JP3389656B2 - Rice transplanter seedling planting equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling planting device mounted on a rice transplanter. 2. Description of the Related Art Conventionally, in a seedling planting device of a rice transplanter, a seedling extruder having a planting claw and a U-shaped seedling extruding body at a tip end and moving linearly in parallel with the planting claw. And the seedling extruded body U
In some cases, a device for preventing seedling clogging is provided so as to close the inside of the U-shaped groove. [0003] In the prior art, since the seedling prevention device closes the U-shaped groove of the seedling extruded body, the soil on the floor of the seedling to be planted is highly adhesive. However, the seedling floor divided by the planting claws does not enter the U-shaped groove of the seedling extruded body, and the seedling is not released even when the extruded body is pushed out. It is prevented. But,
On the other hand, since the seedling prevention device closed the U-shaped groove of the seedling extruded body, the leaf stem portion of the seedling held by the planting claw could not enter the U-shaped groove and was greatly bent, There was a problem that the posture of the planted seedlings was disturbed. [0004] In order to solve the above object, according to an aspect of this invention, the planting claw 17, and the planting claw 17 has a U-shaped seedling extrudate 23 to the distal end In a seedling planting device of a rice transplanter provided with a seedling pushing tool 18 that moves linearly in parallel ,
Wrap around the bottom of the U-shaped groove bottom 23b of the seedling extruded body 23
Hook portion 25c on the front side and U-shaped side wall of seedling extruded body 23
And a rear key-like portion 25b engaged with the rear end of the portion 23a.
Ri, seedlings extrusion so as to close the the U-shaped groove of the seedlings extrudate 23
Seedlings clogging prevention member 25 with a removable flexible tool 18 is provided, the該苗clogging preventing device 25 was seedling planting apparatus rice transplanters forming the inclined surface 25e which inclines planting claw 17 side . An embodiment of the present invention will be described below in detail with reference to the drawings. First, a description will be given of the riding rice transplanter 1 on which the seedling transplanters 14 are mounted. The riding rice transplanter 1 has a configuration in which a seedling transplanter 4 is mounted on the rear side of a traveling vehicle body 2 via an elevating link device 3. The traveling vehicle body 2 includes a pair of left and right front wheels 5.5 and a pair of left and right rear wheels 6.6. The power of an engine E mounted on a vehicle body frame 7 is transmitted to a transmission 8 to transmit the front wheels. 5,5 and the rear wheel 6,6. A handle 9 is provided on the front side of the vehicle body, and the handle 7
5 is steered. A step 10a is provided on the vehicle body, and a seat 11 is provided on a cover 10b which covers the engine E.
Is attached. The lifting link device 3 is provided so as to be moved up and down by a hydraulic cylinder A. Seedling transplanter 4
A transplantation transmission case 12 having a transmission mechanism for receiving power from the transmission 8 and transmitting it to each operating portion of the seedling transplanter, and a planting transmission frame 1 fixed to right and left sides and extending rearward.
2a and 12a, a seedling table 13 provided so as to reciprocate left and right with a seedling placed in a downwardly inclined state, and a seedling plant to take one plant from the lower end of the seedling table 13 and plant it in a field. It has a configuration including devices 14. [0008] The seedling planting device 14 comprises a rotating case 15 and two planting tools 16 mounted on the rotating case 15.
The rotating case 15 is attached to the planting drive shaft 12b which projects to the rear left and right sides of the planting transmission frame 12a.
Are mounted so as to rotate together. The implants 16 are rotated by a gear transmission mechanism in the rotating case 15 in a direction opposite to the rotating case rotation direction, and are fixed to the implants 16 to form a two-claw configuration. With nail 17,17
Move so that their tips follow the same non-circular trajectory. Thereby, the seedling dividing port 13a provided at the lower end of the seedling mounting table 12
The planting claws 17 divide the seedlings one by one, hold and plant the seedlings in the field. The planting tools 16 are provided with seedling pushing tools 18 that slide in parallel with the planting claws 17, and the planting claws 17 penetrate into the seedling dividing port 13 a. When the seedlings are separated by one strain, the seedling pushing tools 18 are connected to the case 16a of the seedling attaching tools 16.
· It is retracted into 16a and operates so that when the planting claws 17 and 17 enter under the field scene, they protrude from the case of the seedling planting tools 16 and 16 and are held by the planting claws 17 and 17 It acts to release the planted seedlings into the field. The operation of the seedling pushing tools 18 is as follows. First, the planting tool rotating shaft 16 protruding from one side of the rotating case 15.
b and 16b are attached so that the case sides of the implants 16 can rotate integrally, while the case of the implants 16
Seedling pushing operation cam 19 provided inside the
19 is rotatably fitted to the implanter rotating shafts 16b in a state of being integrally connected to the rotating case 15. Then, the cam floor portions 20b of the seedling pushing arms 20, 20 slidably contact the cam surfaces of the seedling pushing operation cams 19, 19. Seedling extruding arms 20 are mounting pins 20a.
.Attached so as to be able to swing around 20a, the arm tip portions 20c of the arm 16a are the cases 16a of the implanting tools 16.16.
It engages with the rear end of the seedling push rods 21 that have penetrated into 16a. Furthermore, seedling pushing rods 21
At the rear end, springs 22 are provided for urging the rods 21 in a direction in which the rods protrude out of the case.
Also, the cases 16a, 16 of the seedling pushing rods 21,
a The extruded seedling 2 having a U-shaped cross section
3.23 are fixed. Therefore, the implants 16
The rotation of the cases 16a, 16a causes the cam floor portions 20b, 20b of the seedling pushing arms 20, 20 to rotate around the seedling pushing operation cams 19, 19 while slidingly contacting each other. The seedling pushing arms 20/20 swing around the mounting pins 20a / 20a, and the seedling pushing rods 21/21 are slid in conjunction therewith and the case 1 is moved.
It projects or retracts from inside 6a and 16a. Reference numerals 24a, 24b, and 24c denote floats on the left, center, and right sides, respectively. The front ends of the floats are suspended below the planting transmission frames 13, 13 so that they can swing up and down. Glide while leveling the surface. The central float 24b is linked at the front thereof to a spool of a hydraulic valve V for operating the hydraulic cylinder 11 for raising and lowering the transplanting machine 4, and also serves as a sensor float for controlling the elevation of the transplanting machine. . By the way, the planting tool 16 of the seedling planting device 14...
The - 16 ... seedlings push rod 21, 21 the tip of the seedling extrudate 23 and 23, seedlings clogging prevention member 25, 25 is detachably attached. The seedling clogging prevention device 25 is integrally formed of a synthetic resin into the shape shown in FIG.
Specifically, the rear side of the seedling clogging prevention device 25 forms forked portions 25a, 25a which are bifurcated in plan view, and the key ends 25b, 25b whose rear ends are keyed in plan view. And a hook portion 25c having a lower end in a hook shape in a side view.
Are formed, and the upper side is a protruding portion 25d protruding in a trapezoidal shape when viewed from the side.
And an inclined surface portion 25e is formed from the protruding portion 25d to the front end side, a left and right wide locking portion 25f is formed at the front end portion, and small projections 25g are formed on the left and right side surfaces.
25 g: 25 g and 25 g are formed. When the seedling prevention device 25 is set in the U-shaped groove of the seedling extruded body 23, as shown in FIG.
Pushing into the U-shaped side walls 23a and 23a of the seedling extruded body 23 while bending the rear forked parts 25a and 25a to the left and right inwards, and further wraps the hook 25c under the U-shaped groove bottom 23b. And push it in. Furthermore, the tip of the seedling extruded body 23 is engaged with the locking portion 25f of the seedling clogging prevention device 25.
When the seedling prevention device 25 is pushed in until it hits, the key-like portions 25b at the rear end of the seedling prevention device 25 come out of the U-shaped groove of the seedling extruded body 23 and are bent right and left inward.・ 25a opens left and right. In this state, the seedling clogging prevention device 25 is fixed to the seedling extruded body 23 by the engagement of the key portions 25b, 25b and the engagement of the hook portions 25c without using another fixing device, and the setting is completed. When removing, the key-like portions 25b of the seedling clogging prevention device 25 are moved to the left and right inner sides to disengage and push forward.
The seedling extruded body 23 can be easily pulled out. still,
Small projections 25 formed on the left and right sides of seedling clogging prevention device 25
g · 25 g: 25 g · 25 g functions as a spacer for preventing rattling even if the inner width of the U-shaped groove of the seedling extruded body 23 is somewhat wider than the left and right width of the seedling clogging prevention device 25. . Now, when the seedling prevention devices 25 are mounted on the seedling extruded bodies 23, even if the soil on the floor of the seedling to be planted is in a highly sticky state, the seedling prevention devices 25 are prevented. Since the inside of the U-shaped groove of the seedling extruded body 23, 23 is closed at 25, 25, the floor portion of the seedling divided by the planting claws 17, 17 has the U-shaped groove of the seedling extruded body 23, 23. It does not get inside and adhere. In addition, since the projecting portions 25d on the upper part of the seedling clogging preventers 25, 25 enter between the two planting claws 17, 17 with a small gap and project upward, the projecting portions 25d, 25d. 25d reciprocates between the two planting claws 17, 17, so that the leaf stem portion of the seedling is not clogged between the two planting claws 17.
Therefore, the seedling clogging prevention devices 25
By being mounted on the seedling 23, it is possible to prevent occurrence of a situation in which seedlings are not released even when the seedling pushing bodies 23 are pushed out. Further, since the inclined surface portions 25e are formed on the front end side of the seedling prevention devices 25, the leaf stem portions of the seedlings held by the planting claws 17 do not bend sharply. Disturbance of seedling posture is unlikely to occur. The case 16a.1 of the planting tool 16.16.
Seedling scrapers 26, 26 having tips 26a, 26a bent in an arc shape, are detachably attached to 6a.
Coiled spring portions 26b are formed in the middle portion of the seedling scraping tools 26. While the seedling planting device 14 is operating, the tips 26a and 26
a can penetrate between the two planting claws 17 so that the seedlings can be scraped out. This seedling scraper 26
By mounting the device, the effect of preventing seedling clogging by the seedling clogging prevention devices 25 is further improved. As described above, in the seedling planting apparatus of this rice transplanter, the seedling extruded body 23 is provided with the seedling clogging prevention device 25.
When the plant is planted in a normal state where it is not worn, it is divided by the planting claws 17.
The leaf stems of the seedlings fall into the U-shaped groove of the seedling extruded body 23
The leaf stem of the seedling does not bend, and the posture of the planted seedling is disturbed.
Does not occur. On the other hand, such as when high sticky soil floor portion of the seedling is planting, instrumentation seedlings clogging prevention member 25 seedlings extrusion body 23
When the seedlings are planted in a state where they are worn, since the inside of the U-shaped groove of the seedling extruded body 23 is closed by the seedling clogging prevention device 25 , the planting claws 17
The floor portion of the seedling divided by the above does not enter the U-shaped groove of the seedling extruded body 23 and adhere to it. Therefore, the seedling extruded body 2
It is possible to prevent the occurrence of a situation in which seedlings are not released even if 3 is pushed out. Furthermore, the seedling clogging prevention device 25
Since the inclined surface portion 25e is formed on the front end portion of the seedling, the leaf stem portion of the seedling held by the planting claw 17 does not bend significantly, and the posture of the planted seedling is hardly disturbed. The seedling clogging prevention device 25 is provided with
The seedling extruded body is formed by the hook portion 25c and the key portion 25b on the rear side.
23 can be attached without rattling and seedling extrusion
It can be installed simply by pushing it into the U-shaped groove of the body 23
It can be easily attached and detached according to the planting condition.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing a riding rice transplanter. FIG. 2 is a partial cross-sectional side view showing the seedling planting apparatus. FIG. 3 is a plan view of the implant. FIG. 4 is a perspective view showing attachment of a seedling clogging prevention device. FIG. 5 shows a seedling clogging prevention device, (a) is a plan view,
(B) is a right side view. [Description of Signs ] 1: Riding rice transplanter 2: traveling vehicle body 3: elevating link device 4: seedling transplanter 13: seedling planting device 16: planting tool 17: planting claw 18: seedling pushing tool 23: seedling pushing body 23a: U-shaped side wall portion 23b: U-shaped groove bottom portion 25: Seedling clogging prevention device 25b: key-shaped portion 25c: hook portion 25e: inclined surface portion

Continuing from the front page (72) Inventor Hideyuki Kusamoto 1st part of Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. (72) Inventor Hirofumi Fumita 1 Yakura, Tobe-cho, Iyo-gun, Ehime Pref. Iseki Agricultural Machinery Co., Ltd. Engineering Department (56) References JP-A-54-141217 (JP, A) Jpn. Showa 54-155819 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A01C 11/02

Claims (1)

(57) and the Patent Claims 1. A planting claw 17, the seedling pusher 18 to move linearly in parallel with the planting claw 17 has a U-shaped seedling extrudate 23 to the distal end In the seedling planting equipment of a rice transplanter equipped with
Before going under the U-shaped groove bottom 23b of the extending body 23
Side hook part 25c and U-shaped side wall part 2 of seedling extruded body 23
The seedling pushing tool 18 is closed by the rear key-like portion 25b engaging with the rear end of the seedling pushing body 23 so as to close the U-shaped groove of the seedling pushing body 23.
Provided with a removable seedling clogging prevention device 25 that is removable
A seedling planting device for a rice transplanter, wherein the seedling clogging prevention device 25 has an inclined surface 25e inclined toward the planting nail 17 side.