JP3143437B2 - Adjusting structure of vertical feeder of rice transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice transplanter having a vertical feeder for feeding seedlings placed on a seedling rest to a lower side.
The present invention relates to a vertical feeder adjusting structure for changing a seedling feed amount of a vertical feeder.

[0002]

2. Description of the Related Art In a rice transplanter, a planting mechanism is configured so that a seedling passes through a lower portion of a seedling pedestal and is taken out and planted on a rice field. The placed seedlings are configured to be sent to the lower side of the seedling nest by the vertical feeding device. In general, such a rice transplanter is configured so that the amount of seedlings collected by the planting mechanism can be changed. Therefore, when the amount of seedlings collected by the planting mechanism is changed, the amount of seedlings fed by the vertical feeder is adjusted accordingly. Also change
Irrespective of the change in the amount of seedlings collected by the planting mechanism, it is necessary to ensure that the seedlings placed on the seedling nest are sent to the lower side of the seedling nest by the vertical feeding device without any excess or shortage.

One example of a structure for changing the seedling feed amount of the vertical feeder in accordance with the change in seedling picking described above is disclosed in Japanese Utility Model Publication No. 4-3.
No. 2028 . In this structure, the seedling
Supports the lower part of the platform so that it can reciprocate horizontally in the left-right direction.
Swing the members around the horizontal axis in the horizontal direction to
Change the amount of seedlings taken out by the planting mechanism from the bottom
The support member and the seedling removal amount adjustment lever
With a rod, and with the seedling collection amount adjustment lever and vertical feed
Connected to the device by a wire. With this,
When the amount of seedlings collected by the planting mechanism is changed to multiple sides by the lever for adjusting the amount of seedlings, the amount of seedlings fed by the vertical feeder is automatically changed to the large side by the wire, and the amount of seedlings collected by the planting mechanism is changed by the lever for adjusting the amount of seedlings. When the amount is changed to the small side, the wire feeding amount of the vertical feeding device is automatically changed to the small side by the wire.

[0004]

Generally, the mechanism for changing the amount of seedlings collected by the planting mechanism described above moves the position of the support member for supporting the lower part of the seedling rest so as to be able to reciprocate and reciprocate horizontally in the left-right direction. change, is configured to change the seedling taking quantity taken out from the bottom of the seedling platform planting mechanism, seedlings
The mechanism for changing the take-out amount is in a position fixed state with respect to the seedling planting apparatus. On the other hand, the vertical feeding device is provided on a seedling rest that reciprocates and moves horizontally in the left-right direction, and the vertical feeding device reciprocates and moves horizontally in the left and right direction together with the seedling rest.
The present invention relates to a vertical feeder adjusting structure for a rice transplanter, in which a wire is properly connected to a mechanism for changing the amount of seedlings in a fixed position and a vertical feeder that reciprocates horizontally in a left-right direction. It is intended to be configured so that it can be arranged.

[0005]

The feature of the present invention resides in the following structure of the vertical feeder adjusting structure for a rice transplanter as described above. A seedling nest for placing the seedlings and reciprocating in the left-right direction, and a planting mechanism for taking out the seedlings from the lower part of the seedling nest and planting them on the rice field, A support member that includes a vertical feeder that feeds the lower part of the seedling cradle and is configured to be able to change a seedling feed amount of the vertical feeder, and that supports the lower part of the seedling cradle so that it can reciprocate and reciprocate horizontally in the left-right direction. The position of the planting mechanism is changed in the vertical direction, the planting mechanism comprises a seedling collecting amount changing unit that changes the seedling collecting amount taken out from the lower part of the seedling mounting table, and the seedling collecting amount of the planting mechanism is reduced. The seedling removal amount changing unit and the vertical feeding device are so arranged that the seedling feeding amount of the vertical feeding device is reduced, and the seedling feeding amount of the vertical feeding device is increased when the seedling harvesting amount of the planting mechanism is increased. comprising a linking wire, the wire, one end of the seedling-up amount Connected to the further part
Inner water with the other end connected to the vertical feeder
Support the ear and its inner wire in the inserted state and
And an outer wire that guides it so that it can slide freely .
The end of the wire on the connection side with respect to the seedling collection changing part and the vertical feeding
From the upper side to the lower side
At both ends of the outer wire.
Is provided in a downward position with both lower ends open.
Moni, is bent inverting the intermediate portion of Autawa ear, Wai
At the position close to the seedling mounting table and along the back
It is provided.

[0006]

[I] As described in the above-mentioned "Problem to be Solved by the Invention", the position of the support member for supporting the lower part of the seedling rest so as to be able to reciprocate and reciprocate in the left-right direction is changed in the vertical direction. The seedling picking amount changing unit that changes the seedling picking amount that the planting mechanism takes out from the lower part of the seedling mounting table is in a position fixed state with respect to the seedling planting device,
The vertical feeding device provided on the seedling rest moves reciprocally and horizontally in the left-right direction together with the seedling rest.

In such a state, when the seedling collecting amount changing section and the vertical feeder are linked by a wire, the first aspect is as follows.
As in the feature of (1), one end of the wire is connected to the seedling collecting amount changing unit from the upper side to the lower seedling collecting amount changing unit, and the wire is positioned from the upper side to the lower vertical feeding device. When the other end is connected to the vertical feeding device, the middle portion of the wire is bent, for example, in an inverted U shape or a mountain shape, and one end and the other end of the wire are directed to the lower seedling removal amount changing portion and the vertical feeding device. It becomes a state.

When the seedling rest and the vertical feeding device reciprocate and move laterally in the left-right direction in the above-mentioned state, the other end of the wire connected to the vertical feeding device is bent while the middle portion of the wire is bent or extended. , Together with the vertical feeder, and reciprocally and horizontally in the left-right direction. As a result, the reciprocating lateral movement of the seedling rest and the vertical feeding device in the left-right direction is absorbed by the middle portion of the wire, and the wire is imposed by the reciprocating lateral movement of the seedling rest and the vertical feeding device. There is no such thing as applying force.

[II] Then, a wire connecting the seedling collecting amount changing section and the vertical feeding device is connected to one end of the wire connected to the seedling collecting amount changing section.
An inner wire whose end is connected to the vertical feeder,
Relative sliding movement is possible by supporting the inner wire in the inserted state
Or one in which was formed from a guide to Au Tawaiya to
Simplifies the linking structure between the seedling collection change section and the vertical feeder
The seedling collection change section and vertical feeder
Installation position and operating direction
In addition, the structure is simplified and the degree of freedom in design is high .

[0010] Further, the wire seedling removal amount changing section is
What is the connection side end to be connected to the connection side end for the vertical feeder?
These are also placed in a posture facing downward from above, and
Both ends of the wire are facing downward with both lower ends open.
Is installed in a posture that allows
Where muddy water is hard to enter on the side of
It is easy to come out in any case.

[III] According to the first aspect of the present invention, when one end and the other end of the wire are connected to the seedling collecting amount changing portion and the vertical feeding device, one end of the wire is located at a position close to the seedling rest. And the other end side is connected to the seedling collection change part and the vertical feeding device from the upper side to the lower side in a state substantially along the seedling rest. This makes it possible to arrange the wires so as to substantially follow the seedling rest, so that there is no need to set a large arrangement space for the wires on the side opposite to the seedling rest surface of the seedling rest. .

In this way, the intermediate portion of the wire is, for example,
By bending and reversing like an inverted U-shape or chevron, if it can be arranged so as to substantially follow the seedling rest as a whole, by reciprocating lateral movement of the seedling rest and the vertical feed device in the left-right direction,
Since the range in which the middle part of the wire moves is small along the seedling rest, the middle part of the wire is moved by the reciprocating horizontal movement of the seedling rest and the vertical feeder so that the seedling removal amount changing part It is less likely to be caught by another device located near the feeder.

[0013]

According to the first aspect of the present invention, in the structure for adjusting the vertical feeder of the rice transplanter, when the seedling collecting amount changing section and the vertical feeder are linked by a wire, the horizontal position of the seedling holder and the vertical feeder is adjusted. The reciprocating lateral movement is absorbed by the middle part of the wire,
It was possible to prevent an excessive force from being applied to the wire, prevent the wire from being damaged, and improve the durability of the adjustment structure of the vertical feeder. Also, the linkage between the seedling collection change unit and the vertical feeder
The structure can be simplified and the amount of seedlings collected can be changed
Restrictions on the position and operating direction of the feeder and longitudinal feeder relative to each other
Simplicity of structure and high design flexibility
It becomes

[0014] Further, the wire seedling removal amount changing section is
What is the connection side end to be connected to the connection side end for the vertical feeder?
These are also placed in a posture facing downward from above, and
Both ends of the wire are facing downward with both lower ends open.
Is installed in a posture that allows
Where muddy water is hard to enter on the side of
It is easy to come out. Therefore, like a rice transplanter,
Limited seasons, such as being left for a long time
If it is a device, a large amount of rainwater etc.
Is effective in avoiding the occurrence of rust, etc.
You.

According to the first aspect of the present invention, the wire can be arranged so as to substantially follow the back of the seedling rest at a position entirely adjacent to the seedling rest, and the seedling rest of the seedling rest is provided. Since it is not necessary to set a large arrangement space for the wire on the side opposite to the surface, it is advantageous in terms of making the adjustment structure of the vertical feeder compact.

[0016]

Embodiments will be described below with reference to the drawings. FIG.
FIG. 4 shows a seedling planting apparatus. This seedling planting apparatus comprises a seedling stand 1 for placing a seedling and reciprocating in a horizontal direction with a constant stroke, and six planting mechanisms 2 for taking out seedlings from the lower part of the seedling stand 1 and planting the seedlings on the rice field. It is configured to include three leveling floats 3 and the like, and is connected to the rear part of a riding type traveling body (not shown) via a link mechanism 4 so as to be able to move up and down and to roll around the longitudinal axis Y. I have.

As shown in FIGS. 1 and 4, the link mechanism 4
A feed case 6 is attached to a pivot boss 5 formed on the rear link 4a so as to be relatively rotatable around the longitudinal axis Y,
Below the feed case 6, a square pipe-shaped main frame 7 is connected by bolting. The main frame 7 extends in the lateral direction, and is configured by connecting a pair of sheet metal members bent and formed in a U-shaped cross section by welding at a mating surface portion. Power is transmitted to the feed case 6 from the traveling machine body via the power take-off shaft 8, and the transmitted power is transmitted to the seedling nest 1 inside the feed case 6 by a lateral feed drive mechanism (not shown) and planting. It is configured to transmit to the mechanism 2.

As shown in FIGS. 1 and 4, three planting cases 9 are provided at a predetermined interval on the rear side of the main frame 7.
Are connected to each other by bolts in a cantilever shape toward the rear, and are provided with planting mechanisms 2 on the left and right sides of the rear part of the planting case 9 to form a six-row planting type. The rotating case 11 is driven to rotate via a chain transmission mechanism 10 housed in the planting case 9, and the rotating case 11 is rotated with the rotation of the rotating case 11.
The cam case (not shown) provided in the rotating case 11
The planting mechanism 2 is configured so that the tips of the planting claws 12 attached to both ends of the above-mentioned member move up and down while drawing a substantially elliptical locus. Power is transmitted from the feed case 6 to the planting mechanism 2 via a lateral drive shaft 13 disposed on the rear side and outside of the main frame 7.

As shown in FIGS. 2 and 1, a sliding rail 14 (corresponding to a supporting member) for supporting the lower part of the seedling rest 1 so as to be able to reciprocate and reciprocate in the left-right direction is provided.
It is configured such that the amount of seedlings collected by the planting mechanism 2 (planting claws 12) can be changed in a plurality of stages by sliding operation in the up and down direction (corresponding to a seedling collecting amount changing unit). Sliding rail 1
4 is connected to a horizontal shaft 16 rotatably supported with respect to the planting case 9 in the vicinity of the planting case 9.
The support arm 17 engaging with the slide rail 14 is extended from 6 and the whole position of the slide rail 14 and the seedling gantry 1 is changed in the vertical direction by operating the seedling collecting amount adjusting lever 15 up and down. It is configured to be able to.

The seedling placing table 1 is provided with a vertical feeding device 18 for feeding the seedlings at a predetermined seedling feeding amount toward the planting mechanism 2 at the stroke end of the reciprocating lateral movement for each planting line. As shown in FIG. 2, the vertical feed device 18 includes a pair of upper and lower pulleys 18.
a, 18b, endless vertical feed belt 18 with protrusions
It is configured to operate by winding and winding c and drivingly rotating the lower pulley 18b.

A pulley 18b on the driving side is externally mounted on a hexagonal driving shaft 20 extending over substantially the entire width of the seedling rest 1 so as to be capable of transmitting torque. A drive arm 22 is provided which extends through a not-shown portion and is urged to rotate downward. At the stroke end of the reciprocating lateral movement of the seedling rest 1, the rotating cam 24 of the rotating shaft 23 projecting laterally and outward from the feed case 6 comes into contact with the drive arm 22 and is driven to rotate by a predetermined amount to rotate vertically. The belt 18c is configured to be rotationally driven by a predetermined amount.

As shown in FIG. 2 and FIG.
2, a regulating pin 25 for setting the standby position of the drive arm 22 is provided so as to be freely adjustable in the rotation direction of the drive arm 22, so that the amount of seedlings fed by the rotary cam 24 to the vertical feed belt 18c can be changed. It is configured as follows. Drive arm 2
A pair of right and left support members 26 externally fitted to the drive shaft 20 on both left and right sides of the pair 2 support and prevent the restricting pin 25 from being inserted. With the drive arm 22 straddling from above, the U-shaped linking member 27 is inserted into the right and left ends of the regulating pin 25 and engaged therewith. Is being urged. By such insertion engagement,
A troublesome production process such as welding of a cantilevered member is not required, and the structure is less likely to be stiff and rattle.

As shown in FIGS. 2 and 3, one end of a wire 29 is connected to an arm 30 formed integrally with the horizontal shaft 16,
The other end of the wire 29 is connected to the laterally extending portion 27a on the upper part of the linking member 27 with a screw. In this case, on the opposite side of the seedling rest 1 from the upper side of the seedling rest 1, in a position close to the seedling rest 1, facing the seedling rest adjusting lever 15 from above. , One end of the wire 29 is connected to the arm 30, and the vertical feeder 1 is arranged from the upper side to the lower side substantially along the seedling rest 1 at a position close to the seedling rest 1.
8, the other end of the wire 29 is screwed and connected to the laterally extending portion 27 a of the linking member 27.

With the above structure, the seedling collecting amount adjusting lever 15 is operated upward in FIGS.
Is changed to the multiple side, the wire 29 is returned to the linking member 27 side, and the standby position of the drive arm 22 set by the regulating pin 25 is changed to the lower side.
Thereby, the stroke when the drive arm 22 is rotationally driven from the standby position to the upper feed position by the rotary cam 24 is increased, and the seedling feed amount of the vertical feed belt 8c is increased.

Conversely, when the seedling collecting amount adjusting lever 15 is operated downward to change the seedling collecting amount of the planting mechanism 2 to a small side, the wire 29 is pulled toward the seedling collecting amount adjusting lever 15 side.
The standby position of the drive arm 22 set by the restriction pin 25 is changed to the upper side. Thereby, the rotating cam 24
As a result, the stroke when the drive arm 22 is rotationally driven from the standby position to the upper feed position is reduced, and the seedling feed amount of the vertical feed belt 8c is reduced.

As described above, when the amount of seedlings collected by the planting mechanism 2 is changed to multiple sides while allowing the reciprocating lateral movement of the seedling placing table 1 in the left-right direction, the amount of seedlings fed by the vertical feed belt 8c is automatically increased. When the seedling collection amount of the planting mechanism 2 is changed to the small side, the seedling feed amount of the vertical feed belt 8c is automatically changed to the small side. Accordingly, in this structure, the seedling picking amount adjusting lever 15 is also used as an adjusting lever for the seedling feeding amount of the vertical feed belt 8c. As described above, instead of the structure that also functions as the seedling feed amount adjusting lever 15 and the seedling picking amount adjusting lever 15 of the vertical feed belt 8c, a configuration is provided in which an adjustment lever dedicated to changing the seedling feed amount of the vertical feed belt 8c is provided. Is also good.

[0027] In the claims, reference numerals are provided to facilitate 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 an overall side view of a seedling planting apparatus.

FIG. 2 is a side view of a vertical feeder.

FIG. 3 is a front view showing a structure for changing a seedling feed amount of a vertical feed belt in the vertical feed device.

FIG. 4 is a plan view of the seedling planting apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seedling stand 2 Planting mechanism 14 Support member 15 Seedling removal amount change part 18 Vertical feeder 29 Wire

Claims (1)

(57) [Claims] 1. A seedling is placed and reciprocally moves sideways in the left-right direction.
Seedlings (1) and seedlings from the bottom of the seedlings (1)
A planting mechanism (2) for taking out and planting the plant on the rice field, wherein the seedling placed on the seedling rest (1) is placed on the seedling rest.
(1) equipped with a vertical feeder (18) for feeding to the lower side,
The vertical feeding device (18) is configured so that the amount of seedlings to be fed can be changed, and the lower part of the seedling stand (1) can be reciprocated and moved horizontally in the left-right direction.
Change the position of the support member (14)
And the planting mechanism (2) from the lower part of the seedling rest (1).
Change unit (15) for changing the amount of seedlings to be extracted
When the amount of seedlings collected by the planting mechanism (2) is reduced, the vertical feeding is performed.
Seedling feed amount of the planting device (18) is reduced, and
When the amount of seedlings collected by the attachment mechanism (2) increases, the vertical feeding device
(18) The seedling collection amount is set so that the seedling feed amount is increased.
A wire connecting the change unit (15) and the vertical feeder (18)
(29),One end of the wire (29) is connected to the seedling removal amount changing unit.
(15) and the other end side is a vertical feeder (18)
And an inner wire (29a) connected to the
-Relative sliding movement while supporting the wire (29a) in the inserted state
Consists of an outer wire (29b) that guides freely
 AndThe wire (29) for the seedling collecting amount changing unit (15)
Connection side end and connection side end to longitudinal feeder (18)
Both are arranged in a posture facing downward from above, and
Both ends of the outer wire (29b), both bottom ends
Install in an open downward position and
The wire (2b) is obtained by bending and reversing the middle portion of the wire (29b).
9) near the seedling mounting table (1) and along the back
Provided Vertical feeder adjustment structure of rice transplanter.