JPH02117302A - Seedling transplanting machine - Google Patents

Abstract

PURPOSE:To facilitate exchange of seedlings and to improve operation efficiency by fixing vertical rock of members of preventing seedling floating at an action position of preventing seedling floating and setting a rock controlling mechanism to supply resisting force to rock of the members of preventing a seedling floating by force of springs at a nonaction position. CONSTITUTION:Left and right members 38 of preventing seedling floating have engaging shafts 38c which are engaged with holes 12b and 13b at an action position of preventing seedling floating, maintain the engaged state by force of springs 40 and the left and right members 38 of preventing seedling floating are fixed at the action position of preventing seedling floating. In the left and right members 38 of preventing seedling floating, the engaging shafts 38c come out from the holes 12b and 13b at positions except the position of preventing seedling floating and the members are made into a state of coming into contact with the inner face of left and right supporting arms 12 and 13 by force of the springs 40. After the seedlings are removed, the members 38 of preventing seedling floating are rotated by taking any part of the members of preventing seedling floating, automatically changed into an action state of preventing seedling floating and can be fixed to improve operation efficiency.

Description

[Detailed description of the invention]

(Industrial Application Field) The present invention relates to a seedling transplanter having a seedling floating prevention body.

[Prior art and its problems]

As shown in Japanese Utility Model Publication No. 61-21940, this kind of prior art includes a seedling holding device that can be switched between a seedling holding state and a non-working state and can be fixed therein. However, since the seedling holding device is fixed even in the non-operating state, the locking state must be released in order to switch from the non-working state to the seedling holding state, which is extremely inefficient. Met.

[Means to solve the problem]

This invention takes the first technical means to solve the problems of the prior art described above. That is, the present invention provides seedling floating prevention bodies 38, 38 for preventing seedlings from floating at positions corresponding to the seedling mounting table 7a of the seedling mounting table 7.
are provided, and the seedling floating prevention bodies 38, 38 are connected to springs 40, 40.
The seedling planter is provided so as to be movable laterally in a state where it is biased to one side laterally, and also to be swingable up and down between a seedling floating prevention activating position and a non-activating position to prevent the seedlings from floating. In the machine, at the seedling floating prevention function position, the seedling floating prevention body 38.
The vertical swing of 38 is fixed, and the spring 40 is in the non-acting position.
This seedling planting machine is characterized in that it is provided with a swing regulating mechanism A that provides resistance to the swinging of the seedling floating prevention bodies 38, 38 by the urging force of. [Effects of the Invention] With the above-described configuration, the present invention provides a seedling floating prevention body 38.
8 can be easily changed by simply moving laterally against the biasing force of the springs 40, 40. In the seedling lifting prevention action position, the swing regulating mechanism 38c.
12b, 38c ・Seedling floating prevention body 38/3 at 13b
8, since its posture is fixed, appropriately prevents the seedlings from floating. In addition, in the non-acting position, the springs 40, 4
Since the device provides a resistance force to the swinging with a biasing force of 0, simply by swinging the seedling lifting prevention bodies 38 against the resistance force, the seedling lifting prevention body 38 can be moved from the non-active position to the seedling lifting prevention active position. 1. Work efficiency is very high. [Embodiment] Reference numeral 1 denotes a traveling transmission case, and the front end of a cylindrical case body 2 extending rearward is fixed to the rear side surface thereof. A transmission case 4 is fixed to the rear part of the case body 2 to which a seedling planting tool 3 described later is attached and driven. Reference numeral 5 denotes an engine stand, which is fixed to the front part of the traveling transmission case 1 and has an engine 6 mounted on its upper surface. 3... is a seedling planting tool, and a crank 3 is attached to the transmission case 4.
A and a swinging arm 3b are attached to each other, and the seedling is moved up and down to take out one seedling at a time from a seedling stand 7, which will be described later, and to plant it in the field. Reference numeral 8 denotes a U-shaped operating handle in plan view, and the center portion thereof is fixed to the upper end portion of a cylindrical frame 9 fixed to the rear side surface of the transmission case 4. The seedling stand 7 has support parts 10 and 10 on one side of the cylindrical frame 9.
A moving rod 11 is supported so as to be movable from side to side, and its left and right sides reciprocate from side to side by a left and right reciprocating mechanism inside the transmission case 4.
It is connected to both left and right end portions by left and right support arms 12 and 13. 14 and 15 are left and right running wheels, running mission case 1
The proximal ends of the chain cases 16 and 17 are pivotally supported on the rear ends of left and right chain cases 16 and 17, which are freely rotatably attached to the left and right sides of the chain case 16, and are provided so as to be able to swing downwards -L while being driven and rotated. Reference numerals 18 and 19 denote left and right arms that are integrally provided to the left and right chain cases 16 and 17, respectively. Reference numeral 20 denotes a hydraulic cylinder device as a left and right wheel vertical movement device, the base of which is fixed to the upper surface of the traveling transmission case 1, and the center portion of an arm 22 is driven by a bullet 23 to the tip of a protruding piston 21. The state of being biased in the direction J is somewhat l
! I? It is attached so that it can move backward. Then, the left and right ends of the arm 22 and the upper ends of the left and right arms 18, 19, which are integrated with the left and right chain cases 16, 17, are connected to the connecting bodies 24, 2.
5, the left and right running wheels 14 and 15 are lowered by the piston 21 protruding in the A direction, and the left and right running wheels 14 and 15 are raised by the piston 21 retracting in the opposite A direction. Reference numeral 26 denotes a ground leveling float, which is installed between the inner sides of the running wheels 14 and 15, whose rear part is pivoted to the lower end of the vertical adjustment lever 27 attached to the cylindrical frame 9 with a pin 28, and whose front part is attached to a floating link 29. It is suspended from the engine stand 5 so that it can move freely up and down. This earth leveling float 26 and the oil passage switching valve 30 of the hydraulic cylinder device 20 are interlocked by a connecting rod 31 and a switching lever 32, and the earth leveling float 26
6 moves upward from a certain range to more than that, the oil passage switching valve 30 is switched accordingly, and the left and right traveling wheels 1
4 and 15 are configured to move downward, and when the ground leveling float 26 moves downward beyond a certain range, the oil passage switching valve 30 is switched accordingly to move left and right! Ring 14・
15 is configured to move upward. Numeral 33 is a seedling support frame, the side surface of which is approximately L-shaped, and is attached to the cylindrical frame 9 so that it can be moved freely in the opening/convex direction using a seedling removal amount adjustment lever 34. 35.3
5 is provided, and the seedling dividing claw 3c of the seedling planting tool 3...
... is configured to intervene from above into the seedling dividing opening 35 and take out the seedlings accommodated in the seedling platform 7 one by one. 36 is a bonnet that covers the top of one aircraft. Here, to describe the structure of the seedling stand 7 in more detail, the seedling stand 7 has two seedling mounting surfaces 7a, 7a formed of synthetic resin, left and right side walls 7b, 7b, and a center partition 1. !
7b', the upper wall 7c, the seedling feeding belts 37, 37,
Auxiliary seedling mounting bodies 7d and 7 provided through the upper wall 7c
d, the left and right support arms 12 and 13, and the central partition wall 7b'
It is composed of left and right seedling floating prevention bodies 38, which are horizontally suspended from a support metal fitting 39 fixed to the upper surface of the plant. Here, the left and right seedling floating prevention bodies 38 will be described in more detail. Each seedling floating prevention body 38 has a horizontal shaft 38a and three seedling floating prevention rods 38b whose bases are welded and secured to the horizontal shaft 38a... Similarly, the bases of each seedling floating prevention body 38 are welded and secured to the horizontal shaft 38a. and an engagement shaft 38c. Each of the right and left support arms 12 and 13 has a support hole 12a that supports the horizontal shaft 38a of the seedling floating prevention body 38.
13a and an engagement hole 12b that engages with the tip of the engagement shaft 38a.
- 13b is formed. The support fitting 39 is composed of a support plate 39a whose base end is fixed to the upper surface of the central partition wall 7b'' and a support cylinder 39b fixed to the upper part of the support plate 39a. Body 38.3
8 connects both left and right ends of the horizontal shaft 38a to the support hole 1.
2a, 13a and the support tube 39a, and is mounted in a state where it is pivotally supported so as to be able to swing up and down. In addition, 40 is a compression spring, and the left and right seedling floating prevention bodies 38 mounted above
- 38 is biased in two directions. The left and right seedling floating prevention bodies 38, 38 are in the seedling floating prevention action position If (the position indicated by the solid line in FIG. 4), and their respective engagement shafts 38c, 38c are engaged with the engaging holes 12b-13b. The engaged state is maintained by the biasing force of the springs 40.
The left and right seedling floating prevention bodies 38 are fixed at the seedling floating prevention action position. In addition, in the left and right seedling floating prevention bodies 38, 38, the engaging shafts 38c, 38c, respectively, come out of the engaging holes 12b, 13b, and the inner surfaces of the left and right support arms 12, 13 are removed at positions other than the seedling floating prevention action position. spring 40.4
They are brought into contact with a biasing force of 0. This engagement shaft 38c
38c is removed from the engagement holes 12b and 13b. When the seedling floating prevention bodies 38, 38 are in the state shown by the dashed line in the first Q, the bent tips 38b' of the three seedling floating prevention rods 38b of the seedling floating prevention bodies 38, 38 are bent. It is possible to stop receiving the front end surfaces of the seedlings placed on the seedling mounting surfaces 7a and 7a of the seedling mounting table 7 at the seedling mounting table 7, so that the seedlings are not supplied to the seedling planting tools 3. In the state shown by the two-dot chain line in the figure (non-operating state), the seedling floating prevention bodies 38 do not get in the way when removing the seedlings from the seedling stand 7, and the state shown by the two-dot chain line (non-operating state) When the seedling floating prevention bodies 38, 38 are in the operating state, the rotational force in the E direction due to their own weight and the end surfaces of the engaging shafts 38c, 38c are applied to the inner surfaces 12o, 13c of the left and right support arms 12, 13 by the springs 40.・40
It is maintained in a non-acting state by the sliding resistance force caused by the contact with the urging force of . However, these springs 40. Engagement shaft 38c, engagement hole 12b
・13b, and the inner surface 12 of the left and right support arms 12 and 13
c.13c constitutes a swing regulating mechanism A. In the upper configuration, after the rice transplanter is placed in the paddy field,
Move the seedling floating prevention bodies 38 to the seedling floating prevention action position tt (
When the seedlings are placed and housed on the seedling stand 7 (solid line in Fig. 4) and the engine 6 drives each rotating part, the running wheels 14 and 15
As a result of the rotation, the aircraft is propelled while the ground leveling float 26 is in contact with the muddy surface of the paddy field. The tips of the seedling dividing claws 3c of the seedling planting tools 3 arranged in parallel in the left and right direction move vertically in an elliptical planting locus, and the seedling platform is reciprocated from side to side. Starting from 7, the seedlings are divided one by one and planted one after another on the soil surface leveled by the leveling float 26. During such seedling planting work, if the surface of the tiller surface changes, such as becoming shallower or deeper, the running wheels 14 and 15
The hydraulic switching valve 3 is activated by the vertical movement of the soil leveling float 26.
0 is switched and the piston 21 of the hydraulic cylinder device 20 is moved up and down automatically by protruding or retracting, and the seedlings are always planted at the appropriate planting depth using the seedling planting tool 3. When fraction planting (single row planting) is performed at the edge of a ridge, either one of the seedling floating prevention bodies 38 is moved in opposite directions against the biasing force of the spring 40, and the engagement shaft is moved in opposite directions. 38c
from the engagement hole 12b (13b) to the state shown by the dashed-dotted line in FIG. The front end surface of the seedlings placed on the seedling mounting surface 7a of the seedling mounting table 7 is stopped from being fed to the seedling planting tool 3, and one row can be planted. Moreover, when taking out the bacteria placed and stored on the seedling mounting surface 7a, the seedling floating prevention body 38 is moved in opposite directions against the biasing force of the spring 40, and the engaging shaft 38c is moved into the engaging hole 12b (
13b) and the two-dot chain line 1r in Figure 4! If it is set to A (non-active state 1), the seedlings can be easily removed from the pedestal surface 7a. And this two-dot chain line shape is 51m.
In the non-operating state, the front floating prevention body 38 is rotated in the E direction due to its own weight and the end face of the engagement shaft 38c is brought into contact with the inner surface of the left and right support arms 12 (13) by the biasing force of the spring 40. After removing the seedlings, simply hold any part of the seedling floating preventer 38 and rotate it in the opposite direction to automatically float the seedlings. It can be switched to the anti-rotation state and fixed, resulting in very high work efficiency.

[Brief explanation of drawings]

The figures show a walk-behind rice transplanter that is an embodiment of the present invention. Figure 1 is a plan view, Figure 2 is a side view, and Figure 3 is a side view.
The figure is a cross-sectional side view of the main part, and FIG. 4 is a plan view of the main part. still,
In the figure, the symbols 7 are a seedling mounting stand, 7a is a seedling mounting surface, 38 is a seedling floating prevention body, 40 is a spring, and A is a swing regulating mechanism.

Claims (1)

[Claims] (1) Seedling floating prevention bodies 38, 38 for preventing seedlings from floating are provided at positions corresponding to the seedling mounting surface 7a of the seedling platform 7, and the seedling floating prevention bodies 38, 38 are attached to springs 40, 40. A seedling transplanter is provided so as to be movable laterally in a state in which the seedlings are biased to one side, and also to be swingable up and down between a seedling floating prevention activating position and a non-activating position for preventing seedlings from floating. In the seedling floating prevention action position, the vertical swing of the seedling floating prevention bodies 38, 38 is fixed, and in the non-working position, the swinging of the seedling floating prevention bodies 38, 38 is resisted by the biasing force of the spring 40. A seedling planting machine characterized by being provided with a rocking regulation mechanism A that applies force.