JPH0829019B2 - Pre-seedling storage structure for rice transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] According to the present invention, a spare seedling accommodation device is disposed above a seedling placing table in an inclined posture, and the spare seedling accommodation device holds and holds the reserve seedlings. The seedling placing position and one end of the seedling placing table are configured to be swingable and swingable between a seedling placing position where one end approaches the seedling placing table and a preliminary seedling is slidably fed onto the seedling placing table, and the lower surface side of the auxiliary seedling accommodating device. In the state where the preliminary seedling accommodation device is in the seedling placement position,
The present invention relates to a preliminary seedling accommodating structure for a rice transplanter equipped with a seedling retaining stay for preventing floating of the seedlings placed on the seedling placing table.

[Conventional technology]

In the above-mentioned preliminary seedling accommodation structure, there is a structure having a structure previously filed by the present applicant (Japanese Patent Application No. 63-286299). That is, the lower surface side of the preliminary seedling accommodation device, that is,
A seedling holding stay that acts on the seedlings placed on the seedling placing table is fixedly attached to the surface facing the seedling placing table while the spare seedling holding device is in the seedling placing position, and Only the two positions, the position and the seedling supply position, could be held freely.

[Problems to be Solved by the Invention]

The above-mentioned preliminary seedling supply structure, seedlings on the seedling mounting table are consumed along with the planting work, and when the remaining amount is low, the spare seedling accommodation device is switched to the seedling supplying position to supply the preliminary seedlings onto the seedling mounting table, It enables continuous work for a long time,
Further, the seedling holding stay is configured to prevent the seedlings on the seedling mounting table from being swollen in the middle due to the weight of the seedlings or turning up the ends, thereby preventing a stock stall. .

However, in the above-described conventional structure, for example, when supplementing seedlings from the outside on the seedling placing table, even if the preliminary seedling accommodation device is set at the seedling placing position, the seedling holding stay is placed on the seedling holding stay. Since the seedlings are pressed against each other, there is a drawback that it is difficult to supply seedlings, and there is room for improvement.

 The present invention aims to overcome the above drawbacks.

[Means for solving the problem]

The characteristic configuration of the present invention is, in the preliminary seedling accommodation structure of the rice transplanter described at the beginning, the preliminary seedling accommodation device is integrated with the seedling retaining stay in the seedling retaining position, above the seedling placing position. The point is that a holding mechanism that can hold and release the position is provided at the retracted position that is oscillated.

[Action]

When seedlings are replenished on the seedling mounting table, the seedling holding stay is moved from the predetermined seedling holding position by replenishing the seedlings while the preliminary seedling accommodation device is held in the retracted position by the holding mechanism. Since it is also retracted upward, it does not interfere with seedling supply. After the seedling replenishing work, the preliminary seedling accommodation device is returned to the seedling placing position so that the seedling holding stay is also returned to the predetermined operating position and the switching swing operation is possible.

〔The invention's effect〕

Therefore, according to the present invention, seedling replenishment work on the seedling mounting table can be efficiently performed without hindering the switching swing operation of the preliminary seedling accommodation device and without lowering the seedling holding function of the seedling holding stay. It became possible.

〔Example〕

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

FIG. 10 shows a riding-type rice transplanter according to the present invention. This rice transplanter is configured by connecting a seedling planting device (2) to a rear portion of a riding type traveling machine body through a link mechanism (1) which can be driven up and down.

As shown in FIG. 3, the seedling planting device (2) includes a seedling mount (3) in a backward descending posture, and a planting mechanism (4) disposed below and rearward of the seedling mount (3). And a grounding float (5) and the like, and the seedling table (3) is attached to the planted transmission case (6) also serving as a frame so as to be reciprocally driven left and right with a constant stroke. At the bottom of the plant, there is a protrusion that locks onto the placed seedling to prevent it from sliding down and holds the position when the seedling placing table (3) moves laterally, and at the end of the stroke, extends downward by an amount equivalent to one planting amount. An endless belt type vertical feed mechanism (7) is provided.

The planting mechanism (4) mounts a rotating case (8) that rotates around a horizontal axis on the rear part of the planting transmission case (6) and mounts it while drawing an elliptical locus on both ends of the case (8). A planting claw (9) for cutting out and planting seedlings from the lower end of the planting seedling is attached, and a fertilizer application device (10) is provided above the planting mechanism (4).

A preliminary seedling accommodation device (11) is provided above the seedling placing table (3), and the preliminary seedling accommodation device (11) is located above and has a posture substantially parallel to the seedling placing table (3). The seedling placing position for holding and holding the seedling and the seedling supplying position where the rear end contacts the seedling placing table (3) are configured to be switchable and swingable. That is,
The preliminary seedling accommodation device (11) is swingably supported around the horizontal axis (X ₁ ) in the front upper part, and is locked to the rear lower end of the preliminary seedling accommodation device (11) so that the seedling placement state is maintained. A retaining mechanism (A) is provided for holding and holding the retaining state and releasing the retaining state to drop the preliminary seedling accommodation device (11) under its own weight in the supplied state of the seedlings.

More specifically, as shown in FIG. 3 to FIG. 8, a side wall (13) is provided over a long area in the vertical direction above the partition part (12) between the rows of the seedling stand (3). In addition to standing and fixing, the swinging pivotally supporting part (17) of the preliminary seedling accommodation device (11) is provided on the side wall (13) above the seedling placing table (3), and Side walls on both sides (13), (13)
The rocking pivots (17) and (17) in (1) are configured to stably rock and support. On the other hand, a support frame (18) extending laterally over the entire width is fixedly provided on the lower side edge of the seedling mounting table (3) in the side wall (13), and each side wall of the support frame (18) is fixed. An electromagnetic solenoid (14) is attached and fixed in the middle of (13) via a bracket (19). The bracket (19) includes a spare seedling storage device (11).
A swingable locking member (15) is pivotally supported at a position where the free end side of the plate is placed and locked and a position where the free end side is rocked to release the engaged state. And, the locking member (15) has one end side,
The actuator (14a) of the electromagnetic solenoid (14) projecting sideways is locked and maintained at the locking position, and the actuator (14a) is retracted to cause the weight of the preliminary seedling accommodation device (11) to cause It is configured to be in the release position. The locking member (15) and the electromagnetic solenoid (14) constitute the locking mechanism (A).

The actuator (14a) of the electromagnetic solenoid (14)
As shown in FIG. 9, a seal member (20) is attached to the outer peripheral portion to prevent muddy water from entering the inside of the electromagnetic solenoid (14) from the preliminary seedling through the locking member (15). In addition to the prevention, a shelf (15a) is formed on the upper surface of the pivot to prevent the inflow of muddy water.

The seedling placing table (3) projects upward from the seedling placing surface (3a) of the seedling placing table (3) at the center of the seedling placing mechanism (7) in the lateral direction and at the center position in the vertical feeding direction. A seedling remaining amount sensor (16) is provided which can be switched between a non-detection state and a detection state in which the seedling placement surface (3a) retracts depending on the weight of the seedling. When the remaining seedlings on the seedling placing table (3) are running low and the seedling remaining amount sensor (16) is in a non-detection state,
By operating the electromagnetic solenoid (14), the spare seedling accommodation device (11) is linked by its own weight to switch from the seedling mounting position to the seedling supplying position.

The preliminary seedling accommodation device (11) is formed by connecting a seedling placing plate (11a) and side wall forming members (11b) and (11b) on both left and right sides, and a horizontal axis core is attached to the swinging pivot support (17). The auxiliary seedling storage device (11) is mounted and supported on a support frame (21) that is swingably mounted around (X ₁ ) and is slidably engaged and held only in the direction along the seedling mounting base (3). I am doing it. The locking member (22) attached to the lower surface of the upper end of the preliminary seedling accommodation device (11) contacts the upper end of the support frame (21) and holds the position at a predetermined set position, and is directed rearward and upward. The spare seedling storage device (11) can be pulled out.

In addition, on the lower surface side of the preliminary seedling accommodation device (11), in a state where the preliminary seedling accommodation device (11) is in the seedling placing position, a seedling retainer for preventing floating of the placed seedling on the seedling placing table (3). A stay (23) is attached. More specifically, a pair of left and right seedling pressing stays (23) are supported by rotatably supporting a support shaft (23a) over the upper side portions of the side wall forming members (11b), (11b).
Is swingably attached around the axis of the support shaft (23a). The upper side of the support shaft (23a) of the seedling holding stay (23) is formed in a state of being close to the seedling placing plate (11a), and the lower side is close to the seedling placing base (3) to perform a seedling holding action. It is configured as follows. Further, a contact restraint mechanism (B) is provided which urges the spiral spring (24) to swing in the seedling holding direction and holds the position in a predetermined seedling holding posture. That is, the wing bolts (26) are attached to the left and right central portions of the connecting rod (23b) that connects the upper ends of the left and right seedling pressing stays (23) so that the wing bolts (26) can be screwed and adjusted. The contact restriction mechanism (B) is configured so as to contact the stop member (22) and restrict the contact position against the spring force of the spiral spring (24).

In the vicinity of the swinging fulcrum of the support frame (21), there is provided a position fixing means capable of holding and releasing the support frame (21) at the seedling placement position by operating the operation lever (27).
More specifically, a lateral axis is provided on the inner side surface of the side wall (13).
A substantially V-shaped operation lever (27) which is swingable around (X ₂ ) is pivotally supported, and the rear end of the operation lever (27) swings the support frame (21). A locking projection (28) that engages with the lower surface side of the moving part is formed. This operating lever (2
7) shows that when the support frame (21) is swung forward from the seedling supply position, the engaging projection (28) is abuttingly engaged to move the support frame (21) upward. When the line connecting the engaging protrusion (28) and the swing axis (X ₂ ) crosses the lower surface of the support frame (21) at a right angle, that is, the dead point (DP), Even if the operator releases his / her hand from the operation lever (27), the support frame (21) can be held at the seedling placement position. Thus, the fixing means is constituted by the dead point crossing mechanism.

With this configuration, when a new seedling is replenished with some seedlings remaining on the seedling storage device (11) at the seedling supply position, the device (11) is pulled out backward and upward. Can be smoothly transferred to the seedling mounting table (3).
When setting the seedling placement position again, after operating the operation lever (27) to hold the support frame (21) at the seedling placement position, the spare seedling storage device (11) is set to the normal position. The operating lever (27) may be slid to the release position while being locked by the locking mechanism (A). Then, the seedling automatic supply state can be set by the operation of the electromagnetic solenoid (14).

Then, the preliminary seedling accommodation device (11) can be held and released integrally with the seedling holding stay (23) in the seedling holding position, at a retracted position that is swung above the seedling placing position. The holding mechanism (C) is provided. To elaborate,
As shown in FIGS. 1 and 2, the operation lever (27)
A detent mechanism (29) for holding the seedlings at the dead point (DP) position is provided so that the preliminary seedling accommodation device (11) can be temporarily held at the upper position (the position shown by the phantom line in FIG. 1). There is. In this way, by holding the preliminary seedling accommodation device (11) at the upper position, it is possible to easily replenish the seedlings on the seedling mounting table (3).

[Another embodiment]

As the holding mechanism (C), a dedicated locking type receiving mechanism may be used instead of the one that also serves as the lifting operation fixing means.

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

[Brief description of drawings]

The drawings show an embodiment of a preliminary seedling accommodation structure of a rice transplanter according to the present invention. Fig. 1 is a side view of essential parts, Fig. 2 is a plan view of a detent mechanism, and Fig. 3 is a rice transplanter in a seedling mounting state. Rear cutaway side view, Fig. 4 is a rear cutaway side view of the rice transplanter in the seedling supply state,
5 is a longitudinal rear view of the preliminary seedling accommodation device, FIG. 6 is an exploded perspective view of the preliminary seedling accommodation device, FIG. 7 is a vertical side view of the locking mechanism, and FIG. 8 is a cross-sectional plan view of the locking mechanism. FIG. 9 is a partial sectional view of the electromagnetic solenoid, and FIG. 10 is an overall side view of the rice transplanter. (3) …… Seedling platform, (11) …… Spare seedling storage device, (23)
…… Seedling holding stay, (C) …… Holding mechanism.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yoshiyuki Kojima 64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd.Sakai Works (72) Inventor Hiroshi Okuda 64, Ishizukitamachi, Sakai City, Osaka Sakai Factory

Claims (1)

[Claims] 1. A spare seedling storage device (11) is disposed above a seedling mounting table (3) in an inclined posture, and the spare seedling storage device (11) is
The seedling placing position for holding and holding the spare seedling and the seedling supplying position for slidingly supplying the spare seedling onto the seedling placing table (3) with one end approaching the seedling placing table (3) are switchably swingable. In addition to the construction, the floating seedlings on the seedling placing table (3) are prevented from floating when the auxiliary seedling holding device (11) is located at the seedling placing position on the lower surface side of the auxiliary seedling containing device (11). A preliminary seedling accommodation structure of a rice transplanter to which a seedling retaining stay (23) is attached, wherein the preliminary seedling retaining device (11) is integrated with the seedling retaining stay (23) at the seedling retaining position, A preliminary seedling accommodating structure for a rice transplanter, which is provided with a holding mechanism (C) that can be held and released at a retracted position that is swung above the seedling placement position.