stay 36 fixed to the guide rail 17, and an upper portion is elastically deformable. . This positioning member 3
The upper part 5 is formed in a wave shape, the upper end side is a guide part 37 inclined forward and upward, and the middle part is a pot part 21.
And a positioning portion 38 which comes into contact with the front upper and lower portions.

The rear seedling frame vertical feeding device 20 is configured similarly to the front seedling frame vertical feeding device 20 except that it is formed symmetrically. In the above configuration, when inserting the seedling frame 16 between the guide rails 17, the seedling frame 16 is inserted until the lowermost pot portion 21 of the seedling frame 16 contacts the positioning portion 38 of the positioning member 35. At this time, the lowermost pot portion 21 comes into contact with the feed claw 26 from above, but the feed claw 26 rotates in the direction of arrow B to escape and allows the pot portion 21 to move downward.
On the other hand, when engaging with the positioning member 35, the lowermost pot portion 21 first contacts the guide portion 37 and
5 is elastically deformed and escapes, and the pot portion 21 is
7 beyond the curved portion located at the lower end of the positioning member 3
5 is returned, and the positioning portion 38 contacts the upper and lower portions of the pot member 21 so that the pot portion 21 is positioned.

The pushing rod 18 is provided with a positioning member 35.
Are located on the back of the horizontal row of pot portions 21 including the pot portion 21 positioned at. And the lowest pot part 2
When the seedlings in 1 are extruded, the feed arm 28 is rotated upward, and the feed claws 26 are moved upward to a position where the feed claws 26 are in contact with the pot portions 21 located above the respective feed claws 26. At the time of this upward movement, the feed claw 26 comes into contact with the lower portion of the pot portion 21, is relatively pressed against the lower portion, rotates in the direction of arrow B to escape, and the lower end of the feed claw 26 is When it reaches the upper position, it returns by the urging force of the spring 31 and returns to the pot portion 21.
Contact the top of the At this time, since the pot portion 21 is held by the positioning portion 38, the seedling frame 16 does not move upward.

Next, when the feed arm 28 is rotated downward, the pot portion 21 is pushed down by the feed claw 26 and the seedling frame 16 moves downward, while the pot portion 21 abutting on the positioning portion 38 is And the positioning member 35 is
By being elastically deformed by being pressed, the downward movement is allowed. By repeating the above operation, the seedling frame 16
Are intermittently fed vertically downward from one pitch at a time.

In the above-described embodiment, after the seedling frame 16 is inserted into the guide rail 17, the feed arm 28 is moved upward to a position where the feed claw 26 does not contact the pot portion 21 so that it can be freely moved up and down. It is preferable to separately provide a lock release lever device for causing the lock to be released. Alternatively, only the feed claw 26 may be rotated in the direction of arrow B.

[0021]

According to the present invention, the seedling frame 16 is vertically movably supported while being vertically moved, and is brought into contact with the upper portion of the pot portion 21 at the time of downward movement. , configured to obtain the permit upward movement to <br/> base rather escape down, and the upward movement after the pot 21
Positioning portion of the upper comprising a feed <br/> Ritsume 26 that is configured to return to a position to be brought into contact, the position-decided Me of the pot 21 by abutment at the bottom of the pot 21 provided with a 38, it has been resiliently biased, during longitudinal feeding seedlings frame 16, configured to obtain resiliently escape up is relatively pressed against the pot 21 to allow for the longitudinal feed Positioning member 35
Is provided, the feed claw 26 is used to feed the seedling frame 16 vertically.
Is simply moved up and down, so the structure is simple.
The pot portion 21 can be reliably positioned at a fixed position.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a main part.

FIG. 2 is a front view of a main part.

FIG. 3 is a side view of the transplanter.

FIG. 4 is a plan view of the transplanter.

[Explanation of symbols]

 16 Seedling frame 21 Pot part 26 Feeding claw 31 Torsion coil spring 35 Positioning member 38 Positioning part

──────────────────────────────────────────────────の Continuing on the front page (72) Moto Moto Nishio 64, Ishizukita-cho, Sakai City, Osaka Prefecture Inside Kubota Sakai Works Co., Ltd. (72) Kenichi Nosaka 64, Ishitsu-Kitacho, Sakai City, Osaka Prefecture Kubota Sakai Manufacturing Co., Ltd In-house (72) Inventor Hitoshi Fukumoto 64 Ishizu-Kitacho, Sakai-shi, Osaka Kubota Sakai Works Co., Ltd. (56) References JP-A-57-177607 (JP, A) JP-A-5-4820 (JP, U) 6-19409 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 11/00-11/02 303 A01C 11/02 350-367

Claims (1)

(57) [Claims] 1. A seedling frame vertical feeding device for vertically feeding a seedling frame (16) having a large number of pot portions (21) arranged vertically and horizontally projecting from a back surface thereof from above to below, comprising: while being rotatably supported, during the downward movement, the pot portion (21) top to abutment to the longitudinally feeding seedlings frame (16), during the upward movement is allowed all rather the upward movement escape configured to obtain lower and with upward movement after the pot portion configured feeding claw (26) so as to return to a position brought into contact with the upper portion (21), against the bottom of the pot part (21) Hit the pot (2
Positioning portion for the position-decided Me 1) provided with a (38), have been resiliently biased, relative to the time of longitudinal feed seedlings frame (16), the pot portion to permit the longitudinal feed (21) manner pressed resiliently seedling frame longitudinal feeding apparatus transplanter, characterized in that a configured positioning member (35) so as to obtain escape up.