JPH0748012Y2 - Rice transplanter clutch operation structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a rice transplanter, and more particularly to a structure for operating a clutch of a planting strip.

[Conventional technology]

In a riding type rice transplanter having a plurality of planting strips, for example, as disclosed in Japanese Patent Laid-Open No. 61-17304, each of the planting arm and the vertical feeding mechanism for seedlings provided in each planting strip. There is a clutch provided on the same side, and the clutch for the planting arm and the clutch for the vertical feed mechanism in one planting strip can be simultaneously operated by one operating lever to open and close. It is possible to stop planting seedlings in a specific planting article within the planting article.

[Problems to be solved by the device]

According to the disclosed structure, a dedicated operating lever is provided for each planting strip, resulting in a large number of operating levers. (The disclosed structure is 4
Since the plants are lined, four operation levers for stopping planting are provided for each planting line. ) In addition to the above-mentioned operation lever, the riding type rice transplanter is equipped with a lever for traveling speed change and a lever for raising and lowering the seedling planting device, so the lever is changed when the number of various operation levers increases. There is a risk of operating the wrong lever when doing so.

Here, the present invention has been made by paying attention to the above-mentioned situation, and an object thereof is to reduce the above-mentioned malfunctions.

[Means for Solving the Problems]

The feature of the present invention is that, in the rice transplanter as described above, the shift operation of one operation member to the forward / reverse and intermediate positions can be performed.
Switchable between three states: first or second state in which power is transmitted to one of the right and left planting arms with respect to a pair of adjacent planting arms, and third state in which power is transmitted to both left and right planting arms. Along with a planted arm clutch, a pair of vertical feeding mechanism for seedlings corresponding to both the planted arms is provided.
A first or second state in which power is transmitted to one of the right and left vertical feed mechanisms and a power is transmitted to both left and right vertical feed mechanisms by shifting operation of one operating member to the forward / reverse and intermediate positions. A vertical feed clutch that can be switched between three states is provided, and one operating lever is mechanically linked to the planted arm clutch and the vertical feed clutch, and the operating lever and the planted arm clutch are vertically linked. This is because the feed clutch can be simultaneously operated in the first state, the second state, and the third state, and the action and effect thereof are as follows.

[Action]

If comprised as mentioned above, the 3rd of the 1st and 2nd state which stops one right and left planting strip in two adjacent planting strips, and the 3rd state which plants also in two planting strips.
One state can be made to appear by one operation lever, and it becomes possible to use one operation lever for stopping planting, which was conventionally provided with two for two planting ridges.

[Effect of device]

As mentioned above, the number of operation levers for stopping planting is reduced to 1
The book operation lever allows two operations, which reduces the need to change the lever when stopping planting, which is effective in preventing erroneous operation.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the drawings using a riding type rice transplanter which is one of the rice transplanters.

As shown in FIG. 4, there is provided a planting case (31) which is rotationally driven around the horizontal axis (P ₁ ) of the transmission case (14) extended rearward from the planting mission (1), The planting arms (2) are pivotally supported at both ends of the planting case (31), and the seedling stand (4) is reciprocally laterally driven on the guide rails (3) of the planting mission (1). ) Is equipped with a seedling planting device for a four-row riding type rice transplanter.

The lateral feed drive structure of the seedling stand (4) will be described in detail. As shown in FIGS. 2 and 4, one lateral feed shaft (5) projects from the left and right of the planting mission (1). A support member (6) for the seedling stand (4) is connected to the left and right of the transverse feed shaft (5). A reinforcing member (7) is erected and connected across both upper ends of the support member (6) and is swingably connected around the horizontal axis (P ₂ ) at the lower end of the support member (6). An arm (8) is attached, and this connecting arm (8) is attached to the rear surface of the seedling stand (4). With the above-mentioned structure, the seedling placing table (4) is slid on the guide rail (3) by laterally driving the entire lateral feeding shaft (5) left and right.

Next, the structure of the longitudinal feeding of the mat-like seedlings (A) on the seedling stand (4) will be described in detail. As shown in FIGS. 2 and 4, a hexagonal shaft ( 15) is rotatably supported, and a cylindrical drive roller (9) having a length corresponding to the width of one mat-shaped seedling (A) is attached to the hexagonal shaft (15).
It is loosely fitted to the four places. The left and right drive rollers (9) are connected to each other via a cylindrical connecting member (10), and the connecting member (10) and a longitudinal feed clutch (16) -side portion to be described later are used for supporting. The bracket (11) is externally fitted, and the bracket (11) is connected to the rear surface of the seedling stand (4). Further, a driven roller (12) is arranged above the seedling stand (4), and the driven roller (12) and the driving roller (9) are arranged.
A feed belt as a vertical feed mechanism (13) is wound around the.

When the seedling stand (4) reaches the stroke end of the lateral feed, the hexagonal shaft (15) is rotated by a set angle. To describe the structure in detail, both supporters are supported as shown in FIG. A first rotating shaft (17) is installed over the member (6), and a first rotating shaft (17) is provided at one end of the first rotating shaft (17).
A rod (19) is installed so as to extend over the arm (17a) and the drive section (18) of the hexagonal shaft (15). The drive unit (1
8) is fitted on the hexagonal shaft (15) and has a one-way clutch that allows only the downward rotation of the hexagonal shaft (15) and the feed belt (13) toward the seedling feeding side.

As shown in the figure, crank arms (20) are provided on both sides of the planting mission (1), which are rotatably driven in conjunction with the lateral feed of the seedling stand (4). ) Reaches one stroke end of the lateral feed, the crank arm (20) causes the second arm (17) of the first rotating shaft (17).
It comes in contact with b) from below and pushes it up, so that the first rotating shaft (17), the first arm (17a), the rod (19), and the drive section (1
The hexagonal shaft (15) is rotated by a set angle via 8),
This rotational power is transmitted to the drive roller (9) via the vertical feed clutch (16), and the mat belt (A) of the seedling stand (4) is moved downward (guide rail (3)) by the feed belt (13). Side).

Next, the vertical feed clutch (16) will be described in detail. As shown in FIGS. 2 and 3, a shift member as an operating member (21) is integrated with the hexagonal shaft (15) at the center of the hexagonal shaft (15). It is attached so as to be rotatable and slidable in the axial direction, and when the shift member (21) is positioned at the center as shown in FIG. 2, the shift member (21) moves to the left and right drive rollers (9). Bites on both occlusal parts (9a), hexagonal axis (15)
At the same time, all the drive rollers (9) rotate integrally.
When the shift member (21) is slid rightward or leftward as shown in FIG. 3, the shift member (21) moves away from the occlusal portion (9a) of the other drive roller (9). The drive roller (9) for two rows on the side where 21) is engaged rotates together with the hexagonal shaft (15), and the drive roller (9) for the other two rows stops.

Next, the planting arm clutch (22) that distributes power to the adjacent planting cases (31) will be described in detail. As shown in FIGS. 1 and 3, a pair of transmissions is transmitted in the planting mission (1). The shafts (23a) and (23b) are concentrically butted and supported, and a chain gear (24) is fitted onto the butted portion so as to freely rotate, so that power is transmitted via the chain (25). It has been transmitted to this chain gear (24). Then, shift members (26a) and (26b) are slidably arranged on both sides of the chain gear (24) by a spline structure so that the transmission shafts (23a) and (2
The shift members (26a) and (26b) are urged toward the chain gear (24) by a spring (27) while being attached to the chain gear (3b).

On the other hand, one shift shaft as an operating member (28) is slidably supported in the axial direction in parallel with the transmission shafts (23a) and (23b), and two shift shafts (28) are connected to each other. Book shift forks (28a), (28b) are extended.
In the state shown in FIG. 3, the shift shaft (28) is on the right side (R-OFF).
And shift the right shift member (26b) to the chain gear (2
4) It is in a state of being separated from, and the power is on the left transmission shaft (23a)
Is transmitted as rotational power of the left two-row planting case (31) via the chain transmission mechanism (29a).

Then, as shown in FIG. 1, when the shift shaft (28) is returned to the central position (ON), it is separated from the shift member (26b).
Is engaged with the chain gear (24), so that the power is transmitted through the left transmission shafts (23a) and (23b) and the chain transmissions (29a) and (29b). 31) will be transmitted. In addition, if you want to stop the two left side planting, if you operate the shift shaft (28) further to the left (L-OFF), the right shift member (26b).
The left shift member (26a) can be separated from the chain gear (24) while the gear meshes with the chain gear (24).

Next, the structure for operating the longitudinal feed clutch (16) and the planting arm clutch (22) with one operating lever (30) will be described in detail. As shown in FIGS. The operation lever (30) is supported so as to be swingable around the axis center (P ₃ ) of the, and the lower end of the operation lever (30) and the shift shaft (28) of the planted arm clutch (22) are connected. ing. On the other hand, in the lever guide (33) of the operation lever (30), the balance arm (34) is swingably supported around the vertical axis (P ₄ ) and the operation arm of the balance arm (34) is also supported. (34a) and a shift arm (35) for operating the shift member (21) of the longitudinal feed clutch (16) are connected via a wire (36), and a spring (32) for returning operation to the shift arm (35). Is attached.

With the above structure, move the operating lever (33) to the lever guide (3
If the operation lever (30) is engaged in the center position (ON) of 3) and fixed, the operation lever (30) is engaged in the recess (34b) of the balance arm (34) and the balance arm (34) is also fixed in the neutral state. become,
The longitudinal feed clutch (16) and the planted arm clutch (22) are in the states shown in FIGS. 1 and 2. In other words, planting will be done in all planting articles. Then, as shown in FIG. 3, for example, operate the operation lever (30) (R
-If it is engaged and fixed in the (OFF) position, the planting arm clutch (22) is operated to the side where the operation of the planting case (31) of the two right planting strips stops, and it is operated together with this. The balance arm (34) is oscillated by the lever (30) and the wire (36) is pulled to operate the longitudinal feed clutch (16) to the right two-row stop side as shown in the figure. As a result, the two planting strips on the right side stop.

In the above-described embodiment, in the four-row Ueda planting machine, the left two rows are regarded as one group, and the right two rows are regarded as one group, and one operating lever is provided for both groups.
It is also possible to adopt a structure in which one operation lever of the present invention is provided for a row planter.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a plan view showing a structure around a planted arm clutch and an operation lever, FIG. 2 is a plan view showing a lateral feed structure, a vertical feed structure and a vertical feed clutch structure of a seedling stand, and FIG. 3 is an operation. The linkage structure between the lever and the planted arm clutch and the vertical feed clutch is shown. The state in which the two planted strips on the right side are stopped from the state of the planted arm clutch and the vertical feed clutch shown in FIGS. 1 and 2 is shown. The figure and FIG. 4 are overall side views of the seedling planting apparatus. (2) ...... planting arm, (13) ... longitudinal feed mechanism, (16)
…… Longitudinal feed clutch, (22) …… Planted arm clutch,
(30) …… Operating lever.

Claims (1)

[Scope of utility model registration request] 1. A right or left side planting arm with respect to a pair of adjacent planting arms (2), (2) by shifting operation of one operating member (28) to the forward / reverse direction and an intermediate position. (2), a planting arm capable of switching to three states of a first state or a second state in which power is transmitted to (2) and a third state in which power is transmitted to both left and right planting arms (2) and (2). A clutch (23) is provided, and both the planted arms (2),
Vertical feed mechanism for paired seedlings (13), (13) corresponding to (2)
The first or second state in which power is transmitted to one of the right and left vertical feed mechanisms (13) and (13) by the shift operation of one operation member (21) to the forward / reverse and intermediate positions. In addition, the vertical feed clutch (1) capable of switching to three states of the third state in which power is transmitted to the left and right vertical feed mechanisms (13) and (13).
6) is provided to mechanically interlock one operating lever (30) with the planted arm clutch (22) and the vertical feed clutch (16), and the planted arm clutch is provided by the operating lever (30). (22) and longitudinal feed clutch (16) at the same time
The clutch operating structure of the rice transplanter that can be operated in the second state, the third state, and the third state.