JPH09103146A - Seedling planting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seedling planting apparatus enabling the simplification of structure, having no useless arranging space for a reinforcing member and having improved durability and planting accuracy by attaching a receiving member for receiving and supporting the reverse side of a part extending out to a seedling loading surface side on the reinforcing member in a freely attaching and detaching manner. SOLUTION: A seedling transferring belt mechanism 8 for transferring seedlings toward a seedling taking out port faces to an opening 6B formed on a seedling loading surface of a seedling table 6 for loading seedlings. A reinforcing member 7 crossing the seedling table 6 in the lateral direction is passed through the winding passage of a seedling transferring belt 16 of the seedling transferring belt mechanism 8 and attached on the reverse side of the seedling table 6. A transverse mechanism for driving the seedling table 6 to reciprocally transverse in a lateral direction is linked to the reinforcing member 7, and a receiving member 24, which receives and supports the reverse side of the part extended out to the seedling loading surface side of the seedling transferring belt 16, is attached on the reinforcing member 7 in a freely attaching and detaching manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Field of Industrial Application] The present invention provides a seedling feeding belt for each article forcibly feeding seedlings toward the seedling take-out opening for each row in a state of facing the opening of the seedling placing surface and provided on the seedling placing table. The present invention relates to a seedling planting device.

[0002]

2. Description of the Related Art In this type of seedling planting apparatus, the seedling feeding belt is fed by friction, or a protrusion provided on the belt is bitten into a mat-shaped seedling or the like for feeding. If the roots of the seedlings are hard, the protrusions may not bite well. Further, in recent years, from the need to add a sufficient feeding action to the seedling take-out port, there are those that take a long stretch length of the seedling feeding belt, but in this case, the belt may hang under its own weight, On the contrary, sometimes the belt feeding was not enough. Therefore, the applicant of the present application proposed in Japanese Patent Application No. 3-3124 to provide a guide member for supporting the conveying surface of the seedling feeding belt from the back side and suppressing the slack of the belt.

[0003]

However, in this case, in order to attach the guide member to the seedling mounting table, a dedicated fixture is extended from the pulley shaft of the belt, and the guide member is attached to the fixture. It was Therefore, a dedicated mounting tool is required, which increases the number of parts and complicates the structure. An object of the present invention is to provide a product that can reduce the number of parts and simplify the structure while suppressing loosening of the seedling feeding belt and performing a favorable feeding action.

[0004]

According to a characteristic structure of the present invention, a reinforcing frame is installed laterally over the entire width of the seedling stand so as to penetrate an internal space surrounded by each seedling feeding belt. At the same time, the reinforcing frame is provided with a receiving portion that comes into contact with the feeding path side belt of each seedling feeding belt from the back side, and the function and effect thereof are as follows.

[0005]

That is, from the place where other parts (for example, a seedling remaining amount sensor that moves up and down with respect to the seedling mounting surface) are provided at the installation site of the seedling feeding belt, the seedling mounting table is laterally oriented over the entire width. The reinforcement frame installed in a posture was installed at a position apart from the installation position of the seedling feeding belt, but the installation position of the reinforcement frame was found in the internal space surrounded by the seedling feeding belt, and the reinforcement frame was fed to each seedling feeding By changing the arrangement so as to pass through the inner space surrounded by the belt, a receiving portion is formed in the reinforcing frame, and the receiving portion receives the belt on the feed path side and suppresses slack. Therefore, the reinforcing frame can also be used as a frame to which a member for preventing loosening of the seedling feeding belt is attached.

[0006]

As a result, there is no need for a dedicated mounting member for mounting a member for preventing loosening of the seedling feeding belt,
The number of parts has been reduced, and the structure has been simplified.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a feed case 2 which receives power from the machine is connected to a quadruple link 1 provided at the rear end of the machine (not shown), and A horizontal frame 3 is installed at the lower end, a plurality of planting cases 4 are extended rearward from the horizontal frame 3, and the front end of each planting case 4 is connected by a transmission shaft that is installed in parallel with the horizontal frame 3. Then, the transmission structure to the planting case 4 is configured, and the seedling planting mechanism 5 is provided at the rear end of the planting case 4, and the planting operation of the seedling planting mechanism 5 is performed above the planting case 4. The seedling mounting table 6 that moves back and forth with a constant stroke is provided on the left and right sides to configure a seedling planting device mounted on the riding type rice transplanter.

Next, the reciprocating structure of the seedling table 6 will be described. As shown in FIG. 4, a laterally-strengthened reinforcing frame 7 is laid across the rear surface of the seedling mounting table 6 to form a seedling mounting table 6.
Reinforce the assembled state of. That is, the seedling mounting table 6 is provided with a wall 6A for partitioning the mat-shaped seedlings for each row, and the wall 6A divides the seedling mounting table portion for each row. Therefore, the state after assembly can be strengthened by the reinforcing frame 7. As shown in FIG. 2, the reinforcing frame 7 is formed in a cross shape in cross section, and is provided so as to penetrate an internal space surrounded by a seedling feeding belt mechanism 8 described later. The first bracket 9 extends from the reinforcing frame 7 toward the front side of the machine body, and the lateral feed mechanism A of the seedling placing table 6 is connected to the first bracket 9. In constructing the lateral feed mechanism A, as shown in FIG. 3, the spiral shaft 10 is laterally extended from the feed case 2 and is externally fitted to the spiral shaft 10 to move laterally in the axial direction of the spiral shaft. The movable body 11 is provided, and the top member 12 that engages with the spiral groove of the spiral shaft 10 is provided inside the movable body 11.
By rotating the spiral shaft 10 around its axis, the top member 12 is rotated.
The moving body 11 is configured to be laterally movable integrally with the above. The moving body 11 and the first bracket 9 are connected via a connecting member 13. With the above-described structure, the drive mechanism in the feed case 2 rotates the spiral shaft 10 around its axis to reciprocate the moving body 11 with a constant stroke and laterally move the seedling mounting table 6.

The drive structure of the seedling feeding belt mechanism 8 will be described. As shown in FIG. 2, a belt 16 with a protrusion is wound around a drive pulley 14 located below and a driven pulley 15 located above to form a seedling feeding belt mechanism 8, and the seedling feeding belt mechanism 8 is also provided. Two are installed side by side for each article. The driven arm 17 is attached to the shaft of the drive pulley 14 via a one-way clutch and a return spring, and the drive arms 19 and 19 which constantly rotate are attached to the rotary shaft 18 projecting from the feed case 2 at a predetermined interval. When the driving arm 19 and the driven arm 17 are in phase with each other at the reciprocating end of the table 6 and the driven arm 17 is driven and rotated by the driving arm 19, the belt 16 with protrusions is rotationally moved by a certain length, and the mat-shaped seedling is produced. To the seedling take-out opening a. By connecting the driven arm 17 and a feed amount adjusting lever (not shown) with a wire 21, and adjusting the rotation of the driven arm 17 to change the initial position where the driving arm 19 is first contacted and driven. The rotation angle of the driven arm 17 is changed so that the amount of movement of the protruding belt 16 can be adjusted. The receiver 22 for the outer side of the wire 21 is attached to the above-mentioned reinforcing frame 7 so as to effectively utilize the reinforcing frame 7, and the second bracket 23 is attached and used as another operation wire receiver.

As shown in FIG. 1, the reinforcing frame 7 is formed of an aluminum mold material, and a resin-made receiving plate 24 is attached to the reinforcing frame 7 in a snap-fit manner so that it can be elastically mounted. The protrusion 16 is brought into contact with the back surface of the belt on the feed path side to prevent the belt from loosening.
In addition, in the figure, 25 is rocked along the seedling placing surface of the seedling placing table 6
It is a seedling remaining amount sensor that can freely move in and out of A.

[Other Embodiment] As the structure of the receiving plate 24, as shown in FIG. 5A, an elastically deformable engaging portion is provided which is fitted only in one shoulder portion of the reinforcing frame 7. It may be one. As the configuration of the receiving plate 24, as shown in FIG. 5B, an elastically deformable engaging portion that fits into only one shoulder portion of the reinforcing frame 7 is separately provided, and the engaging portion is provided. The portion and the receiving plate 24 may be configured by leaf springs. The receiving plate 24 may be formed integrally with the reinforcing frame 7. The above forms are collectively referred to as a receiving portion formed in the reinforcing frame 7.

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

[Brief description of the drawings]

FIG. 1 is a side view of a seedling planting apparatus.

FIG. 2 is a vertical sectional side view showing a mounting state of a receiving plate.

FIG. 3 is a cross-sectional view showing a state in which the seedling table and the lateral feed mechanism are linked.

FIG. 4 is a plan view showing a seedling feeding mechanism.

[Fig. 5] (a) Vertical sectional side view showing another embodiment of the receiving plate (b) Vertical sectional side view showing another embodiment of the receiving plate

[Explanation of symbols]

 6 Seedling platform 7 Reinforcement frame 8 Seedling feeding belt mechanism 16 Belt 24 Receiving part a Seedling outlet

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[Procedure amendment]

[Submission date] November 13, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Seedling planting device

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction of a seedling rest of a seedling planting device provided in a rice transplanter.

[0002]

2. Description of the Related Art In a seedling planting apparatus, an opening is formed in a seedling mounting surface of a seedling nest on which seedlings are placed, and a seedling feeding belt mechanism is arranged so as to face the opening. There is a configuration in which a seedling feed belt of the mechanism is applied to the back surface of the seedling and the seedling feed belt is rotated to drive the seedling toward a seedling take-out opening. By applying the seedling feed belt over a long area on the back of the seedling,
The seedlings placed on the seedling mounting table can be reliably sent to the seedling take-out port by the seedling feed belt.

[0003]

However, when the seedling feeding belt mechanism as described above is provided on the seedling mounting base, a relatively large opening is formed on the seedling mounting surface so that the seedling feeding belt mechanism faces the seedling mounting surface. Therefore, the strength may be reduced near the opening of the seedling mounting surface in the seedling mounting table. Also, if the seedling feed belt is arranged so as to be applied over a long range of the back surface of the seedling, the portion of the seedling feed belt protruding toward the seedling placing side hangs down due to its own weight or the like and separates from the back surface of the seedling. In some cases, the seedlings cannot be reliably sent to the outlet. The present invention provides a seedling planting apparatus provided with a seedling feeding belt mechanism in a seedling rest, which has a structure capable of preventing a decrease in strength near an opening of a seedling resting surface in the seedling rest and a downward drip of the seedling feeding belt. It is intended to be.

[0004]

A feature of the present invention resides in the following structure in a seedling planting apparatus. The seedling feed belt mechanism that feeds the seedlings toward the seedling removal port faces the opening formed on the seedling rest surface of the seedling rest on which the seedlings are placed. Through the winding path of the seedling feed belt of the feed belt mechanism, attached to the back side of the seedling nest, the transverse feed mechanism for driving the seedling nest reciprocatingly to the left and right is connected to the reinforcing member, and the seedling feed belt is connected to the seedling feed belt. A receiving member for receiving and supporting the back side of the portion protruding from the mounting surface is detachably provided on the reinforcing member.

[0005]

[I] When the reinforcing member extending in the left-right direction of the seedling stand is attached to the back side of the seedling stand through the winding path of the seedling feeder belt as in the feature of claim 1, the seedling feeder belt mechanism is exposed. The reinforcing member is arranged so as to cross the opening of the seedling placing surface, and the vicinity of the opening of the seedling placing surface in the seedling placing table is reinforced by the reinforcing member. In this case, since the reinforcing member is attached through the winding path of the seedling feeding belt,
The reinforcing member does not largely come out of the range of the existing seedling feeding belt mechanism, and the space for disposing the reinforcing member is not wasted.

[II] In the seedling planting apparatus, generally, a seedling feeding belt mechanism provided with a seedling feeding belt, a lateral feeding mechanism for laterally driving the seedling placing table to the left and right, and a driving mechanism for planting claws are used. The seedling planting device is provided at a relatively low position on the back side of the stand so that the seedling planting device is compact as a whole and the center of gravity of the seedling planting device is low.

In this case, if the portion of the seedling rest above the seedling feeding belt and the transverse feed mechanism at a relatively low position on the back side of the seedling rest are connected via a connecting member, The connecting member becomes long. When the connecting member becomes long as described above, the power of the reciprocating lateral feeding by the traversing mechanism is transmitted to the seedling rest, and the connecting member bends. May not be able to be transmitted reliably. Conversely, when connecting the portion of the seedling rest above the seedling feed belt and the lateral feed mechanism, if the connecting member is to be shortened, the position of the lateral feed mechanism is lifted upward, It is necessary to configure the lateral feed mechanism to approach the portion of the seedling platform above the seedling feed belt.
However, disposing the lateral feed mechanism above the seedling feed belt mechanism and the drive mechanism of the planting claw is contrary to the overall compactness of the seedling planting device and the low center of gravity of the seedling planting device. become.

According to the first aspect of the present invention, since the reinforcing member is attached to the back side of the seedling rest through the winding path of the seedling feeding belt, the reinforcing member is located near the lateral feeding mechanism. Thus, when the reinforcing member and the transverse feed mechanism are connected via the connecting member, the connecting member can be configured to be short. Therefore, the power of the reciprocating transverse feed by the transverse feed mechanism is reliably transmitted to the reinforcing member (seedling rest) without bending the connecting member.

[III] As described in the feature of claim 1, the reinforcing member is provided with a receiving member for receiving and supporting the back side of the portion of the seedling feeding belt which is on the seedling placing surface side. The portion protruding to the surface side is not received and supported by the receiving member and does not hang downward.

In this case, when the reinforcing member is attached to the back side of the seedling nest through the winding path of the seedling feed belt, the seedling feed belt mechanism faces as described in the above item [I]. The reinforcing member crosses the opening of the seedling mounting surface, and the reinforcing member is located behind the portion of the seedling feed belt that is exposed to the seedling mounting surface. This allows
By providing the above-described receiving member on the reinforcing member, the portion of the seedling feed belt that is exposed to the seedling resting surface can be easily received and supported, and is dedicated to attaching the receiving member to the seedling rest. No connecting member is required.

[IV] When the receiving member as described above is provided, the receiving member is vertically long so that the portion of the seedling feeding belt that is exposed to the seedling surface can be received and supported over a long range. Better to configure. In this case, if the receiving member is formed integrally with the horizontally long reinforcing member and the receiving member is configured to be longer vertically, the whole of the reinforcing member and the receiving member becomes fish-bone-shaped. It becomes an impossible configuration in terms of sex.

According to the first aspect of the present invention, since the receiving member is formed separately from the reinforcing member, the receiving member can be vertically elongated without being affected by the horizontally long reinforcing member. . Furthermore, since the receiving member is configured to be detachable from the reinforcing member, when the receiving member is worn, etc.,
The receiving member can be easily replaced.

[0013]

According to the first aspect of the present invention, in the seedling planting apparatus provided with the seedling feeding belt mechanism on the seedling rest, the reinforcing member can reinforce the vicinity of the opening of the seedling rest surface in the seedling rest. Thus, the durability of the seedling rest could be improved. In this case, since the reinforcing member is attached by effectively utilizing the winding path of the seedling feeding belt, there is no waste in the space for disposing the reinforcing member, which is advantageous in terms of making the seedling rest compact.

According to the first aspect of the present invention, the power of the reciprocating transverse feed by the transverse feed mechanism is applied to the reinforcing member (seedling bed) without bending the connecting member connecting the reinforcing member and the transverse feed mechanism. Since it is transmitted reliably, the planting accuracy of the seedlings can be improved by the reliable reciprocating lateral feed of the seedling mounting table.

According to the first aspect of the present invention, the portion of the seedling feed belt protruding toward the seedling placing side is not received and supported by the receiving member and does not hang down, so that the seedling feed belt is used for the seedling take-out opening. Of seedlings,
The slipping can be performed without slips, and the planting accuracy of the seedlings can be improved. In this case, by providing the above-mentioned reinforcing member with the receiving member, the portion of the seedling feed belt that is exposed on the seedling placing surface side can be easily received and supported. This also eliminates the need for a dedicated connecting member, which is advantageous in terms of simplifying the structure.

According to the first aspect of the present invention, when a separate receiving member is configured to be detachable from the reinforcing member, the receiving member is configured to be vertically long without being affected by the horizontally long reinforcing member. Therefore, productivity is improved particularly when the receiving member is configured to be vertically long. Further, since the receiving member can be easily replaced, the workability of the replacement is also improved.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a feed case 2 receiving power from the machine is connected to a quadruple link 1 provided at the rear end of the machine (not shown). The horizontal frame 3 is connected to the lower end, and a plurality of planting cases 4 extend rearward from the horizontal frame 3.
The front end of the planting case 4 is connected by a transmission shaft (not shown) installed in parallel with the horizontal frame 3 to form a transmission structure to the planting case 4, and the rear end of the planting case 4 A seedling rest 6 is provided above and above the planting case 4, and the seedling rest 6 is reciprocally traversed by a constant stroke to the left and right in conjunction with the planting operation of the seedling planting mechanism 5. It constitutes a seedling planting device mounted on the machine.

Next, the structure of the reciprocating lateral feed of the seedling placing table 6 will be described. As shown in FIG. 3 and FIG.
A laterally extending reinforcing frame 7 (corresponding to a reinforcing member) is attached over the entire width of the rear side of the base, and the seedling rest 6 is reinforced in an assembled state. The seedling rest 6 is provided with a partition wall 6A for separating mat-shaped seedlings for each planting strip, and is divided into the portions of the seedling rest 6 (seedling resting surface) for each planting strip by the partition wall 6A. The frame 7 reinforces the seedling stand 6 in the assembled state.

As shown in FIGS. 2 and 3, the reinforcing frame 7 is formed in a T-shaped cross section, and the reinforcing frame 7 is arranged through a winding path of a seedling feed belt 16 of a seedling feed belt mechanism 8 described later. doing. The first bracket 9 extends from the reinforcing frame 7 toward the front of the fuselage, and the lateral feed mechanism A of the seedling rest 6 is connected to the first bracket 9.

As shown in FIGS. 2 and 3, the traverse feed mechanism A extends the helical shaft 10 from the feed case 2 in a horizontal direction, and is externally fitted to the helical shaft 10 so as to extend in the axial direction of the helical shaft 10. A movable body 11 is provided, and a top member 12 that meshes with a spiral groove of the spiral shaft 10 is provided inside the movable body 11,
The moving body 1 is integrated with the top member 12 by the rotation of the spiral shaft 10.
1 is configured to be able to be driven in the horizontal direction. Moving object 11 and first
The bracket 9 is connected via a connecting member 13. With the above configuration, the helical shaft 10 is driven to rotate by the driving mechanism (not shown) in the feed case 2, and the moving body 11 is reciprocated at a constant stroke, so that the seedling rest 6 is reciprocated laterally to the left and right.

Next, the seedling feed belt mechanism 8 will be described. As shown in FIGS. 2, 3, and 4, a seedling feed belt mechanism 8 is configured by winding a seedling feed belt 16 having projections over a drive pulley 14 located below and a driven pulley 15 located above. The seedling feed belt mechanism 8 faces each of the two openings 6B formed on the seedling mounting surface. A driven arm 17 is mounted on a shaft of the driving pulley 14 via a one-way clutch (not shown) and a return spring (not shown). The arms 19 are attached at predetermined intervals. As a result, the phases of the drive arm 19 and the driven arm 17 coincide with each other at the moving end of the reciprocating lateral feed of the seedling placing table 6, the drive arm 19 drives the driven arm 17, and the seedling feed belt 16 is moved by a certain length. It rotates and sends the seedlings toward the seedling removal port a.

As shown in FIG. 2, the driven arm 17 and a feeding amount adjusting lever (not shown) are connected by a wire 21, and the angle of the driven arm 17 is changed so that the driving arm 1 is moved.
By changing the initial position of the driven arm 17 by changing the initial position of the driven arm 17 in first contact with the driven member 9, the amount of rotation of the seedling feed belt 16 can be adjusted. The outer support member 22 of the wire 21 is attached to the reinforcement frame 7 to effectively use the reinforcement frame 7, and the second bracket 23 is attached to the reinforcement frame 7 to be used also as a receiver for other operation wires. doing.

As shown in FIGS. 1, 2, 3, and 4, the reinforcing frame 7 is formed of an aluminum mold, and a separate receiving plate 24 (corresponding to a receiving member) made of resin is snapped to the reinforcing frame 7. It is fitted and elastically detachably attached,
The back side of the portion of the seedling feeding belt 16 that is exposed to the seedling surface is received and supported by the receiving plate 24 to prevent the seedling feeding belt 16 from hanging down. A seedling remaining amount sensor 25 is provided which swings along the seedling placing surface of the seedling placing stand 6 and is capable of moving back and forth with respect to the partition wall 6A.

[Other Embodiment] As shown in FIG. 5A, the receiving plate 24 may be provided with an elastically deformable engaging portion that fits into only one shoulder of the reinforcing frame 7. . As shown in FIG. 5B, an elastically deformable engaging portion that fits into only one shoulder of the reinforcing frame 7 is separately provided on the receiving plate 24, and the engaging portion and the receiving plate 24 are formed by a leaf spring. May be configured. The above and embodiments are collectively referred to as a receiving plate 24 (receiving member) provided on the reinforcing frame 7 (reinforcing member).

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

[Brief description of the drawings]

FIG. 1 is a side view of a seedling planting apparatus.

FIG. 2 is a vertical side view of the vicinity of a receiving plate, a seedling feed belt mechanism, and a horizontal feed mechanism.

FIG. 3 is a cross-sectional plan view of the vicinity of a receiving plate, a seedling feed belt mechanism, and a lateral feed mechanism.

FIG. 4 is a front view of a seedling placing surface of a seedling placing stand and a seedling feed belt mechanism.

FIG. 5 is a longitudinal sectional side view showing another embodiment of the receiving plate.

[Explanation of symbols] 6 Seedling support 6B Opening of seedling support 7 Reinforcing member 8 Seedling feeding belt mechanism 16 Seedling feeding belt 24 Receiving member A Horizontal feeding mechanism a Seedling outlet

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] Figure 3

[Correction method] Change

[Correction contents]

[Figure 3]

[Procedure 3]

[Document name to be amended] Drawing

[Correction target item name] Fig. 4

[Correction method] Change

[Correction contents]

FIG. 4

Claims (1)

[Claims] A seedling feed belt mechanism (8) for feeding seedlings toward a seedling removal opening (a) through an opening (6B) formed in a seedling mounting surface of a seedling mounting base (6) on which seedlings are placed. And a reinforcing member (7) extending in the left-right direction of the seedling rest (6).
With the seedling feed belt (1) of the seedling feed belt mechanism (8).
The traversing mechanism (A), which is attached to the back side of the seedling rest (6) through the winding path of (6) and drives the seedling rest (6) reciprocally laterally to the left and right, with the reinforcing member (7) And a receiving member (24) for receiving and supporting the rear side of a portion of the seedling feed belt (16) that is exposed to the seedling surface side.
Is mounted on the reinforcing member (7) in a detachable manner.