JPH0139139Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is driven by reciprocating sliding from side to side in conjunction with the seedling planting movement of the planting claw, and reciprocating rotation within a certain angular range near the ends of the left and right sliding strokes. A seedling stand transverse feed shaft penetrating the transmission case in a driven state is arranged on the side of the seedling resting surface of the seedling stand, and a pair of seedlings are respectively extended from the left and right ends of the seedling stand. It is integrally movably and rotatably connected to each of the seedling platform sliding operation arms, and the drive shaft of the vertical feeder for the seedlings placed on the seedling platform is rotatably mounted horizontally on the back side of the seedling platform. The present invention also relates to a seedling feeding device for a rice transplanter that is interlocked and connected to the transverse feed shaft of the seedling tray through a mechanical interlocking mechanism that penetrates the seedling partition of the seedling tray.

By arranging the interlocking mechanism within the width of the seedling stand, the rice transplanter prevents the width of the machine body from becoming wider due to the interlocking mechanism, as would be the case when the interlocking mechanism is placed outside of the seedling stand. In addition, by configuring the interlocking mechanism to pass through the seedling stand, consideration has been given to making the interlocking mechanism simple in structure with a short interlocking distance. Since it is not possible to penetrate the seedling tray, the connection of the interlocking mechanism to the seedling tray transverse feed shaft should be moved at least one seedling away from the connection point of the seedling tray horizontal feed shaft to the seedling tray sliding operation arm. This must be done at a location relatively far away from the seedling tray sliding operation arm and the transmission case, and therefore, due to the seedling feeding reaction force acting through the interlocking mechanism when vertically feeding the seedlings. The horizontal feed shaft of the seedling tray was bent, which sometimes caused seedling feeding failures such as insufficient seedling feeding amount.

The purpose of the present invention is to make it possible to prevent the deflection and deformation of the transverse feed shaft of the seedling tray by simple modification.

In the seedling feeding device of the rice transplanter mentioned above, the present invention has one end connected to a reinforcing rod that connects both of the operating arms, and the other end connected to the lateral feed shaft of the seedling tray so as to be relatively rotatable. The present invention is characterized in that the member is located near a location where the interlocking mechanism of the transverse feed shaft of the seedling stand is connected, and its functions and effects are as follows.

That is, by providing the connecting member,
The reinforcing rod is used to prevent the horizontal feeding shaft of the seedling tray from bending due to the seedling feeding reaction force through the connecting member, or
Support to minimize deflection. Therefore, it is possible to effectively prevent the lateral feed shaft of the seedling tray from being bent due to the feeding of the seedlings, and the feeding of the seedlings can be performed reliably.
Moreover, compared to changing the transverse feed shaft of the seedling tray to a stronger one, the simple modification of just installing a connecting member was economically advantageous.

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

As shown in FIGS. 1 and 2, six planting arms 4 are arranged in parallel in the lateral direction of the vehicle at the rear of the traveling vehicle, which has a pair of left and right wheels 1, 1, an engine 2, an operating handle 3, etc. These planting arms 4 are provided with a seedling feeding device having a seedling stand 5 for feeding seedlings, and one center grounding float 6 and two side grounding floats arranged in parallel in the lateral direction of the machine are installed at the bottom of the traveling machine. Floats 7, 7 are attached to constitute a walking rice transplanter.

As shown in FIG. 3, a first rotary shaft 9 equipped with two earth-harvesting arms 8a, 8a for planting seedlings by the planting arm 4 located at the outermost lateral side of the machine body is connected to a transmission case 11 through an arm 10. The four planting arms 4 are rotatably attached to and located inside the fuselage.
A second rotary shaft 12 equipped with a total of eight soil gathering arms 8b, two of which act on each seedling planted by...
is rotatably horizontally mounted on the transmission case 11 via a pair of arms 13, 13, and the second rotating shaft 12 is connected to one planting arm 4 via a link mechanism 14 in conjunction with its seedling planting movement. The left and right first rotation shafts 9, 9 are connected to the second rotation shaft 12 through an interlocking shaft 15 so as to be reciprocated within a certain angular range. The earth mooring arms 8a and 8b are connected so as to rotate, and are reciprocated up and down in conjunction with the seedling planting movement of the planting arm 4, and are located behind the planted seedlings as they descend. The structure is such that the mud is pushed toward the planted seedlings and fills the mud scraping holes formed behind the planted seedlings by the planting claws 4a. In other words, lodging of planted seedlings caused by the mud scraping holes is prevented.

The portion 12a of the second rotating shaft 12 located behind the wheel 1 is always located above by the upper arm mounting portion 12b regardless of the rotation of the rotating shaft 12, and The second rotating shaft 12 is bent into a shape in which the length of the protrusion to the lateral outside is larger than the length of the protrusion from the wheel 1 to the lateral inward direction, and while lowering the pivot axis of the shoring arm 8a, A second rotating shaft 12 is attached to each of the mounded soil, the soil that falls from the wheel 1 to both the inside and outside sides of the wheel, and the soil that falls more on the outside of the wheel than on the inside of the wheel.
It is constructed so that it is difficult to come into contact with it.

The seedling feeding device is constructed as shown in FIGS. 4 and 5.

That is, the seedling tray lateral feed shaft 16 disposed on the seedling loading surface side of the seedling tray 5 is provided through the transmission case 11 so as to be slidable left and right, and the insertion portion of the lateral feed shaft 16 into the transmission case 11 is provided with a A lateral feed shaft sliding operation tool 19, which is integrally and slidably attached via a pair of lateral feed shaft rotation operating arms 17a, 17b and a guide member 18, is attached to a transmission case 11 and a gear to a planting arm transmission shaft 20. It is engaged with a spirally grooved rotating shaft 21 which is installed inside in a transmission state so as to reciprocate from side to side as the rotating shaft rotates. The left and right end portions of the horizontal feed shaft 16 can be integrally moved by a pair of seedling stand sliding operation arms 23a and 23b that extend separately from the left and right end portions of the frame shaft 22 of the seedling stand 5. The horizontal feed shaft 16 is driven to reciprocate from side to side in conjunction with the seedling planting movement of the planting claw 4a, and the planting claw 4a sequentially moves from one end of the placed seedling to the other end. The seedling stand 5 is slid back and forth from side to side so as to cut and take out the seedlings one by one.

The lateral feed shaft 16 is configured to rotate relative to the transmission case 11 and the pair of arms 23a, 23b, respectively, and the pair of operating arms 17a, 17b are rotated near the left and right sliding stroke ends, respectively. One side 17a is the rotation shaft 21
A pair of operation parts 21 are integrally rotatably attached to the
Pressing operation is performed by one 21a of a and 21b,
Alternatively, the other operating arm 17b is configured to be pressed and operated by the other operating section 21b to rotate by a certain angle. Then, a pair of rotary bodies 24 are placed on the back side of the seedling rack 5 for vertically feeding the six rows of seedlings placed on the seedling rack 5 by locking them to the lower end of the seedling rack 5. The drive shaft 25 is mounted so as to be integrally driven by a single drive shaft 25 that is rotatably suspended horizontally on the operating arms 23a and 23b, and the drive shaft 25 is attached in a direction in which the seedlings are fed to the lower end side of the seedling stand. A one-way clutch 2 that allows power transmission only in the direction in which the rotating body 24 rotates.
6. Interlockingly connected to the lateral feed shaft 16 of the seedling tray 5 through a mechanical interlocking mechanism 29 consisting of a push-pull interlocking rod 27 and a swinging interlocking arm 28 that penetrate the partition portion 5a for the seedlings placed on the seedling tray 5. There is. Then, the operating arms 17a, 17b are connected to the operating section 21a.
Or, the spring 30 is restored to the waiting phase in which the input arm 26a of the one-way clutch 26 and the pair of operation arms 23a, 2 are brought into contact with each other.
3b is attached across the connected pipe reinforcing rod 31, and each time the seedling tray 5 reaches near the left and right sliding stroke ends, the seedling tray lateral feed shaft 16 rotates with the rotating shaft 21. The drive shaft 25 is rotated by a certain angle via the interlocking mechanism 29 so that each rotating body 24 forcibly vertically feeds the seedlings placed there by a certain amount. It is designed to be driven.

One end side of a resin connecting member 32 arranged near the point where the interlocking mechanism 29 of the seedling stand transverse feed shaft 16 is connected is connected to the reinforcing rod 31, and the other end side is connected to the seedling stand transverse feed shaft 16. It is connected to the horizontal feed shaft 16 so as to be relatively rotatable, so that the seedling tray horizontal feed shaft 16 does not bend due to the reaction force of vertical seedling feed acting through the interlocking mechanism 29, or even if it bends, the amount of deformation is reduced. The reinforcing rod 31 is inserted through the resin member 32 so that the
It is supported by

The rotating body 24 can be changed to a belt or a swinging pawl, and these are collectively referred to as the vertical feeder 24.

The material of the connecting member 32 can be changed to metal or the like.

[Brief explanation of the drawing]

The drawings show an embodiment of the seedling feeding device for a rice transplanter according to the present invention, and FIG. 1 is a side view of the walking rice transplanter, and FIG.
Figure 3 is a plan view of the walk-behind rice transplanter, Figure 3 is a rear view of the mulching arm arrangement, Figure 4 is a partially cutaway plan view of the seedling supply device, and Figure 5 is a side view of the interlocking mechanism. 4a... Planting nail, 5... Seedling stand, 5a... Seedling stand partition, 11... Transmission case, 16...
Seedling tray horizontal feed shaft, 23a, 23b... Seedling tray sliding operation arm, 24... Vertical feeder, 25... Drive shaft, 29... Mechanical interlocking mechanism, 31... Reinforcement rod, 32... Connecting member.

Claims (1)

[Scope of utility model registration request] It penetrates into the transmission case 11 while being reciprocatingly slidably driven from side to side in conjunction with the seedling planting movement of the planting claw 4a, and reciprocatingly driven within a certain angular range near the left and right sliding stroke ends, respectively. The seedling resting table horizontal feed shaft 16 is arranged on the side of the seedling resting surface of the seedling resting table 5, and a pair of seedling placing table sliding operation arms are respectively extended from the left and right ends of the seedling resting table 5. 23a and 23b so as to be integrally movable and rotatable, and the drive shaft 25 of the vertical feeder 24 for the seedlings placed on the seedling rack 5 is rotatably horizontally mounted on the back side of the seedling rack 5. At the same time, the seedling feeding device of the rice transplanter is interlocked and connected to the seedling tray lateral feed shaft 16 via a mechanical interlocking mechanism 29 penetrating the seedling placement partition portion 5a of the seedling tray 5, A member 32 whose one end side is connected to a reinforcing rod 31 that connects both operating arms 23a, 23b, and whose other end side is connected to the seedling stand horizontal feed shaft 16 in a relatively rotatable manner,
A seedling feeding device for a rice transplanter that is located near a location where the interlocking mechanism 29 of the seedling table lateral feed shaft 16 is connected.