JP2001128521A - Seedling stand for rice planting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seedling stand for a rice planting machine capable of well sending out a roll seedling mat irrelevantly to its diameter. SOLUTION: This stand provides a supplemental carrying device for sending out the seedling mat on a seedling stand formed to be able to support the rolled seedling mat.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling mounting table of a rice transplanter which can support a seedling mat wound in a roll.

[0002]

2. Description of the Related Art Conventionally, a roll-shaped seedling mat formed by winding a long seedling mat in a belt shape can be arranged on a seedling table arranged in a slanting posture of a front height and a low height, and can be fed out. A rice transplanter configured to be is known. Such a roll-shaped seedling mat comes into contact with the vertical transport belt of the vertical transport device provided at the lower part of the seedling mounting table by its own weight, and is intermittently sent to an outlet for the seedlings scraped off by the planting claws. It has become.

[0003]

However, as the roll diameter of the rolled seedling mat is reduced by the planting operation, the weight of the seedling mat becomes lighter, and the seedling mat does not come into good contact with the vertical transport belt. There was a problem that a strip that could not send the seedling mat properly occurred. Therefore, the present invention
It is an object of the present invention to obtain a seedling mounting table of a rice transplanter that can send out a seedling mat suitably regardless of the diameter of the rolled seedling mat.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides the following rice seedling mounting table for rice transplanters. In other words, the present invention is a seedling mounting table for a rice transplanter, wherein an auxiliary transport device for sending out a seedling mat is provided on a seedling mounting table configured to support a seedling mat wound in a roll shape. The auxiliary transport device is characterized in that it is configured to rotate for each strip. Further, the auxiliary transport device is configured such that a member that abuts on the seedling mat is forcibly rotated, and a support shaft that supports the auxiliary transport device is configured to rotate the member that abuts on the seedling mat. It is characterized by the following. Further, the member that comes into contact with the seedling mat rotates in synchronization with the vertical transport belt of the vertical transport device, and the feed amount is the same as the feed amount of the vertical transport belt.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below based on examples shown in the drawings. FIG. 1 is a schematic side view of a riding rice transplanter. First, the entire riding rice transplanter will be described. (1) is a traveling vehicle body on which an operator rides, and a transmission case (4) is provided at a rear portion of a vehicle body frame (3) on which an engine (2) is mounted, and both front sides of the transmission case (4) are provided. The front paddle traveling wheel (6) is supported via a front axle case (5), and the paddy traveling rear wheel (8) is supported via a rear axle case (7) on both rear sides of the transmission case (4). Have been. Further, spare seedling mounts (10) are attached to both sides of the hood (9) covering the engine (2) and the like, and the transmission case (4) and the like are covered by a body cover (12) having a step (11). Have been. A driver's seat (13) is mounted on the upper part of the vehicle body cover (12), and a steering handle (14) is provided in front of the driver's seat (13). In addition, (15) is a clutch pedal, and (16) is a fertilizer.

[0006] (17) is, for example, a seedling table (2
0) and a planting section comprising a plurality of planting claws (29), etc., and a rectangular plate-like forward-tilt type seedling mounting table (20) having a front height and a low height.
The center and left and right planting transmission cases (2) are connected via a lower guide rail (18) and an upper guide rail (19).
6) is slidably supported to the left and right. Vertical ribs (21) are arranged at predetermined intervals on the upper surface of the seedling mounting table (20), and extend in the vertical direction so as to separate the stripes. On the lower side of the seedling mounting table (20), a vertical transport device configured by winding a vertical transport belt (25) around a drive shaft (23) and a driven shaft (24) arranged vertically in parallel. (22) is provided for each article.

A rotary case (27) rotating at a constant speed in one direction is supported by a planting transmission case (26).
A pair of planting claw cases (28) are disposed at positions symmetrical about the rotation axis of the rotary case (27), and a planting claw (29) is provided at the tip of the planting claw case (28). Is attached. A drive shaft (not shown) extended from the rear of the transmission case (4)
Is linked to the planting transmission case (26),
0), each drive of the vertical transport device (22), the rotary case (27) and the planting claw case (28).

A hitch bracket (31) is pivotally attached to the front end of the planting transmission case (26) via a rolling fulcrum shaft (30) so as to be tiltable left and right, and is connected to the hitch bracket (31). Top link (3
The planting section (17) is connected to the rear side of the traveling vehicle body (1) by using a three-point elevating link mechanism including a 2) and a lower link (33). The planting section (17) is configured to be moved up and down by a telescopic operation of a hydraulic cylinder (34) interposed between the rear part of the traveling vehicle body (1) and the lower link (33). Also, below the planting transmission case (26), the center and left and right planting level floats (35) (3)
6) is supported via a planting depth adjusting link (37) or the like, and the planting part (17) is lowered to float (3).
5) By landing (36), the seedling mounting table (20)
The planting depth of the seedlings taken out of the upper seedling mat is set.

In the riding rice transplanter having the above configuration,
In order to efficiently plant seedlings, use a roll-shaped seedling mat (40) obtained by winding a long seedling mat in a belt shape around the peripheral surface of the shaft roll (39), in addition to a normal seedling mat. There is. This seedling mat is seeded on non-woven paper that dissolves in fertilizer and raised by hydroponic cultivation. And can be formed lightly,
It can be wound into a roll. Therefore,
Next, the seedling mounting table (20) configured to support such a rolled seedling mat (40) will be further described.

FIG. 2 is a schematic side view of the seedling mounting table, FIG. 3 is a schematic front view thereof, FIG. 4 is a schematic front view showing an auxiliary transport device, and FIG. 5 is a schematic perspective view of a roll-shaped seedling mat. As shown in the figure, the roll-shaped seedling mat (40) is supported on a shaft support member (44) provided on the seedling mounting table (20) on the shaft roll (39) of the roll-shaped seedling mat (40). A support roll (41) is inserted into the support roll (41), and a substantially cylindrical roll support shaft (42) protrudes from the center of the left and right sides of the support roll (41). And
The locking portion (4) of the shaft support member (44) provided on the seedling mounting table (20)
5), the roll support shaft (42) of the roll-shaped seedling mat (40) is locked, and the lower part of the roll-shaped seedling mat (40) is brought into contact with the vertical transport belt (25) of the vertical transport device (22). The rolled seedling mat (40) is set on the seedling mounting table (20) so as to be able to be fed out, and the seedling planting operation is performed.

As described above, the vertical ribs (21) are arranged at predetermined intervals on the upper surface of the seedling mounting table (20), and the shaft support member (44) is located near each vertical rib (21) and 2 per article
They are arranged as one set facing each other. The pair of shaft support members (44) are fixed to the inner surface of the upper end portion on the side opposite to the locking portion (45) by welding the side surfaces of both ends of a substantially U-shaped connection member (48) in front view. The fitting members (49) are respectively connected to the lower surfaces of both ends of the connecting member (48) and the arc-shaped notches (47) formed at the upper end of the shaft support member (44). The upper surfaces at both ends are fixed by welding. The fitting member (49) can be fitted from above onto a support shaft (50) mounted on a bracket (51) attached to the vertical ribs (21) at the left and right ends of the seedling mounting table (20). A shaft support member (44), which is formed in a substantially U-shape when viewed from the side and one of which is opened, and formed into a substantially U-shape when viewed from the side;
And the connecting member (48) are pivotally supported so as to be integrally rotatable about the support shaft (50).

According to such a configuration, first, the roll-shaped seedling mat (40) is attached to the pivot member (44), and then the pivot member (44) is attached to the pivot ( 5
0), the roll-shaped seedling mat (4)
0) can be set on the seedling mounting table (20) from above.
The work of setting the roll-shaped seedling mat (40) on the seedling mounting table (20) in the central portion where there is no gap between the rolled seedling mats (20) can be performed easily and conveniently by one person. ) Can be set on the seedling mounting table (20). Further, if the insertion member (49) is formed with tapered portions in front, rear, left and right in a side view and a front view, it becomes easy to be fitted into the support shaft (50), and the workability and handleability can be further improved.

Further, as described above, the shaft support member (44)
The roll support shaft (4) of the support roll (41)
2) is formed with a locking portion (45) that is rotatably and removably locked. As shown in FIG. 2, the locking portion (45) has a roll-shaped seedling mat (40). Due to its own weight, a notch (46) cut out in a substantially semicircular shape is formed outwardly on the tip side where the roll support shaft (42) comes into contact, and the roll support shaft (42) can be securely held. It has become. As shown in FIG. 5, a groove (43) having a width in which the shaft support member (44) can be fitted is provided on the peripheral surface of the roll support shaft (42).
2) can be fitted into the notch (46) of the shaft support member (44), and the shaft support member (44) can be fitted and held in the groove (43). Therefore, the movement of the roll-shaped seedling mat (40) in the vertical and horizontal directions is suppressed, thereby preventing the roll-shaped seedling mat (40) from rotating and vibrating itself and the loosening caused by the vibration of the riding rice transplanter. Therefore, it is possible to prevent the seedling mat from being fed poorly due to loosening.

Further, such a roll-shaped seedling mat (4)
In the case of 0), when the diameter of the roll is reduced by the planting operation, the weight of the roll-shaped seedling mat (40) becomes lighter. Therefore, the vertical transport device ( 22) does not contact the vertical transport belt (25) well,
If only the transport action by the vertical transport belt (25) is used, there is a problem that a streak in which the seedling mat cannot be suitably sent is generated in the outlet (38) of the seedling scraped by the planting claws (29).
Therefore, in the present invention, an auxiliary transport device (60) for forcibly sending out the roll-shaped seedling mat (40) is provided on the seedling mounting table (20) for each strip so as not to cause such a case. Hereinafter, the description will be made.

As shown in FIGS. 2 to 4, the auxiliary transport device (60) has a support member (6) formed in a substantially U-shape in plan view.
2) A transport belt (65) is wound around a driving roller (63) and a driven roller (64) which are supported in parallel at a predetermined interval inside the inner part of (2). It is pivotally supported by a support shaft (66) pivotally supported by a vertical rib (21) of the mounting table (20) or a bracket (61) protruding from a base plate (59) described later, and is rotatably supported. In addition, the transport belt (65) is configured to abut on the outer peripheral surface of the roll-shaped seedling mat (40).
Then, the drive roller (6) is provided inside the support member (62).
A sprocket (67) is fixedly mounted at one end of 3), and a sprocket (6) is also mounted at one end of the support shaft (66) on the same side.
8) are fixed, and the sprockets (67) (6)
The chain (69) is wound around 8), and the sprockets (67) (68) are rotated by rotating the support shaft (66).
The transport belt (65) of the auxiliary transport device (60) provided on each strip is simultaneously driven to rotate via the chain (69).

The means for rotating the support shaft (66) uses, for example, a power cylinder (70) operated by electric power from a battery, and FIG. 3 shows a state in which the power cylinder (70) is provided on the leftmost strip. It is shown. The power cylinder (70) is mounted on a mounting plate (71) with its base rotatably pivotally mounted. The mounting plate (71) is mounted on a base plate (59) by bolts or the like. The base plate (59) is attached between the vertical ribs (21) on the seedling mounting table (20) by bolts or the like. The tip of the piston rod (70a) of the power cylinder (70) is pivotally connected to the operating member (73), and the operating member (73) is interlocked with the one-way clutch (72) fitted on the support shaft (66). The support shaft (66) is configured to intermittently rotate only in the clockwise direction in the side view of FIG. 2 due to the linked operation and the shortening operation of the piston rod (70a) and the one-way clutch (72). The operating member (73) has a piston rod (70).
a) A plurality of holes (73a) for pivotally supporting the distal end are formed, and the amplitude of the operating member (73) can be changed so that the rotation amount of the support shaft (66) can be adjusted.

When the piston rod (70a) of the power cylinder (70) is shortened, the support shaft (6
6) and the chain (69), the driving roller (63) rotates clockwise in the side view of FIG. 2, and the conveyance belt (65) is intermittently driven to rotate in the direction of the arrow shown in the drawing. The roll-shaped seedling mat (40) is intermittently and forcibly rotated and fed out onto the vertical transport belt (25) of the vertical transport device (20), and is suitably transported to the seedling outlet (38). Will be. At this time, the rotation timing of the transport belt (65) is synchronized with the rotation timing of the vertical transport belt (25), and the transport belt (65) is rotated.
When the feed amount of the rolled seedling mat (40) is the same as the feed amount of the vertical transport belt (25), it is possible to prevent the roll-shaped seedling mat (40) from being loosened. Further, as described above, the transport belt (65) of the auxiliary transport device (60) is supported by the support shaft (6).
Since it is configured to be driven to rotate by rotating 6), there is no need to separately provide a shaft for driving the rotation of the transport belt, and there is an advantage that the structure can be simplified.

Further, similarly to the vertical transport belt (25) of the vertical transport device (22), the auxiliary transport device (60) has two sets of transport belts (65) having a large number of projections (65a) protruding on the surface. 65), the auxiliary transport device (60) having a large contact area and friction with the outer peripheral surface of the seedling mat (40) wound in a roll shape and having the transport belt (65). Is rotatably supported by the support shaft (66) and comes into contact with the outer peripheral surface of the roll-shaped seedling mat (40) by its own weight.
Even if the roll diameter of 0) is reduced by the planting operation, the roll can be reliably brought into contact and fed out, and the feeding failure as in the related art can be completely prevented. As shown in the figure, a reinforcing member (74) is supported on a support member (62) of the auxiliary transfer device (60), and a base plate (59) and a vertical rib (2) are provided.
1) A bracket (75) having a hole (75a) formed therein is provided, and a spring (76) is stretched between the reinforcing member (74) and the hole (75a) to transfer the auxiliary transfer device (60). The belt (65) may be forcibly brought into contact with the outer peripheral surface of the roll-shaped seedling mat (40), and the number of holes (75a) formed in the bracket (75) may be plural. Then, the auxiliary transfer device (60) is rolled into a seedling mat (40).
May be adjustable.

As shown in FIG. 6, the connecting member (4
8), when the roll-shaped seedling mat (40) is set on the support member (44), an elongated rod-shaped connecting body (5) for holding the support member (44) at the set position.
2) is provided. The proximal end of the connecting body (52) is pivotally supported by a pin (53) attached to the inside of the connecting member (48), and a hook (52a) is formed at the distal end. The hook (52a) is mounted on the seedling. The support member (44) is held at a predetermined set position by engaging with the reinforcing member (58) of the stand (20). Then, the connecting body (52) in which the roll-shaped seedling mat (40) is set on the shaft supporting member (44) and the hook (52a) is removed from the reinforcing member (58) is provided inside the connecting member (48). The pin (54) and the locking portion (55) are held by utilizing their elasticity, so that they can be stored along with the connecting member (48) so as not to interfere with the planting operation. Has become. The means for holding the connecting body (52) is not limited to the one shown in the drawing, and may be configured in any manner, such as by being attracted by a magnet or sandwiched by a substantially cylindrical clamp made of synthetic resin. Good. Also,
If the shape of the hook (52a) of the connecting body (52) is also detachable and not easily detached,
Any shape may be used.

Further, the reinforcing member (58) is connected to the seedling mounting table (2).
0) on the vertical ribs (21) at the left and right ends and above the bracket (51) on which the support shaft (50) supporting the roll-shaped seedling mat (40) is mounted. It is installed in a mold shape. Therefore, not only the rigidity of the seedling mounting table (20) is improved, but also the rolled seedling mat (4) is improved.
0) It is also effective as a reinforcement for supporting the load, and when setting a roll-shaped seedling mat (40).
The reinforcing member (58) does not hinder the rotation operation of the connecting member (48) and the pivot support member (44). Further, since a predetermined gap is formed between the lower surface of the reinforcing member (58) and the upper surface of the seedling mounting table (20), even when a normal seedling mat that is not wound in a roll shape is used, the reinforcing member can be reinforced. The member (58) does not hinder, and these roll-shaped or ordinary seedling mats can be suitably set.

In addition, as shown in FIG.
In the lower part of (0), a lifting prevention body (56) which comes into contact with the lower end of the seedling mat conveyed vertically and rotates smoothly in conjunction with the downward sliding of a fixed amount of the seedling mat, and a rod-shaped seedling A mat retainer (57) is provided, and the rolled-out seedling mat (40) is pushed out by the seedling mat retainer (57), and is vertically transported by the vertical transport device (22) by the lifting prevention body (56). Press the lower part of the seedling mat to prevent the seedling mat from lifting up as a whole,
The amount of seedlings collected on the seedling mat by the planting claws (29) is ensured in a satisfactory manner. In addition, the lifting prevention body (5
6) and the seedling mat retainer (57) can be moved forward and backward with respect to the seedling mounting table (20), so that the seedling mat can be always arranged at a position where the floating prevention action with respect to the seedling mat is optimal. Is configured so that the posture can be changed to the floating prevention non-operation position, so that when the roll-shaped seedling mat (40) is set, the setting operation can be performed easily.

[0022]

As described above, according to the present invention, an auxiliary transport device for sending out a seedling mat is provided on a seedling mounting table configured to support a seedling mat wound in a roll shape. The seedling mat can be suitably sent out regardless of the roll diameter of the mat. In addition, since the auxiliary transport device is configured to rotate for each strip, even if the roll diameter is reduced by the planting operation, the auxiliary transport device surely comes into contact with the seedling mat. In addition, since the auxiliary transport device is configured so that the member abutting on the seedling mat is forcibly rotated,
Since it can be sent out reliably and the member that comes into contact with the seedling mat is rotated by the support shaft that supports the auxiliary transport device, the structure can be simplified. Furthermore, the member that comes into contact with the seedling mat rotates in synchronization with the vertical conveyance belt of the vertical conveyance device, and the feed amount is the same as the feed amount of the vertical conveyance belt. Does not occur.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a riding rice transplanter.

FIG. 2 is a schematic side view of a seedling mounting table.

FIG. 3 is a schematic front view of the same.

FIG. 4 is a schematic front view showing an auxiliary transport device.

FIG. 5 is a schematic perspective view of a roll-shaped seedling mat.

6A is a schematic side view of a seedling mounting table, and FIG. 6B is a plan view of a connecting member.

[Explanation of symbols]

 Reference Signs List 20 seedling table 40 roll-shaped seedling mat 60 auxiliary transfer device 62 support member 63 drive roller 64 driven roller 65 transfer belt 66 support shaft 67 sprocket 68 sprocket 69 chain 70 power cylinder 72 one-way clutch

Claims (5)

[Claims] 1. A seedling mounting table for a rice transplanter, wherein an auxiliary transfer device for sending out a seedling mat is provided on a seedling mounting table configured to support a seedling mat wound in a roll shape. 2. The seedling mounting table of a rice transplanter according to claim 1, wherein the auxiliary transport device is configured to rotate for each strip. 3. The seedling mounting table of a rice transplanter according to claim 1, wherein the auxiliary transport device is configured such that a member abutting on the seedling mat is forcibly rotated. 4. The seedling mounting table of a rice transplanter according to claim 3, wherein a member that comes into contact with the seedling mat is rotated by a support shaft that supports the auxiliary transport device. 5. A member that abuts against a seedling mat rotates in synchronization with a vertical transport belt of a vertical transport device, and a feed amount thereof is the same as a feed amount of the vertical transport belt.
Or the seedling mounting stand of the rice transplanter according to 4.