JP2813637B2 - Rotary seedling plant - 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 plant in which a transmission case is attached to a tip of a drive shaft projecting laterally outward from a planting transmission case, and seedling pushing tools are provided at both ends of the rotary transmission case. The present invention relates to a rotary seedling planting device equipped with nails.

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 1-265810, a rotary seedling planting apparatus has a transmission case attached to the tip of a drive shaft projecting laterally outward from a planting transmission case. At both ends of the rotary transmission case, a planting claw support case provided with a seedling pushing-out tool that can move back and forth along the seedling-planting claw, respectively. By being mounted on the case in a state of being rotated by one revolution in the opposite direction at a non-uniform speed via a group of different diameter gears in the interior, the seedlings are scraped, and the seedlings are configured to be planted, and Inside the planting claw support case, a cam for a seedling pushing tool that revolves around the rotation axis of the transmission case with the rotation of the transmission case is provided, and is capable of moving back and forth along the planting claw. The seedling pusher is configured to protrude.

[0003]

If the seedlings are set long for deep planting due to the nature of the mud, etc., there is a possibility that a pair of upper and lower seedlings will interfere with each other as the transmission case rotates. There is, therefore, deep planting with long seedling-claws has been difficult to set. In addition, since the change in the amount of seedlings is a change in the phase of the seedling supporting case relative to the rotary transmission case, the angle of entry of the seedlings with respect to the seedling mounting table and the angle of approach of the seedling with respect to the mud surface for seedlings. There was a problem that it was difficult to scrape and plant good seedlings. A first object of the present invention is to enable deep planting by devising a mounting structure of a planting claw support case to a rotary transmission case. A second object of the present invention is to enable deep planting without changing the angle of entry of the seedling-claw with respect to the seedling mounting table and the angle of entry of the seedling-claw with respect to the mud surface.

[0004]

A first technical means of the present invention for achieving the first object is to attach a transmission case to a tip of a drive shaft protruding laterally outward from a planted transmission case, and to transmit the transmission case. At each of the two ends of the case, a support arm that is rotated by one revolution in the opposite direction at a constant speed is attached to the rotation transmission case via the interior of a different diameter gear group with respect to the rotation transmission case driven at the same speed. At the distal ends of the support arms, planting claw support cases provided with seedling pushing-out tools that can move back and forth along the seedling-planting claws are fixedly provided, and laterally outer portions of these planting claw support cases are respectively provided. A cam drive case equipped with a gear group for revolving the seedling pushing tool cam in the planting claw support case around the rotation axis of the transmission case with the rotation of the transmission case is further mounted, On the lateral outer side of this cam drive case, Serial and interconnecting the first gear axes of gears in the cam drive case, it is a gear group in the cam drive case in that mounted the connecting arm to drive rotates with the rotation of the transmission case. A second technical means of the present invention for achieving the second object is to attach a transmission case to a tip of a drive shaft protruding laterally outward from a planting transmission case, and to attach the constant velocity to both ends of the transmission case. For the rotating transmission case that is driven to rotate, the rotation transmission case is equipped with support arms that rotate by one revolution in the opposite direction at a non-uniform speed via a group of internal gears of different diameters. A planting claw support case provided with a seedling pushing-out tool that can move back and forth along the planting claw is fixedly provided, and at the lateral outer side of the planting claw support case, A connecting arm for interconnecting the seedling pushing tool cams and revolving the seedling pushing tool cam in the planting claw support case around the rotation axis of the transmission case with the rotation of the transmission case. It is in the point that was attached.

[0005]

The operation of the first technical means for achieving the first object is as follows. As shown in FIG. 1, as the transmission case C makes one rotation, the support arm S at the tip of the transmission case C makes one rotation in the opposite direction at a non-uniform speed via the group of different diameter gears Ga in the transmission case C. The seedlings are rotated to scrape the seedlings and plant the seedlings. Then, as the transmission case C rotates, the group of different diameter gears Gb in the cam drive case K disposed opposite to the support arm S is rotated by the rotation of the support arm S in the reverse direction. The seedling extruder cam 6 that is rotated around at a non-uniform speed is rotated in the forward direction at a non-uniform speed with the reverse rotation of the support arm S,
That is, the projecting operation of the seedling pushing tool 3 is performed by revolving around the rotation axis of the transmission case C. The operation of the second technical means for achieving the second object is as follows. As shown in FIG.
Along with the rotation, the supporting arm S at the tip of the transmission case C is rotated by one revolution in the opposite direction at a non-uniform speed via the group of different diameter gears Gb in the transmission case C to scrape the seedlings and remove the seedlings. Planting will be performed. The seedling pusher cam 6 of the planting claw support in case K, the cam 6 and 6 to each other within the casing K is because they are connected to each other via a connecting arm A _1, for the seedling pusher The cam 6 revolves around the rotation axis P of the transmission case C irrespective of the non-uniform reverse rotation of the support arm S, and the projecting operation of the seedling pushing tool 3 is performed. When the planting claw support case K attached to the tip of the supporting arm S is attached to the supporting arm S via a slidable hole adjusting mechanism T or the like, the phase of the planting claw 2 is changed. It is possible to change the amount of seedlings collected without performing.

[0006]

According to the first aspect of the present invention, the distance from the center of rotation of the rotary transmission case to the tip of the seedling claw can be extended by the support arm attached to the tip of the rotary transmission case. Deep planting is possible without mutual interference of nails. Further, according to the technical means of the second invention, similarly to the first invention, the plant can be deeply planted by the support arm attached to the tip of the rotary transmission case, while being attached to the tip of the support arm. By attaching the planting claw support case to the supporting arm so that the slide position can be adjusted, the amount of seedlings can be changed without changing the phase of the planting claw.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to a seedling planting apparatus for a riding type rice transplanter. As shown in FIGS. 1 and 3,
At the rear end of the planting transmission case M, a transmission case C that rotates around the horizontal axis P is provided. At both ends of the rotation transmission case C, the transmission case C extends along the seedling claw 2 via the support arm S. A planting nail supporting case K provided with a retractable seedling pushing tool 3 is mounted, and two sets of seedling planting claws 2 are taken out of the lower end of the seedling rest N with the rotation of the transmission case C. It is configured so that seedlings are alternately cut from the mouth Na and planted in rice fields. At the lower part of the planting mission case M, a float F for leveling and maintaining posture is provided, and these seedling planting devices are moved up and down to the rear part of the riding type traveling machine (not shown) via the parallel quadruple link R. They are freely connected.

A transmission case C is provided at the end of the transmission case C.
A support arm S, which rotates by one revolution in the opposite direction at a constant speed through a different diameter gear group Ga inside, is attached to the support arm S. At the tip of the support arm S, the planting claw support case K is bolted. Fixed. A group of different-diameter gears Gb that is rotatably opposed to the support arm S and coaxial with the final gear shaft 8 in the transmission case C is provided on the lateral outer side of the planting claw support case K. cam drive case D and is mounted, next to the outer portion of the cam drive case D, is wearing the connecting arm a which connects the shaft 9 between the first gear G ₄ of the cam drive casing D to each other .

Next, the structure in the rotary transmission case C will be described.
More specifically, as shown in FIG.
The drive shaft 1 protrudes along the horizontal axis P from left to right from M.
The rotation transmission case C is fixed to both ends of the drive shaft 1.
And a passive spur provided at the center of the drive shaft 1.
Power is transmitted to the rocket 1a via the chain h.
You. The drive shaft 1 has a planting transmission case M
The cylindrical shaft 7 fixed to the shaft is externally fitted to the rotary transmission case.
C, and the sun gear G₁Is fixed
Have been. And, from both ends of the rotation transmission case C
The final gear G of the different diameter gear group Ga _ThreeShaft 8 protrudes
At the same time, the end of the final gear shaft 8 is attached
The support arm S is fixedly connected to the base K.
At the tip of the support arm S, the planting claw support case K is
It is fastened and fixed. As shown in FIG.
Seedling claw 2 is bolted and fixed on the upper surface of support case K
The seedlings are planted inside Case K.
Seedling pushing tool 3 that can move back and forth along with nail 2 and seedling pushing
Spring 3 acting on the rear end of the support rod 3a of the tool 3,
Swing arm 5, which engages with the rear end of support rod 3a,
Further, the swing arm 5 is connected to the cam follower 5a provided continuously.
The cam 6 for the seedling pushing tool is provided inside,
The cam 6 for the dispenser is a gear having a different diameter in the cam drive case D.
Last gear G of group Gb₆Is fixed to the shaft 10.

Therefore, the transmission case C is driven by the drive shaft 1.
Fixed sun gear G when driven to rotate ₁Intermediate gear G around
_TwoRolls, and the support arm S fixed to the final gear shaft 8 is not
It is rotated one revolution in the opposite direction at a constant speed to scrape the seedlings, and
Seedlings will be planted. On the other hand, the support arm S
Is rotated by one revolution in the opposite direction at an uneven speed, the support arm S
The cam 6 for the seedling pushing tool in the planting nail support case K at the tip is
Around the rotation axis P of the transmission case C in the opposite direction at an irregular speed.
Although it rotates by one rotation, the cam drive case K
First gear G of the different diameter gear group Gb_FourShafts 9 and 9 are connected
The first gear is connected to each other through the arm A.
G_FourIs the circumference of the rotation axis P of the transmission case C without rotating.
And the first gear G_FourMiddle of occlusion
Gear G_FiveHowever, the seedlings are
The cam 6 for the extruder is rotated at a non-constant speed in the forward direction.
The seedling pushing tool cam 6 is connected to the rotation axis P of the transmission case C.
It will revolve around, and the projecting operation of the seedling pushing tool 3
Will be performed.

The gear train of the group of different diameter gears Ga in the transmission case C is configured to reverse the planting claw support case K mounted on the support arm S at a constant speed with respect to one rotation (revolution) of the rotary transmission case C. By rotating one rotation in the direction, the tip locus I of the seedling-attached claw 2 is set up and down in a vertically elongated loop shape. It is necessary to rotate the support shaft, that is, the final gear shaft 8 at a non-uniform speed. For this reason, the gear group Ga is configured as a non-circular gear. The gear train of the different diameter gear group Gb in the cam drive case K is used for a seedling extruding tool which is rotated at an irregular speed around the rotation axis P of the transmission case C with the rotation of the support arm S in the reverse direction. The cam 6 is rotated at a non-uniform speed in the forward direction along with the reverse rotation of the support arm S, and the seedling pusher cam 6 is revolved around the rotation axis P of the transmission case C. Therefore, the gear group Gb
Is configured as a non-circular gear.

Next, an embodiment of the second invention will be described. As shown in FIG. 4, a support arm S that rotates by one rotation in the opposite direction at a non-uniform speed is attached to a front end of the transmission case C via a group of different-diameter gears Ga inside the transmission case C. At the tip of the support arm S, a planting claw support case K provided with a seedling pushing-out tool 3 that can move back and forth along the planting claw 2 is fixed by bolting. Then, the next outer portion of the planting claw support case K, connecting arm A ₁ is mounted interconnecting seedling pusher cam 6 with each other in the planting claw support case K. Accordingly, as the transmission case C is rotated once, the support arm S at the tip of the transmission case C is rotated by one rotation in the opposite direction at a non-uniform speed via the different diameter gear group Ga in the transmission case C. Scraping and planting of seedlings. The cam 6 for the seedling pusher in the planting claw support case K is connected to the connecting arms A _{1 by} the cams 6 in the case K.
The seedling pushing tool cam 6 revolves around the rotation axis P of the transmission case C regardless of the non-uniform reverse rotation of the support arm S. Then, the projecting operation of the seedling pushing tool 3 is performed.
Each of the planting claw support cases K is slidably attached to the support arm S via a long hole adjusting mechanism T so that the amount of seedlings can be changed. Then, the connecting arm A ₁ and the cam shaft 11, for seedlings up amount changing,
The relative distance between the cam shaft 11 and 11 are separated, the separated so as to permit the relative distances, holes for formation of the cam shaft mounted on the connecting arm A ₁ is formed on the elongated hole 12.
Further, the shaft portion for connecting the arm A ₁ of cam shaft 11 is formed in a square shaft portion to prevent relative rotation with respect to the connecting arm A _1.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a cross-sectional plan view of a planting claw driving mechanism.

FIG. 2 is a vertical side view of a planting nail supporting case.

FIG. 3 is a side view of the seedling planting apparatus.

FIG. 4 is a cross-sectional plan view of the planting claw drive mechanism of the second invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Driving shaft 2 Seedling claw 3 Seedling pushing tool 6 Cam for seedling pushing tool 9 First gear shaft A Connecting arm A ₁ Connecting arm C Transmission case D Cam drive case Ga Different diameter gear group Gb Gear group K Planting claw support Case M Planting transmission case P Rotating shaft core S Support arm

Claims (2)

(57) [Claims] 1. A transmission case (C) is attached to the tip of a drive shaft (1) projecting laterally and outwardly from a planting transmission case (M). The supporting arm (S) which is rotated by one rotation in the opposite direction at a non-constant speed with respect to the driven rotary transmission case (C) via a group of different diameter gears (Ga) inside the rotary transmission case (C). Is attached, and a planting claw support case (K) having a seedling pushing tool (3) that can move back and forth along the planting claw (2) is fixed to each end of the support arm (S). At the same time, the cam (6) for the seedling pushing tool in the planting claw support case (K) with the rotation of the transmission case (C) is provided on each of the lateral outer portions of the planting claw supporting case (K). Cam drive with a group of different diameter gears (Gb) for revolving around the rotation axis (P) of the transmission case (C) The case (D) is attached, and the gears (Gb), (G) in the cam drive cases (D), (D) are further provided on the lateral outer side of the cam drive cases (D), (D).
b) The first gear shafts (9) and (9) of the group are connected to each other, and the gear group (Gb) in the cam drive case (D) is rotated with the rotation of the transmission case (C). A rotary seedling-planting device equipped with a connecting arm (A) to be driven. 2. A transmission case (C) is attached to the tip of a drive shaft (1) projecting laterally and outwardly from the planting transmission case (M), and the both ends of the transmission case (C) are provided with the constant-speed rotation. The supporting arm (S) which is rotated by one rotation in the opposite direction at a non-constant speed with respect to the driven rotary transmission case (C) via a group of different diameter gears (Ga) inside the rotary transmission case (C). Is attached, and a planting claw support case (K) having a seedling pushing tool (3) that can move back and forth along the planting claw (2) is fixed to each end of the support arm (S). At the same time, the cams (6) and (6) for the seedling pushing tool in the planting claw support cases (K) and (K) are provided on the lateral outer side of the planting claw support cases (K) and (K). And a cam (6) for a seedling pushing tool in the planting nail supporting case (K), (K),
A rotary seedling with a connecting arm (A ₁ ) for revolving (6) around the rotation axis (P) of the transmission case (C) as the transmission case (C) rotates. apparatus.