JPH08821Y2 - Rice transplanter spare seedling supply structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] In the present invention, a preliminary seedling accommodation device is arranged above a seedling placing surface with respect to a seedling mounting table in an inclined posture. The present invention relates to a spare seedling supply structure for a rice transplanter, which is configured so that the apparatus can be switched between a state in which a preliminary seedling is placed and held and a state in which a seedling is fed and moved on the seedling placing table in a steeply inclined posture.

[Conventional technology]

In the above-mentioned preliminary seedling supply structure, conventionally, for example, as disclosed in JP-B-57-46324, the receiving frame on the lower side of the seedling falling direction of the preliminary seedling accommodation device is provided close to the seedling stand. There was a structure that opened in conjunction with the operation.

[Problems to be solved by the device]

The structure of the above-mentioned reference is designed to prevent the preliminary seedlings from sliding downward during the switching swing of the preliminary seedling accommodation device.

However, in the structure of the above-mentioned reference, at the time of supplying the preliminary seedlings, the inclination of the preliminary seedling accommodation device is substantially the same as that of the seedling stand, so the seedling vigorously slides down due to its own weight, and the lower end of the seedling stand is lowered. Will collide against the rest of the seedlings.

Then, due to the pressure of the spare seedling itself at the time of the collision, the lower region of the seedling was bent and lifted up like a shingling insect, and the seedling sometimes collapsed.

An object of the present invention is to eliminate the above-mentioned inconveniences by weakening the sliding down of the spare seedlings when supplying the spare seedlings.

[Means for solving the problem]

The feature of the preliminary seedling supply structure of the rice transplanter according to the present invention is that the preliminary seedling accommodation device is arranged above the seedling placing surface with respect to the seedling placing table in the inclined posture, and the preliminary seedling accommodation device is provided. The state in which the end on the side of the seedling delivery port holds the preliminary seedling in a floating posture away from the seedling placing surface of the seedling placing table, and the end on the side of the seedling delivery port from the state of holding this seedling A spare seedling supply structure for a rice transplanter, which is configured to be swingable to a seedling supply state in which a part is tilted downward and has a steeply inclined position to move the spare seedling onto the seedling mounting table. A rotating body with a locking projection that gives a sliding resistance force to the preliminary seedling that slides under its own weight in the supply state is provided in the preliminary seedling accommodation device, and the action and effect thereof are as follows. .

[Action]

That is, when the preliminary seedlings are supplied by sliding, the locking projections lock the seedlings and impart a resistance force to the slide movement, so that the seedlings are prevented from sliding down vigorously and the falling speed is suppressed. Moreover, since the locking projections are provided on the rotating body, the operation of releasing the locked state of the seedlings is smoothly performed.

[Effect of device]

Therefore, according to the present invention, it is possible to suppress the slide fall speed without damaging the seedlings, and without the inconvenience that the seedlings are caught and obstructing the supply. It became possible to prevent the occurrence of collapse.

〔Example〕

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

FIG. 4 shows a rice transplanter according to the present invention. In this rice transplanter, a seedling planting device (2) is connected to the rear part of the traveling machine body (A) via a link mechanism (1) so as to be able to swing up and down, and
The seedling planting device (2) is provided with a preliminary seedling accommodation device (3).

Support (5) that can freely reciprocate left and right with a bark, and a planting mechanism (6) and a grounding float (5) in which the seedling support table (5) is in a downward inclined posture, and one seedling is cut out from the lower end of the seedling support table (5) and planted in the field. (7) and the like, and a fertilizer application device (8) is attached behind it. Near the lower end of the seedling placing table (5), an endless rotating belt (9) with a locking projection for engaging the placed seedling is used to plant a seedling equivalent amount at the stroke end of the seedling placing table (5). A vertical feed mechanism (10) for feeding the seedlings downward is provided, and at the left and right intermediate positions of the belt (9), a seedling residual amount sensor (11) for arranging the presence or absence of seedlings at that position is provided. There is.

Next, the structure of the preliminary seedling accommodation device (3) will be described. The preliminary seedling accommodation device (3) is arranged above the seedling placing table (5), and is configured so that two mat-shaped preliminary seedlings can be placed in parallel in the vertical direction. In addition, the preliminary seedling accommodation device (3) is positioned above and holds and holds the preliminary seedlings in a posture substantially parallel to the seedling placing table (5) (see FIG. 3),
It is configured to be swingable so as to be switched to a steeply inclined state in which it is tilted downward and to be in a seedling supply state (see FIG. 1) in which the preliminary seedling is slid on the seedling placing table (5) by its own weight.

More specifically, the partition section (12) between the rows of the seedling placing table (5).
A vertical wall (13) is erected from the vertical wall (13), the preliminary seedling accommodation device (3) is pivotally supported around the horizontal axis (X) at the upper end of the vertical wall (13), and the lower end side thereof is It is configured to be held and locked by a locking mechanism (14) that can be locked for placement and released and can be freely held to maintain the above-described placement and holding state.

The locking mechanism (14) has a position for receiving and locking the lower end side of the preliminary seedling accommodation device (3) and a position for releasing the locking and switching to the seedling supply state by the control operation of the electromagnetic solenoid (15). And an electromagnetic solenoid (15), when the seedling remaining amount sensor (11) detects that there is no seedling, that is, when the seedling remaining amount is low, the electromagnetic solenoid (15) is activated. The auxiliary seedling accommodation device (3) is configured to operate in response to this and switch to the seedling supply state.

An endless rotating belt with a locking protrusion (17), which is an example of a rotating body with a locking protrusion that gives a sliding resistance force to a preliminary seedling that slides under its own weight in the seedling supplying state.
8) is provided in the preliminary seedling storage device (3). Second
As shown in the figure, the rotating belt (18) is configured to push and pull an arm (21) attached to the drive shaft (20) of the drive sprocket (19) via a one-way clutch by an electromagnetic solenoid (22). The electromagnetic solenoid (22) is driven by a linkage mechanism (not shown) in synchronization with the rotation of the vertical feed mechanism (10) only when in the seedling supply state, and the preliminary seedling is set. It is configured to feed vertically.

A seedling stopper (23) that prevents the spare seedling on the upper side from sliding down even when the spare seedling on the lower side is supplied to the spare seedling accommodation device (3), a blocking action. It is provided so as to be switchable between a position and a non-acting position. That is, the seedling stopper (23) is pivotally supported by the preliminary seedling storage device (3) around the lower horizontal axis (P) and is locked to the actuator (25a) of the electromagnetic solenoid (25). It is configured to be held in the seedling slide blocking position. or,
A residual quantity sensor (26) for detecting that the residual quantity of the seedling is low is provided near the end of the preliminary seedling accommodation device (3) in the seedling supply direction. When the residual quantity sensor (26) is activated, an electromagnetic solenoid ( 25) is activated to release the position retention of the seedling stopper (23) and set the upper side preliminary seedling in a slide-feedable state. It should be noted that, when replenishing the preliminary seedling, it is configured to manually swing and return via the operation wire (27).

In this way, it is possible to prevent the preliminary seedling from sliding vigorously and colliding with a strong force in the seedling supplying state.

[Another embodiment]

The rotating body with the locking projection may be configured as follows.

As shown in FIG. 5, a cylindrical rotating drum (18) having a large number of locking projections (17) for locking the preliminary seedling projecting on the outer periphery.
Attach the rotating spindle (28) to the brackets (29), (2
9) It is installed rotatably over and has a compression spring (30) between the bracket (29) and the rotating drum (18).
And the rotating drum (1
8) It is configured to give resistance to the rotation of the seedlings that slides.

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]

The drawings show an embodiment of a preliminary seedling supply structure of a rice transplanter according to the present invention. Fig. 1 is a side view of a main part in a seedling supply state, Fig. 2 is a longitudinal rear view of the main part, and Fig. 3 is a seedling holding state. FIG. 4 is a side view of the rear part of the rice transplanter, FIG. 4 is an overall side view of the rice transplanter, and FIG. 5 is a longitudinal sectional rear view of a main part of another embodiment. (3) …… Preliminary seedling storage device, (5) …… Seedling platform, (1
7) …… Locking protrusion, (18) …… Rotating body.

Claims (1)

[Scope of utility model registration request] 1. A preliminary seedling accommodation device (3) is arranged above a seedling placing surface (5) of a tilted seedling placing table (5), and the preliminary seedling accommodation device (3) is The end on the side of the seedling delivery port is in a state where the preliminary seedling is placed and held in a floating posture away from the seedling placement surface of the seedling placing table (5), and the state where the preliminary seedling is placed and held on the side of the seedling delivery port A preliminary seedling supply structure for a rice transplanter, which is configured to be freely swingable by switching between a preliminary seedling in a steeply inclined posture in which the end portion is tilted downward and a state in which a preliminary seedling is moved onto the seedling placing table (5). And a rotary body (18) with a locking projection (17) for imparting a slide resistance force to the preliminary seedling that slides under its own weight in the seedling supply state is provided in the preliminary seedling accommodation device (3). Machine seedling supply structure.