JP3143438B2 - 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 position of the member in the vertical feed direction around the horizontal axis in the horizontal direction
The seedling vertical feed direction accompanying the swing operation of the operated support arm
From the bottom of the seedling rest by moving it back and forth
The planting mechanism is configured to change the amount of seedlings taken out
The support arm and the seedling removal adjustment lever.
Connection lever, seedling removal adjustment lever and vertical feeder
And are connected by a wire.

When the supporting member of the seedling placing table is moved downward by the seedling removal adjusting lever to change the seedling collecting amount of the planting mechanism to multiple sides, the seedling feeding amount of the vertical feeding device is changed by the wire. Is automatically changed to the large side, and when the support member of the seedling rest is moved upward by the seedling removal adjusting lever to change the seedling removal amount of the planting mechanism to the small side, the vertical feeding device is moved by the wire. Seedling feed is automatically changed to the small side.

[0005]

With the structure described above,
When linking the support shaft for changing the seedling picking amount of the planting mechanism and the vertical feeding device, a linking rod connecting the support shaft and the seedling picking amount adjusting lever, and connecting the seedling collecting amount lever with the vertical feeding device. Since two types of linking members, ie, a linking rod and a wire, are provided as in the case of a wire, there is room for improvement in terms of simplification of the structure.

In the connecting rod connecting the support shaft and the seedling collecting amount adjusting lever, when the connecting rod is connected to a support arm extending from the support shaft to the seedling rest and supporting the supporting member of the seedling rest, A link rod is connected to a portion of the support arm between the support shaft and the support member of the seedling rest. In rice transplanters, the support shaft and the support member of the seedling rest are arranged close to each other, and the length of the support arm is set to be short. However, it is not easy to connect the linking rod to the support arm as described above, which complicates the shape of the linking rod. The present invention, in a rice transplanter, a vertical feeder adjusting structure in which the seedling feed amount of the vertical feeder is automatically changed with a change in the seedling picking amount of the planting mechanism,
It is intended to be simple.

[0007]

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 ladder for placing the seedlings and reciprocating in the horizontal direction, and a planting mechanism for taking out the seedlings from the lower part of the seedling pedestal and planting the seedlings on the rice paddy. A vertical feeding device for feeding the seedlings to the lower side of the stand is provided so that the seedling feed amount of the vertical feeding device can be changed. On the side opposite to the side where the seedlings are placed,
A rotatable support shaft is arranged in the left-right direction, a support arm extending from the support shaft toward the seedling nest side supports the support member, and the support shaft is rotated to adjust the position of the support member. By changing the height in the up and down direction, the amount of seedlings taken out by the planting mechanism from the lower part of the seedling rest can be changed, and the seedling rest extends from the support shaft with respect to the seedling rest.
Extending the arm portion to the opposite side , connecting the arm portion and the vertical feeding device with a wire, the seedling feeding amount of the vertical feeding device is reduced when the seedling collecting amount of the planting mechanism is reduced, and,
The support shaft and the longitudinal feed device are linked so that the seedling feed amount of the vertical feed device increases when the seedling collection amount of the planting mechanism increases, and the wire is connected to the arm portion at one end side.
Inner with the other end connected to the vertical feeder
Support the wire and its inner wire in the inserted
Consists of an outer wire that guides the slider to move freely
And a connecting end of the wire with respect to the arm portion and a vertical end.
Any of the connecting end to the feeder is
And the both ends of the outer wire
Are installed in a downward position with both lower ends open.
You.

[0008]

According to a first aspect of the present invention, in a case where the seedling feed amount of the vertical feeder is automatically changed in accordance with a change in the seedling picking amount of the planting mechanism, the first aspect of the present invention is characterized in that:
According to the characteristic of (1), the arm portion extended from the support shaft and the longitudinal feed device are connected by a wire. Thereby, by rotating the support shaft and changing the position of the support member of the seedling nest up and down by the support arm, and changing the seedling picking amount of the planting mechanism to the multi-side and the small side, The wire is pushed and pulled, and the seedling feed amount of the vertical feeder is changed to the large side and the small side.

According to the first aspect of the present invention, when the support shaft for changing the amount of seedlings to be taken by the planting mechanism is linked to the vertical feeder, the arm extending from the support shaft and the vertical feeder are connected by a wire. Therefore, as described in "Prior Art", it is referred to as a link rod connecting the support shaft and the seedling collecting amount adjusting lever, and a wire connecting the seedling collecting amount adjusting lever and the vertical feeding device. In addition, two types of link rod and wire
There is no need to provide a linking member. And connect the wires
Is also an arm near the support shaft,
The degree can be reduced.

[II] According to the feature of claim 1, the support arm extends from the support shaft to the seedling nest side, and the support arm supports the support member of the seedling nest. The arm portion extends to the opposite side (opposite to the support arm) from the mounting table, and the arm portion of the support shaft and the vertical feeder are connected by a wire. So
To connect the seedling removal amount changing unit and the vertical feeder
One end side is connected to the seedling removal amount changing section, and the other end
The inner wire connected to the vertical feeder on the side
The inner wire is supported in the inserted state, enabling relative sliding movement.
Whether it is composed of the outer wire to be guided
Simplifies the linking structure between the seedling collection change section and the vertical feeder
And easier than connecting rods
Support shaft and vertical feeder
Even if other devices are placed between them,
Wires can be arranged while avoiding. Accordingly
Position of the seedling collection change section and the vertical feeder,
It is hard to be restricted by the direction of operation, simplifying the structure and designing
Also has a high degree of freedom .

[III] Further, a connection side end of the wire with respect to the seedling collection changing portion.
Part and the connecting end to the longitudinal feeder
From the outer wire to the lower side.
Both ends are provided in a downward position with both lower ends open
Rainwater or seedlings in the outer wire.
It is difficult for muddy water to enter, and it is easy to get out once it enters
It is a thing.

[0012]

According to the first aspect of the present invention, in the vertical feeder adjusting structure of the rice transplanter, when the vertical feeder is linked with the support shaft for changing the amount of seedling picking of the planting mechanism, the support shaft (arm portion) is used. And the vertical feeder are connected by a wire, so that there is no need to provide two types of linking members as described in "Prior Art", thereby simplifying the adjustment structure of the vertical feeder. And the errors associated with coordination
Control of seedling collection with high precision by minimizing the accumulation of
Easy structure was obtained.

According to the first aspect of the present invention, a wire is connected to an arm extending from the support shaft for changing the amount of seedling picking of the planting mechanism to the side opposite to the support arm and the seedling rest. Interference with the support member of the support shaft and the seedling rest can be easily avoided, there is no need to bend the wire intricately, and other devices are arranged between the support shaft and the vertical feed device. In addition, since the wires can be arranged while easily avoiding them, it is possible to smoothly push and pull the wires while avoiding complication of the structure, and to operate the adjusting structure of the vertical feeder. Stabilization was achieved.

According to a first aspect of the present invention, a seedling of the wire is provided.
For the connection side end and the vertical feeder for the change amount
Arrange both ends of the connection side from the upper side to the lower side.
And put both ends of the outer wire together at the lower end
Is provided in an open downward position, so that the outer
-It is difficult for rainwater or muddy water on the seedling stand side to enter the wire.
Also, once you enter, it is easy to get out. Therefore, rice transplanter
Limited season and long term
If the device is to be left alone,
Avoid rusting due to large amounts of rainwater remaining on the
It is effective in gaining.

[0015]

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 support 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 moved up and down by a seedling removal amount adjusting lever 15. By sliding in the direction, the amount of seedlings collected by the planting mechanism 2 (planting claws 12) can be changed in a plurality of stages. A seedling removal amount adjusting lever 15 is connected to a horizontal shaft 16 (corresponding to a support shaft) rotatably supported in the lateral direction with respect to the planting case 9 in the vicinity of the sliding rail 14.
The support arm 17 that engages with the slide rail 14 extends from the base 6 toward the seedling rest 1 side, and the seedling picking amount adjusting lever 15 is operated up and down, so that the entirety of the slide rail 14 and the seed stand 1 is adjusted. The position can be changed in the vertical direction.

The seedling placing table 1 is provided with a vertical feeding device 18 for feeding a seedling toward the planting mechanism 2 at a predetermined seedling feeding amount 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 drive-side pulley 18b is externally fitted to a hexagonal drive 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 (corresponding to an arm portion) integrally formed on the horizontal axis 16 on the side opposite to the seedling rest 1, and The other end of the wire 29 is connected to the laterally extending portion 27a by screwing.

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.

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 accompanying 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 16 Support shaft 17 Support arm 18 Vertical feeder 29 Wire 30 Arm part

Claims (1)

(57) [Claims] 1. A seedling rest (1) on which seedlings are placed and which reciprocally moves sideways in a left-right direction, and a planting mechanism (2) for taking out seedlings from a lower part of the seedling rest (1) and planting the seedlings on a rice field. A vertical feeding device (18) for sending the seedlings placed on the seedling mounting (1) to a lower side of the seedling mounting (1), and a seedling feeding amount of the vertical feeding device (18). In the vicinity of a support member (14) that supports the lower part of the seedling rest (1) so as to be able to reciprocate and reciprocate in the left-right direction, opposite to the seedling rest of the seedling rest (1). A support shaft (16) that can freely rotate is disposed on the side, and a support arm (17) extending from the support shaft (16) toward the seedling rest (1) is provided with the support member. (14) is supported, and the position of the support member (14) is changed in the vertical direction by rotating the support shaft (16). By doing
The amount of seedlings taken out by the planting mechanism (2) from the lower part of the seedling stand (1) can be changed, and the support arm (17) extends from the support shaft (16).
Arm (30) on the side opposite to the seedling rest (1)
The arm (30) is connected to the vertical feeder (18) by a wire (29). When the amount of seedlings collected by the planting mechanism (2) decreases, the seedlings of the vertical feeder (18) are reduced. The support shaft (16) and the vertical feeder () are arranged so that the feed amount becomes smaller and the seedling picking amount of the planting mechanism (2) increases, so that the seedling feed amount of the vertical feeder (18) increases. 1
8), the wire (29) is connected at one end to the arm (30).
And the other end is connected to a vertical feeder (18).
Inner wire (29a) and its inner wire
(29a) is supported so that it can be slidably moved while being inserted.
And an inner wire (29b) provided therein, and the wire (29) is connected to the arm portion (30).
Between the connection side end and the connection side end to the longitudinal feed device (18).
Each of them is arranged in a posture facing downward from above, and
Both ends of the outer wire (29b) are open at the lower end.
A vertical feeder adjustment structure for a rice transplanter installed in a released downward position .