JPH088807B2 - Seedling transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a seedling transplanter for planting eg strawberries,
Specifically, the crop seedlings placed vertically with the roots on the seedling placement surface are sent out toward the seedling take-out opening by a vertical feed mechanism that acts on the roots, and the crop seedlings were positioned at the seedling take-out opening. The present invention relates to a seedling transplanting machine provided with a planting mechanism for taking out the top crop seedling with a planting claw and planting it on the field.

[Conventional technology]

In this kind of seedling transplanting machine, conventionally, a belt-type vertical feeding mechanism was applied to the root of a crop seedling and fed out toward the seedling take-out port (for example, Japanese Patent Application No. 1-23387).

[Problems to be Solved by the Invention]

However, in this case, the driving force of the vertical feeding mechanism acts only on the root portion, so that the tip of the stem is delayed, and there is a case where the tip surface floats from the belt surface during feeding. For this reason, in the case of root-washing seedlings, the floating seedlings sometimes fell sideways on the seedling placement surface by getting into the space between the crop seedling groups arranged in a row toward the seedling take-out port.

Therefore, a method of pushing the root portion of the seedling by providing a protrusion on the belt surface is also conceivable, but in this case also, since the working position of the protrusion is only the root portion, there is a seedling that floats away from this protrusion, and only the root portion is present. There was a limit to the form in which the moving force was given to the feeding.

The object of the present invention is to improve the feeding of crop seedlings toward the seedling take-out port by adding a new mechanism.
The point is to provide something that can be done reliably.

[Means for solving the problem]

A characteristic configuration according to the present invention is that the vertical feeding mechanism is provided with a pusher for abutting at least a stem portion of a crop seedling group fed toward a seedling take-out port and moving it toward a lower side in a feeding direction. , Its effects are as follows.

[Action]

In other words, by exerting a vertical feed mechanism on the root part and pressing the stem part with a pushing tool, it is possible to give the stem part and the root part an equal movement force, so that the state of the desired posture placed on the seedling placing surface The seedlings can be delivered to the seedling take-out opening while maintaining the above.

〔The invention's effect〕

Therefore, it is less likely that it will float up and fall sideways on the seedling placing surface during feeding, compared to the past, and the posture at the seedling take-out port is maintained in the desired vertical posture.
The trouble of taking out by the planting claws is reduced.

Further, as shown in FIG. 1 in particular, when the pushing tool is actuated from the tail end of the root washing crop seedling group, the crop seedling groups can be brought into close contact with each other, and the frictional contact forces of the crop seedlings cause mutual contact. It is possible to suppress the surface of the seedling from rising.

〔Example〕

The seedling planting device (A) for strawberries which is attached to the rear end of the traveling machine body (figure body) via the elevating link mechanism (1) will be described. As shown in FIG. 1, this seedling planting device (A) is
A seedling stand (2) that reciprocally moves laterally with a constant stroke, a feed case (3) that receives power transmission from the traveling machine body (not shown) side, and a plurality of pieces that extend rearward from the feed case (3). The planting case (4), the planting arm (5) as a planting mechanism pivotally supported on both lateral sides of the planting case (4), and the tip of the planting case (5) The planting claw (6) and the leveling float (7) arranged below the planting case (4).

Next, the structure of the seedling stand (2) will be described. First
As shown in FIG. 5 and FIG. 5, this seedling stand (2) is divided into a plurality of places corresponding to the number of planting rows, and each row stores a plurality of rows of crop seedling rows. For this crop seedling,
A plurality of first partition walls (8) made of a resin plate for partitioning adjacent seedling groups in each vertical row are arranged in parallel, and the plurality of partition walls (8) are arranged.
Is a round bar-shaped frame (9A) that laterally penetrates the upper end and the lower end of the crop seedling at the upper end in the feeding direction.
(9B) is supported by a round bar frame (9A) that laterally penetrates only the upper end of the crop seedling feeding direction lower side end, and the round bar frame (9A), (9B) The insertion part is bulged laterally to form a gap setting part (8a) with the adjacent first partition wall (8). These round bar-shaped frames (9A) and (9B) are cantilevered to a partition wall (8A) at one end, and the other first partition wall (8) can be inserted and assembled from its free end. . Then, attach the first partition wall (8B) at the other end to the round bar-shaped frame (9
By assembling and fixing to the free ends of A) and (9B), a plurality of first partition walls (8) for one planting can be configured as a unit, and these units can be attached to the seedling stand (2). Can be installed and removed. These first partition walls (8) are installed at a certain height above the seedling surface so that they act on the upper part of the stem portion of the stored crop seedlings. Seedling scoop board at the position corresponding to the lower edge of (21)
Are supported by the first partition walls (8A) and (8B) at both ends. The crop seedlings (a) separated from the mother stock are stored vertically in a line between the adjacent partition walls (8) and (8), and the roots of the stored crop seedlings (a) are attached to the seedling squeeze board (21). ), The operator puts the seedling scoop board (21) and the first partition walls (8), (8) integrally on the seedling stand (2), and the seedling scoop board (21) is placed on the seedling scoop board (21). It can be planted by pulling it out above the stand (2). In this case, as shown in FIG. 5 (a), engaging fittings (19) are provided on both outer side surfaces of the first partition walls (8A) and (8B) located at both ends, and seedlings are also provided. The engaged metal fittings (31) are fixed to the stand (2), and the first partition walls (8A) and (8B) and the crop seedling group are integrally mounted on the seedling stand (2), and The fitting (19) is inserted and fitted into the engaging groove (31a) of the engaged fitting (31), and the first partition walls (8A) and (8B) can be firmly attached to the seedling stand (2). A belt type vertical feed mechanism (10) for feeding the crop seedling (a) toward the seedling take-out port (b) is provided below the seedling scoop plate (21). The belt (10a) extends from the seedling stand (2) to the idle wheel (11) at the upper end and the drive wheel (12) at the lower end.
Is constructed and constructed.

Next, the horizontal movement structure of the vertical feed mechanism (10) and the seedling stand (2) will be described. As shown in FIGS. 1 and 4, the lateral feed drive shaft (13) of the seedling stand (2) is supported on the feed case (3) and protrudes left and right from the feed case (3). A support arm (14) is fixed to the left and right ends of the lateral feed drive shaft (13), and the left and right support arms (14) and (14) are connected by a joint rod (15) parallel to the lateral feed drive shaft (13). They are connected together. A first transmission shaft (16) is concentrically fitted to the portion of the lateral feed drive shaft (13) located in the feed case (3), and the first transmission shaft (16) is fitted to the first transmission shaft (16). A top member (not shown) is provided on the inner surface, and a spiral groove (13a) engaging with the top member is provided on the outer peripheral surface of the transverse feed drive shaft (13), and the first transmission shaft (1
By the rotation of 6) around its own axis, the lateral feed drive shaft (13) moves in the axial direction to laterally feed the seedling stand (2). An input shaft (23), which will be described later, is supported in parallel with the first transmission shaft (16), and a drive rotary arm (27) for longitudinal feed is provided at the outer end of the input shaft (23), while lateral feed is provided. A drive shaft (18) with a driven arm (17) that moves integrally with the mechanism and that activates the vertical feed mechanism (10) by contact with the drive rotation arm (27) at the end of the horizontal feed stroke is installed. . The vertical feed drive shaft (18) and the drive wheel (12) of the belt (10a) are connected by an interlocking arm (20) to rotate the drive wheel (12).
A one-way clutch (22) is provided between the interlocking arm (20) and the drive wheel (12), and a return spring (not shown) for returning the interlocking arm (20) to the drive reference position is provided.

On the other hand, as shown in FIG. 4, the feed shaft (3) is provided with the input shaft (23) which receives power transmission from the machine-side motive portion, and also relays power transmission to each planting case. A shaft (24) is provided, and the input shaft (23) and the relay shaft (24) are configured to be transmittable via a chain transmission mechanism (25), and the input shaft (23) and the first transmission shaft ( 16) and 16) can be transmitted via a gear transmission mechanism (26). Therefore, the vertical feed belt (10a) is intermittently driven by a predetermined amount when the seedling stand (2) reaches the end of the lateral movement stroke.

In addition, (28) in FIG. 1 operates prior to the operation of the planting claw (6), and holds the leading crop seedling (a) delivered near the seedling take-out opening (b), The seedling separating tool (28) is pushed down to the take-out port (b).

As shown in FIG. 5, the first partition wall (8) is extended to above the seedling take-out port (b), and the tip of the first partition wall (8) receives the leading crop seedling (a) and has a planting claw ( When the planting operation according to 6) is performed, a plate-like receiving member (29) which allows the planting movement of the leading crop seedling (a) is provided, and the plate-like receiving member (29) is provided in the first partition wall (8). ) Has been extended in a cantilever form.

The action end position of the vertical feed mechanism (10) is set in front of the seedling take-out port (b), and the vertical feed is performed between the action end position of the vertical feed mechanism (10) and the seedling take-out port (b). A second partition wall (30) is provided on the root portion of the crop seedling (a) sent out from the mechanism (10) so as to laterally act and guide it.

Next, the vertical feeding mechanism (10) abuts the stem portion of the crop seedling (a) from the end of the crop seedling (a) group sent toward the seedling take-out opening (b) and forcibly moves it to the lower side in the feeding direction. The push tool (32) will be described. As shown in FIGS. 1 and 3, the pusher (32) is provided with the vertical feed mechanism (1).
(0) belt (10a) has a protrusion (10
The plate-like lower retainer (33) which is inserted between b) and moves integrally with the belt (10a) and acts on the root part of the crop seedling (a) group and the stem part close to the root part, and this plate-like lower part. Left and right support rods (34) for suspending and supporting the presser foot (33) from both left and right sides, and a horizontal plate-like presser foot (35) for connecting the upper ends of the left and right support rods (34), (34). The plate-like upper presser member (35) is bent at its left and right ends, and the bent portions are engaged with the upper ends of the left and right first partition walls (8A) and (8B) to move in the vertical direction. When the movement is regulated, the crop seedling group (a) is forcibly moved toward the lower side in the feeding direction by receiving the driving force of the belt (10a). Then, the plate-like lower presser tool (33) pushes the root part and the stem part close to the root part, and the plate-like upper presser tool (35) pushes near the tip of the crop seedling (a) to vertically move the crop seedling (a). While keeping the posture, it is fed to the outlet (b). Therefore, it is possible to prevent row disturbance such as lateral fall of the crop seedling (a) when it is fed toward the seedling take-out port (b).

[Other Embodiments] As shown in FIG. 6, only the plate-shaped upper pressing member (35) is provided as the pressing member (32), and the crop seedling (a) is fixed by the plate-shaped upper pressing member (35). While pushing the tip of the stem,
The root of the crop seedling (a) may be pushed by the belt protrusion of the vertical feed mechanism (10). In this case, the plate-like upper pressing member (35) is attached to the wire winding mechanism (3
The drive system of the vertical feed mechanism (10) and the wire winding mechanism (3)
6) is linked with a link mechanism (37). Therefore, the plate-like upper pressing member (35) operates in synchronization with the vertical feed.

As the pressing tool (32), the plate-like upper pressing tool (35) is moved by its own weight by utilizing the inclination of the seedling stand (2) to push the crop seedling (a). May be.

The seedling transplanter can be used for root washing seedlings and mat seedlings other than straw grass.

The pusher (32) may be of a piston type and operated by an actuator such as a cylinder.

The plate-shaped lower presser (33) is attached to the left and right support rods (34)
It may be configured to be able to move up and down.

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 seedling transplanting machine according to the present invention, FIG. 1 is an overall side view, FIG. 2 is a perspective view of a pusher, and FIG. 3 is a front view showing a mounting state of the pusher, and FIG. Is a cross-sectional view showing a vertical feed and horizontal feed drive mechanism, FIG. 5 (a) shows preparation before mounting on a seedling stand, and (b) is a perspective view showing a state of being mounted on a seedling stand, FIG. The figure is a side view showing another embodiment of the pusher. (6) …… Planting claw, (10) …… Longitudinal feed mechanism, (32) ……
Pushing device, (a) ... crop seedling, (b) ... seedling take-out port.

Claims (1)

[Claims] 1. A crop seedling (a) placed vertically on a seedling surface with its root part facing downward is directed to a seedling take-out port (b) by a vertical feed mechanism (10) acting on the root part. A seedling transplanting machine provided with a planting mechanism for sending out the first crop seedling (a) located at the seedling take-out port (b) by the planting claws (6) and planting it on the surface of the field. A pusher (32) for contacting at least the stem portion of the crop seedling group sent to the seedling take-out opening (b) by the vertical feeding mechanism (10) and moving it toward the lower side in the feeding direction. A seedling transplanter.