JP2635866B2 - Seedling stand structure of seedling planting equipment for multi-row planting - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a seedling nest corresponding to each planting strip, which is integrally arranged side by side on the left and right, so that the seedling nest can be reciprocally traversed in the left-right direction. The present invention relates to a seedling mounting structure of a multiple-row seedling planting apparatus provided with a belt-type vertical feeding device for feeding a seedling vertically to a lower seedling outlet at a stroke end of horizontal feeding.

[0002]

2. Description of the Related Art Conventionally, as a seedling mounting structure of a seedling planting apparatus for a plurality of seedlings of this type, a belt-type vertical feeding device is driven as disclosed in, for example, Japanese Utility Model Laid-Open No. 2-93916. The transmission is performed by a single one-way clutch connected to one drive shaft in a state where the drive wheels of the belt type vertical feed device of each strip are integrally connected.

[0003]

However, in the above-described conventional structure, since the rotation of the drive shaft after the one-way clutch is transmitted to the entire vertical feeder, the state of the seedlings in each strip and the Even if there is a difference in the degree of reduction of seedlings due to a manufacturing assembly error of a belt pulley or the like in the vertical feed device corresponding to the strip, it is impossible to correct the difference, and therefore, there is a slight difference in the degree of reduction. If the seedlings disappear from the seedling mounting table in order in this state, the seedling supply work to be performed when the seedlings are lost one by one must be concentrated in a short time and the start and stop of the planting work must be repeated, which is a troublesome work. Was. Further, in the above-mentioned conventional structure, since it is not possible to prevent only the seedlings of an arbitrary row from being vertically fed, for example, when switching from a normal operation to performing a few-row planting operation, the seedlings of the strips which are not fed vertically are put on a seedling rest. There was annoyance that I had to remove it from.

The present invention has been made in view of the above-mentioned circumstances, and it is possible to adjust the degree of seedling reduction in each line so as to be uniform, so that only arbitrary lines are not selectively fed vertically. It is an object of the present invention to provide a seedling rest structure for a multiple-row seedling planting device that can be made.

[0005]

In order to achieve the above object, the seedling mounting structure of the multi-row seedling planting apparatus according to the present invention is the same as that of the first embodiment, wherein A corresponding one-way clutch is provided, and an operating arm for pressing and rotating each one of the clutches is provided, and each of the operating arms is connected to one drive shaft common to the vertical feeders. It is characterized by being connected. The operation and effect of this characteristic configuration are as follows.

[0006]

In other words, a one-way clutch is provided corresponding to each longitudinal feed device of each line, and each one-way clutch is connected to one drive shaft common to each longitudinal feed device, and each one-way clutch is connected. The operation arms of the vertical feeders can be simultaneously driven via one drive shaft, or can be individually adjusted for each vertical feeder. Therefore, it is possible to adjust the vertical feed amount of each line by adjusting the operation start position and the operation end position of the member for operating the one-way clutch and the operated member in accordance with the reduction of the number of seedlings in each line. Becomes In addition, by adjusting the vertical feed amount to zero, it is possible to cut off power transmission to the vertical feed device in an arbitrary condition.

[0007]

Therefore, by adjusting the operating state of the one-way clutch corresponding to each line, it is possible to uniformly reduce the number of seedlings at each line. Since it is possible to perform it at one time, it is possible to reduce the trouble of the seedling supply work, and it is possible to select only an arbitrary row and stop the vertical feeding, so that seedlings corresponding to the strips that do not feed vertically are placed on the seedlings It also saves the trouble of removing it from the camera, eliminating the hassle.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 shows a seedling planting apparatus A for 6-row planting, which is attached to a rear end of a traveling machine body (not shown) via a lifting link mechanism so as to be able to move up and down. In the seedling planting apparatus A, a transmission case 2 to which power is input from a running machine is fixedly installed on a horizontal frame 1 made of a square pipe connected to a lifting link mechanism, and power is distributed from the transmission case 2, Three sets of planting chain cases 4 having a pair of planting arms 3 at the tip are fixedly installed on the horizontal frame 1, and seedling rests 5 ‥ corresponding to the respective lines are integrally arranged side by side on the left and right. The seedling rests 5 ‥ are configured to be reciprocally traversable in the left-right direction with respect to the transmission case 2 and are provided on the planting arm 3 from the seedling outlet 6 at the lower end of each seedling rest 5 ‥. The planting claw 7 is configured to be able to take out a seedling. Also, as shown in FIGS. 1 to 6,
Seedling W placed at the end of the lateral feed stroke of seedling rest 5
A belt type vertical feeding device 8 for feeding the seedlings vertically to the seedling removal outlet is provided in each of the seedling placing stands 5 #.

[0009] As shown in FIG.
A member in which a mounting portion 5a on which the seedling W is mounted and partition walls 5b, 5b raised on both right and left sides of the mounting portion 5a are arranged side by side, are arranged side by side, and are abutted and abutted. The partition walls 5b, 5b are integrally connected via a connecting member 20. A spacer can be interposed between the partition walls 5b, 5b so as to be able to cope with different widths of the streaks. Then, the integrally formed seedling rest 5 ‥ is guided by the guide rail 9 forming the seedling take-out port 6 in a laterally reciprocating and laterally slidable manner. This is performed by a feed screw mechanism (not shown) provided.

Next, the vertical feeder 8 will be described. As shown in FIG. 1, one drive shaft 10 is rotatably supported by an alligator bracket 11 on the back surface of the entire seedling mounting stand 5 ‥, and one end of the drive shaft 10 is provided with a seedling. At the stroke end of the right and left reciprocating movement of the mounting table 5 #, the arm 5 enters the rotation locus of the pair of left and right arm members 23, 23 which rotates in conjunction with the feed screw of the feed screw mechanism, and the vertical feed driving force is applied from the arm members 23, 23. The receiving arm 12 which receives the rotating action is integrally connected. Belt 8 with projection of vertical feeding device 8 of 5 mm
The drive pulley for winding b is constituted by a cylindrical boss 8a, and the cylindrical boss 8a is fitted around the drive shaft 10 in a free running state. Then, the drive shaft 10 and the cylindrical boss 8a
Means that transmission is possible via a one-way clutch 13 provided corresponding to the longitudinal feed device 8 of each strip. That is,
As shown in FIGS. 4 to 6, the one-way clutch 13 includes a ratchet wheel 13a integrally formed with the cylindrical boss 8a and a driven arm 1 which is loosely supported by the drive shaft 10 and is urged by a spring.
3b, a feed pawl 13c pivotally attached to the end of the driven arm 13b and locked by the ratchet wheel 13a, and elastically urged against the ratchet; A drive arm 13d is provided as an operation arm that pushes the drive shaft 13b with the rotation of the drive shaft 10 via the pivot pin 13e of the feed claw 13c. Accordingly, the drive arm 13d rotates together with the drive shaft 10 which is rotationally driven at the stroke end, and the drive arm 13d pushes the driven arm 13b in the contact range with the driven arm 13b accompanying the rotation, and the pushing operation Feeding claw 13
c rotates the ratchet wheel 13a, and eventually the cylindrical boss 8a and the belt with projection 8b.

As shown in FIGS. 3 to 6, a driving arm 13d of a driven arm 13b is provided so that the vertical feeding amount of the vertical feeding device 8 can be changed and adjusted for each seedling stand 5 ‥.
A mechanism is provided for changing the return position when the push operation by the user is released, that is, the start position of the push operation by the drive arm 13d of the driven arm 13b. More specifically, the feed claw 13 of the driven arm 13b is provided on each seedling rest 5.
By connecting one end of the release wire 14 to the pivot pin 13e of (c), and connecting the other end of the release wire 14 to the adjustment lever 15 pivotally attached to the upper rear of the seedling rest 5,
The return position of the driven arm 13b is changed via the release wire 14 corresponding to an arbitrary swing operation position of the adjustment lever 15. Further, there is provided a lever holder 16 having a guide groove capable of engaging and holding the adjustment lever 15 so that the adjustment lever 15 can be held at a desired adjustment position. This change in the return position of the driven arm 13b changes the pushing operation range of the drive arm 13d with respect to the driven arm 13b, and thus the vertical feed amount of the vertical feed device 8 is changed. If the return position of the driven arm 13b is adjusted to a position where it does not come into contact with the drive arm 13d, the transmission to the one-way clutch 13 is not performed, and the seedling is not fed vertically.

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

[Brief description of the drawings]

FIG. 1 is a cutaway rear view showing a seedling rest and a transmission case.

FIG. 2 is a side view showing a seedling planting apparatus.

FIG. 3 is a longitudinal sectional side view showing a seedling mounting table and a mechanism for adjusting a feeding amount of a vertical feeding device.

FIG. 4 is a cross-sectional plan view showing a one-way clutch of a vertical feed device.

FIG. 5 is a longitudinal sectional side view showing a one-way clutch of a longitudinal feed device and a transmission structure to a drive shaft.

FIG. 6 is a cross-sectional plan view showing a connection structure of a seedling rest.

FIG. 7 is a cross-sectional plan view showing a connection structure of a seedling rest.

[Explanation of symbols]

 5 Seedling stand 8 Belt type vertical feeder 10 Drive shaft 13 One-way clutch 13d Operation arm

Claims (1)

(57) [Claims] 1. A seedling rest (5) corresponding to each planting strip is integrally arranged side by side on the left and right, and the seedling rest (5) is configured to be capable of reciprocating and laterally traversing in the left-right direction. A belt-type vertical feeding device (8) for feeding the seedlings vertically to the lower seedling outlet at the stroke end of the horizontal feeding is provided on the seedling mounting device (5) provided in each of the seedling mounting tables (5). In the base structure, a one-way clutch is provided corresponding to each of the vertical feeders (8).
(13) and each one of them
H (13) to rotate the operation arm (13)
d) and each of the operating arms (13d)
To one drive shaft (1) common to each of the vertical feeders (8).
The seedling stand structure of the multiple-row seedling planting apparatus connected to 0).