JP3359779B2 - Rice transplanter for multi-row planting - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-row planting planting apparatus having an object to be adjusted in accordance with the turning operation of an adjusting shaft by one operating lever. The present invention relates to a rice transplanter for multi-row planting.

[0002]

2. Description of the Related Art As an object to be adjusted in a rice transplanter for multi-row planting as described above, a height position with respect to a planting transmission case is adjusted by rotating a float fulcrum pipe which is an example of an adjusting shaft. There is a seedling table whose height position with respect to the planting transmission case is adjusted with a turning operation of a seedling collection amount adjusting shaft which is an example of an adjusting shaft. Incidentally, by adjusting the height position of the leveling float with respect to the planting transmission case, the ground height of the planting mechanism supported at the rear of the planting transmission case is changed, and the seedling planting depth with respect to the field is changed. It has become so. Also, by adjusting the height position of the seedling mounting table with respect to the planting transmission case,
The height of the seedling mounting table with respect to the planting mechanism is changed, and the amount of seedlings collected by the planting mechanism is changed.

In recent years, in a multi-row rice transplanter equipped with a seedling planting device such as an eight-row planting plant or a ten-row planting plant, the seedling planting device has become protruding greatly from the left and right sides of the traveling machine. Therefore, the seedling planting device is configured into a two-part structure of the left seedling planting device unit and the right seedling planting device unit, and the working posture in which the overhang amount of the seedling planting device in the machine lateral direction becomes large. A configuration in which the attitude of the seedling planting apparatus can be switched to a storage attitude in which the amount of overhang of the seedling plant in the lateral direction of the machine is small has been proposed by the present applicant (for example, see Japanese Patent Application No. 6-94650). . According to this configuration, when the rice transplanter is driven on the road by switching the seedling planting apparatus to the retracted posture, the overhang of the seedling planting apparatus from the lateral direction of the machine is suppressed. The risk of collision between the device and other objects can be reduced, and when using a transport vehicle such as a truck when moving the rice transplanter, the seedling planting device is prevented from protruding from the width of the bed. As a result, the risk of collision between the seedling plant and other objects can be eliminated.

Conventionally, in a multi-row rice transplanter in which the posture of the seedling planting apparatus can be switched between the working posture and the storage posture as described above, the adjusting shaft is provided on the left seedling planting device. An operation capable of being fixed to an arbitrary operation position on one of the left and right adjustment shafts while being configured in a two-part structure of a left adjustment shaft belonging to the right adjustment shaft and a right adjustment shaft belonging to the right seedling planting device. The levers are connected so that the left and right adjustment shafts are connected in the working posture of the seedling planting device, and the left and right adjustment shafts rotate integrally with the swinging operation of the operation lever. When the operation lever is operated, the left and right adjustment shafts are integrally stopped by the fixing operation of the operation lever at an arbitrary operation position.

[0005]

However, in the above-mentioned prior art, once the adjusting shaft is separated into the right and left adjusting shafts in accordance with the switching of the planting device to the retracted posture, the left and right adjusting shafts are adjusted. One of the shafts is connected to an operation lever that can be fixed at an arbitrary operation position, so that the operation lever is prevented from rotating,
The controlled body of the seedling planting device section to which the adjustment shaft belongs is held at the adjustment position set by the operation lever, but the other adjustment shaft is moved from the operation lever with the separation of the adjustment shaft. Since it is separated, the rotation inhibition by the operation lever is released, and the regulated body provided in the seedling planting device to which the adjustment shaft belongs belongs by the free rotation of the adjustment shaft. The position shifts from the adjustment position set by the operation lever. Therefore, when switching the seedling placement apparatus from the retracted position to the working position, when the separated left and right adjustment shafts are connected, the adjusted object located at the adjusted position and the adjusted object displaced from the adjusted position are not connected. It is necessary to perform positioning, and it is difficult to judge whether or not the adjustment levels of the objects to be adjusted are matched by the positioning. Therefore, the posture switching operation of the seedling planting apparatus from the storage posture to the working posture is performed. Was annoying. In addition, since it is difficult to determine whether or not the adjustment levels of those regulated objects have been matched by alignment,
When the seedling planting apparatus is switched to the working posture, there is a possibility that the left and right adjustment shafts may be connected in a state where the controlled bodies are displaced. The inconvenience that the planting accuracy is deteriorated has occurred. For example, when the regulated body is a leveling float, the inconvenience that the seedling planting depth is different depending on the left and right seedling planting units in the seedling planting apparatus occurs, and when the regulated body is a seedling mounting table, There is a disadvantage that the amount of seedling planted differs depending on the right and left seedling planting units in the seedling planting apparatus.

An object of the present invention is to provide a seedling-planting apparatus having a two-part structure capable of switching positions, which is advantageous when a rice transplanter is run on a road or transported by using a truck or other transport vehicle. In addition, it is possible to easily perform the work of switching the posture of the seedling planting device from the storage posture to the working posture, and to eliminate the possibility of connecting the left and right adjustment shafts in a state where the right and left controlled bodies are displaced. It is in.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, a multi-row plant having an adjustable body whose position is adjusted in accordance with the turning operation of an adjusting shaft by one operating lever is provided. In a rice transplanter for multiple planting in which the seedling planting device is connected to a traveling machine, the seedling planting device is configured into a two-part structure of a left seedling planting device portion and a right seedling planting device portion, The adjusting shaft is configured in a two-part structure of a left adjusting shaft portion belonging to the left seedling planting device portion and a right adjusting shaft portion belonging to the right seedling planting device portion, and the seedling planting device, The working posture in which the inner lateral sides of the left and right seedling planting units are joined together and the left and right adjusting shafts are integrally rotatably connected to each other, and the rear surfaces of the left and right seedling planting units are opposed to each other. And the attitude can be switched to the retracted attitude where the left and right adjustment shafts are separated. And, further, among the left and right adjusting shaft section, together with connecting lockably the operating lever at an arbitrary operating position on one, with suppressing braking means freedom rotation of the adjusting shaft portion to the other.

In the second invention, a multi-row seedling planting apparatus having a multi-row planting seedling device having an object to be adjusted in accordance with a rotation operation of an adjustment shaft by one operating lever is connected to a traveling body. In a rice transplanter for planting, the seedling planting device is configured in a two-part structure of a left seedling planting device portion and a right seedling planting device portion, and the adjusting shaft is provided in the left seedling planting device portion. A left adjusting shaft portion and a right adjusting shaft portion belonging to the right seedling planting device portion, and the seedling planting device is an inner lateral portion of the left and right seedling planting device portions. A working posture in which the left and right adjustment shafts are joined together and the left and right adjustment shafts are rotatably connected together, and a storage posture in which the rear surfaces of the left and right seedling planting devices are opposed to each other and the left and right adjustment shafts are separated. The posture can be switched at any time. In addition to the left and right rotation sensors that detect the respective amounts of rotation of the adjustment shafts, the amount of rotation of the left and right adjustment shafts is compared with the traveling body, and the comparison difference exceeds a predetermined range. And control means for operating the alarm means.

[0009]

According to the first aspect of the present invention, even if the adjusting shaft is once separated into the left and right adjusting shafts when the posture of the planting device is switched to the storage position, one of the left and right adjusting shafts is used. Since the operation lever that can be fixed to an arbitrary operation position is connected, the operation lever is prevented from rotating. That is, the regulated body of the seedling planting apparatus to which the adjusting shaft belongs is held at the adjusted position set by the operation lever. The other adjusting shaft is separated from the operating lever when the adjusting shaft is separated. However, since the adjusting shaft is provided with a braking device for suppressing the free rotation of the adjusting shaft, the rotation is prevented by the braking device. It will be in the state that was done. That is, the controlled body of the seedling planting device to which the adjustment shaft belongs is also held at the adjustment position set by the operation lever. Therefore, when the left and right adjustment shafts are connected when the seedling placement device is switched from the retracted position to the working position, there is no need to perform the positioning of the controlled bodies. Further, when the posture of the seedling planting apparatus is switched to the working posture, there is no possibility that the left and right adjustment shafts are connected in a state where the controlled bodies are displaced.

According to the second aspect of the present invention, the control means compares the rotational operation amounts of the left and right adjustment shafts detected by the left and right rotation sensors, and if the difference exceeds a predetermined range, the alarm means is activated. It works. In other words, when the left and right controlled bodies are displaced when the left and right adjustment shafts are connected when the seedling planting device is switched from the storage posture to the working posture, the left and right rotation sensors detected by the left and right rotation sensors respectively. Since a difference exceeding a predetermined range occurs in the amount of turning operation of the adjusting shaft portion, the control means activates the alarm means. Therefore, when the left and right adjustment shafts are connected when the seedling planting device is switched from the storage posture to the working posture, it can be easily determined whether or not the right and left regulated bodies match by alignment. From that
The operation of switching the posture of the planting apparatus from the storage posture to the working posture is facilitated. In addition, when the posture of the planting device is switched to the working posture, there is no possibility that the left and right adjustment shafts are connected in a state where the right and left controlled bodies are displaced.

[0011]

Therefore, according to the first aspect of the present invention, the operation of switching the posture of the seedling planting device from the storage posture to the work posture can be easily performed, and the left and right controlled bodies are displaced. Since the possibility of connecting the left and right adjusting shafts can be eliminated, the posture switching becomes advantageous when the seedling planting device is run on a road of a rice transplanter or transported using a truck or other transport vehicle. Although it is possible to construct a two-part structure, it is possible to avoid the disadvantage that seedling planting accuracy is deteriorated.

According to the second aspect of the invention, the same effect as that of the first aspect of the invention can be obtained while adopting a configuration different from that of the first aspect of the invention.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the first invention will be described below with reference to the drawings.

FIG. 1 shows an overall side view of a riding type rice transplanter. This riding type rice transplanter has a riding type traveling machine 1.
And an eight-row seedling planting device 4 which is connected to the rear part of the traveling machine body 1 by a hydraulic lift cylinder 3 via a link mechanism 2 so as to be able to ascend and descend by an eight-row planting. Is configured for The seedling planting apparatus 4 is configured to have a two-part structure including a left seedling planting unit 4A and a right seedling planting unit 4B, each of which has four lines, and the working posture (see FIG. 2) and a storage posture (see FIG. 3) that reduces the amount of overhang in the lateral direction of the machine.

The structure of the seedling planting apparatus 4 will be described in detail.
As shown in FIGS. 1 to 4, the seedling planting device 4 includes a fixed frame 5 connected to the rear end of the link mechanism 2, and a pivotally connected pivotally swingable left and right to each end of the fixed frame 5. Swing frame 6, a feed case 8 pivotally connected to the swing end of each of the left and right swing frames 6 via a support bracket 7 so as to be swingable left and right, and a right and left feed case 8.
Frame-like support frame 9 extending from the left and right sides to the left and right, a frame combined planting transmission case 10 extending rearward from both ends of the left and right supporting frames 9, and each planting transmission case 10 A pair of left and right rotary planting mechanisms 11 pivotally supported at the rear of the plant. An adjustable body that is configured to be able to adjust the height of the planting transmission case 10 and to perform a leveling action on a seedling mounting table 12 of four right and left rows, which is an example of an adjusting body, and a place where a seedling is planted by the planting mechanism 11. It is composed of a leveling float 13 which is an example of a body.

As shown in FIGS. 2 to 6, a floating fulcrum pipe which is an example of an adjustment shaft laid across the planting transmission case 10 is provided at a lower front portion of each planting transmission case 10. 14 is rotatably supported around its axis P1. The float fulcrum pipe 14 is connected to the seedling planting device 4.
In the storage position of the left, the left float fulcrum pipe portion 14A which is an example of the left adjustment shaft portion belonging to the left seedling planting device portion 4A.
And a right float fulcrum pipe portion 14B which is an example of a right adjusting shaft portion belonging to the right seedling planting device portion 4B. In the working posture of the seedling planting device 4, the left and right float fulcrum pipe portions 14A, 1A are provided.
The connecting members 14a and 14b provided at each of the divided ends of 4B are connected so as to be integrally rotatable. The float fulcrum pipe 14 includes a plurality of swing arms 15 integrally rotating around the axis P1 of the float fulcrum pipe 14.
Extends rearward. Each swing arm 15
The rear end of the leveling float 13 is pivotally supported at the free end thereof so as to be vertically swingable around the horizontal axis P2. Incidentally, the leveling float 13 disposed at the center in the left and right directions is pivotally supported by the swing arm 15 disposed on the left end side of the right float fulcrum pipe portion 14B, and belongs to the right seedling planting device portion 4B. I have.
An operation arm 16 that is rotatable integrally with the right float fulcrum pipe portion 14B extends toward the traveling body 1 at the right float fulcrum pipe portion 14B. On the other hand, a frame lever 17 supporting the right seedling mounting table 12 has a swinging operation lever 18 and a locking member 19 for engaging the operation lever 18 to fix the operation lever 18 at an arbitrary operation position. Are provided. The operation lever 18 and the operation arm 16 are linked by a link mechanism (not shown) including an operation rod and the like. That is, the operating lever 18 and the right float fulcrum pipe portion 14B are interlocked and connected, and in the working posture of the seedling planting device 4 to which the left and right float fulcrum pipe portions 14A and 14B are connected, the operating lever 18 can be arbitrarily set. By swinging to the operation position, the left and right float fulcrum pipe portions 14A and 14B can be integrally rotated around the axis P1, and the swing arms 15 are vertically moved together with the swing operation. By swinging, the relative height of each leveling float 13 with respect to the planting transmission case 10 can be integrally adjusted to a desired height, and the operation lever 18 is engaged with the lock 19 and fixedly held at an arbitrary operation position. By doing so, each leveling float 13 can be integrally set to a desired height with respect to the planting transmission case 10. That is, by operating the operation lever 18, the height of the planting mechanism 11 supported on the rear portion of the planting transmission case 10 with respect to the ground can be changed, and the setting of the seedling planting depth in the field can be changed.

As shown in FIG. 7, braking means for suppressing free rotation of the left float fulcrum pipe portion 14A in accordance with the switching of the seedling planting device 4 to the storage position is provided on the left float fulcrum pipe portion 14A. 20 are provided. The braking means 20 includes a brake plate 21 extending from the left end of the support frame 9 on the side belonging to the left seedling planting device 4A toward the left float fulcrum pipe 14A, and the left float fulcrum pipe 14A.
A hexagonal shaft 22 fitted in a state in which the hexagonal shaft 22 is relatively slidably and integrally rotated, a braked plate 23 fixed to the left end of the hexagonal shaft 22, a coil spring 24 for urging the braked plate 23 rightward, and A connecting member 14a for connecting the right float fulcrum pipe portion 14B fixed to the right end of the hexagonal shaft 22. That is, as shown in FIG. 7B, when the seedling planting apparatus 4 is in the working posture, the connecting member 14a is connected to the connecting member 14a of the right float fulcrum pipe portion 14B.
b, the brake target plate 23 moves to the left against the bias of the coil spring 24 and is separated from the brake plate 21, so that the right float fulcrum pipe portion 1
The right float fulcrum pipe part 1 of the left float fulcrum pipe part 14A by operating the operation lever 18 interlockingly connected to 4B
4B is allowed to rotate together. Also,
As shown in FIG. 7A, in the retracted posture of the seedling planting device 4, the connecting member 14a is connected to the right float fulcrum pipe 1
By being detached from the connecting member 14b of FIG. 4B, the brake target plate 23 moves rightward by the urging of the coil spring 24 and comes into close contact with the brake plate 21, and the free rotation is suppressed. The left float fulcrum pipe portion 14A is held at a rotational operation position set by operating the lever 18. This makes it possible to eliminate the inconvenience that the left float fulcrum pipe portion 14A and the right float fulcrum pipe portion 14B are displaced in the rotation direction in the storage posture of the seedling planting device 4.

As shown in FIGS. 4 to 6, each planting transmission case 10 in each of the right and left seedling planting units 4A and 4B.
At the front upper part of the plant, a seedling harvesting adjusting shaft 25 made of a cylindrical steel pipe material, which is an example of an adjusting shaft laid across the right and left planting transmission cases 10, is rotatable around its axis P3. Is pivoted to. In the storage position of the seedling planting device 4, the seedling harvesting adjustment shaft 25 includes a left seedling harvesting adjustment shaft 25A, which is an example of a left adjustment shaft belonging to the left seedling planting device 4A, and a right seedling planting plant. It has a two-part structure that is divided into two parts: a right seedling collection amount adjusting shaft portion 25B, which is an example of a right adjusting shaft portion belonging to the attachment device portion 4B. Further, in the working posture of the seedling planting device 4, the connecting members 25a, 25b provided at the respective divided ends of the left and right seedling collecting amount adjusting shaft portions 25A, 25B are connected so as to be integrally rotatable. I have. The seedling collecting amount adjusting shaft 25 is integrally rotated around the seedling collecting amount adjusting shaft 25 and its axis P3, so that the seedling mounting table 12 is moved in a direction along the seedling mounting surface, and The plurality of arm members 26 for changing the relative height of the seedling mounting table 12 are pivotally supported (axial center P3).
From the seedling mounting table 12. An operation arm 27 that is rotatable integrally with the left seedling collecting amount adjusting shaft portion 25A extends toward the traveling machine body 1 on the left seedling collecting amount adjusting shaft portion 25A. On the other hand, the frame rod 17 supporting the left seedling mounting table 12 has a swing-type operation lever 28 and a locking member for locking and holding the operation lever 28 at an arbitrary position by engagement with the operation lever 28. 29 are provided. The operation lever 28 and the operation arm 27 are linked by a link mechanism (not shown) including an operation rod and the like. In other words, the operation lever 28 and the left seedling harvesting amount adjusting shaft 25A are linked to each other, and the left and right seedling harvesting adjusting shafts 25A, 25B are connected.
In the working posture of the seedling planting device 4 to which is connected, the operating lever 28 is swung to an arbitrary operating position, so that the left and right seedling collection adjusting shaft portions 25A and 25B are integrated around the axis P3. The relative height of the left and right seedling mounting tables 12 with respect to the planting transmission case 10 can be integrally adjusted to a desired height by the integrated vertical swing of each arm member 26 accompanying the rotating operation. The position can be adjusted, and the left and right seedling mounting tables 12 can be integrally set to a desired height with respect to the planting transmission case 10 by engaging and holding the operation lever 28 with the locking tool 29 and fixedly holding the operation lever 28 at an arbitrary operation position. Has become. That is, by operating the operation lever 28, the amount of seedlings collected from the seedling mounting table 12 by the planting mechanism 11 can be adjusted.

The right seedling collecting amount adjusting shaft portion 25B is provided with a braking means 30 for suppressing the free rotation of the right seedling collecting amount adjusting shaft portion 25B when the posture of the seedling planting device 4 is switched to the storage position. Have been. The braking means 30 is configured in the same manner as the braking means 20 provided on the left float fulcrum pipe portion 14A shown in FIG. 7 (symmetrical in the left-right direction). Is the right seedling planting unit 4B
The brake plate 31 extending from the right end of the support frame 9 on the side belonging to the right side to the right seedling collecting amount adjusting shaft 25B and the right seedling collecting amount adjusting shaft 25B are in a state in which they are slidably and integrally rotated. The fitted hexagonal shaft 32, the plate to be braked 33 fixed to the right end of the hexagonal shaft 32, and the coil spring 3 for urging the plate to be braked 33 leftward
4 and a connecting member 25b for connecting the left seedling collecting amount adjusting shaft portion 25A fixed to the left end of the hexagonal shaft 32. That is, the braking means 30 is provided on the right seedling collection amount adjusting shaft 25B in a state where FIG. 7 is turned left and right, and as shown in FIG. In the above, the connecting member 25b is
By being connected to the connecting member 25a of A, the braked plate 33 moves to the right against the urging of the coil spring 34 and is separated from the brake plate 31, so that the left seedling collecting amount adjusting shaft The left seedling yield adjusting shaft 25 of the right seedling yield adjusting shaft 25B operated by the operation lever 28 interlocked with the portion 25A.
A is allowed to rotate together with A. Also, as shown in FIG. 7A, in the retracted posture of the seedling planting device 4, the connecting member 25b is detached from the connecting member 25a of the left seedling collecting amount adjusting shaft portion 25A, so that the plate to be braked. 3
3 moves to the left by the urging of the coil spring 34 and comes into close contact with the brake plate 31 to be in a state where free rotation is suppressed, so that the right seedling is moved to the rotation operation position set by operating the operation lever 28. The take-up amount adjusting shaft portion 25B is held. Thereby, in the storage posture of the seedling planting device 4,
The inconvenience that the left seedling picking amount adjusting shaft portion 25A and the right seedling collecting amount adjusting shaft portion 25B are displaced in the rotation direction can be eliminated.

With the above configuration, the left float fulcrum pipe portion 14A and the right float fulcrum pipe portion 14 at the time of switching the posture of the planting apparatus 4 from the storage posture to the working posture.
B, and since it becomes possible to smoothly connect the left seedling yield adjusting shaft 25A and the right seedling harvesting adjusting shaft 25B,
It is possible to easily switch the seedling placement device 4 from the storage position to the working position. In addition, the left float fulcrum pipe portion 14A and the right float fulcrum pipe portion 14B, and the left seedling yield adjusting shaft portion 25A and the right seedling yield adjusting shaft portion 25B.
Are not connected in a state of being displaced in the rotation direction, so that the leveling floats 13 with respect to the planting transmission case 10 or the height positions of the left and right seedling mounting tables 12 become uneven, and The inconvenience of adversely affecting the accuracy of seedling planting by the attachment device 4 can be eliminated.

Hereinafter, an embodiment of the second invention will be described with reference to the drawings. The difference between the rice transplanter for multi-row planting of the second invention and the rice transplanter for multi-row planting of the first invention is the same as that of the second embodiment.
In the invention, the braking means 20,
Instead of 30, rotation sensors Sa, Sb, Sc, and Sd, alarm means 35 and 36, and control means 37 are provided.

As shown in FIGS. 8 and 9, at the left end of the left float fulcrum pipe portion 14A, a rotation sensor Sa for detecting a rotation operation amount of the left float fulcrum pipe portion 14A is mounted. The rotation sensor Sa is connected to the support bracket 9.
The support frame 9 is supported by the left end of the support frame 9 on the side belonging to the left seedling planting apparatus 4A via a. A right float fulcrum pipe part 14B is provided at the right end of the right float fulcrum pipe part 14B.
A rotation sensor Sb for detecting a rotation operation amount of B is mounted. The rotation sensor Sb is supported at the right end of the support frame 9 on the side belonging to the right seedling planting unit 4B via the support bracket 9b. On the other hand, the traveling body 1 compares the rotational operation amounts of the left and right float fulcrum pipe portions 14A, 14B detected by the rotation sensors Sa, Sb, and if the comparison difference exceeds a predetermined range, an alarm means. A control device 37 as a control means including a microcomputer having a control program for operating the alarm buzzer 35, which is one example, is mounted. The alarm buzzer 35 is supplied with power only when the switch 38 for switching the power supply state for the alarm buzzer 35 is turned on. That is, when the posture of the planting device 4 is switched from the storage posture to the working posture, the switch 3
By turning on 8, the alarm buzzer 35 is activated when the left and right float fulcrum pipes 14 </ b> A, 14 </ b> B are displaced in the rotation direction.
As a result, the worker can move the left and right float fulcrum pipes 1
4A and 14B can be easily recognized as being misaligned in the rotational direction.

As shown in FIGS. 8 and 9, similarly to the float fulcrum pipe 14, at the left end of the left seedling collecting amount adjusting shaft portion 25A, a rotational operation amount of the left seedling collecting amount adjusting shaft portion 25A is detected. The rotation sensor Sc is mounted. This rotation sensor Sc
Is supported by the left end of the support frame 9 on the side belonging to the left seedling planting device 4A via the support bracket 9a. At the right end of the right seedling harvesting adjusting shaft 25B, a rotation sensor Sd for detecting the amount of rotation of the right seedling harvesting adjusting shaft 25B is mounted. The rotation sensor Sd is supported at the right end of the support frame 9 on the side belonging to the right seedling planting unit 4B via the support bracket 9b. These rotation sensors S
a, right and left seedling yield adjusting shaft portions 25 detected by Sb
The rotation operation amounts of A and 25B are output to the control device 37. The control device 37 compares the rotational operation amounts of the right and left seedling collection adjusting shaft portions 25A and 25B and, when the comparison difference exceeds a predetermined range, an alarm buzzer (an example of the alarm buzzer described above) which is an example of alarm means. A different tone from 35)
There is provided a control program for operating the G.36. The alarm buzzer 36 is supplied with electric power only when the switch 39 for switching the power supply state for the alarm buzzer 36 is turned on. That is, when the posture of the seedling planting device 4 is switched from the storage posture to the working posture, the switch 39 is turned ON, so that the left and right seedling collection adjusting shaft portions 25A and 25B are displaced in the rotational direction. The alarm buzzer 36 is activated when it is on, so that the worker can easily recognize the positional deviation in the rotation direction of the left and right seedling collection adjusting shaft portions 25A, 25B. .

With the above configuration, when the posture of the seedling planting apparatus 4 is switched from the storage posture to the working posture, the operator needs to move the left float fulcrum pipe portion 14A, the right float fulcrum pipe portion 14B, and the left seedling harvester. When connecting the amount adjustment shaft 25A and the right seedling collection amount adjustment shaft 25B, a positional deviation in the rotation direction between them can be easily recognized, and the connection between them can be performed smoothly. It is possible to easily switch the seedling placement device 4 from the storage position to the working position. In addition, the operator adjusts the position shift in the rotation direction between the left float fulcrum pipe part 14A and the right float fulcrum pipe part 14B, and between the left seedling yield adjusting shaft part 25A and the right seedling yield adjusting shaft part 25B. Because it can be easily recognized,
It is possible to eliminate the possibility of connecting them in a state where they are displaced in the rotation direction, and the leveling floats 13 with respect to the planting transmission case 10 or the height positions of the right and left seedling mounting tables 12 become uneven, and The inconvenience of adversely affecting the accuracy of seedling planting by the planting device 4 can be eliminated.

By the way, in the storage position of the seedling planting device 4, the switches 37 and 38 are turned OFF, so that the seedling planting device 4 is unexpectedly when traveling on a road in a state where the seedling planting device 4 is switched to the storage position. The inconvenience of operating the alarm buzzers 35 and 36 can be prevented.

[Other Embodiments] Other embodiments of the present invention will be listed below. In the above embodiment, the seedling planting device 4 for multi-row planting is exemplified by the one for eight-row planting.
For example, it may be for ten-row planting or twelve-row planting. For example, the braking means 20 and 30 are configured as a multi-plate type including a plurality of braking plates 21 and 31 and braked plates 23 and 33, or in conjunction with switching of the seedling planting apparatus 4 to the storage position. Various changes are possible, such as a switch to be operated or an electromagnetic type that operates based on a signal from a sensor that detects a posture change of the seedling placement device 4 to the storage posture. As the alarm means 35 and 36, an alarm lamp may be employed instead of the alarm buzzer.

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 an overall side view of a riding rice transplanter.

FIG. 2 is a plan view showing a working posture of the seedling planting apparatus.

FIG. 3 is a plan view showing a storage posture of the seedling planting device.

FIG. 4 is a rear view showing the storage posture of the seedling planting apparatus.

FIG. 5 is a plan view of a central portion of the seedling planting device showing a connecting portion of an adjustment shaft.

FIG. 6 is a longitudinal sectional side view of a central portion of a seedling planting device showing a position where an adjustment shaft is arranged.

FIG. 7 (a) Diagram showing the configuration and operating state of the braking means (b) Diagram showing the configuration and the non-operating state of the braking means

FIG. 8 is a schematic plan view of a seedling planting apparatus showing a configuration of an adjusting shaft in a second embodiment.

FIG. 9 is a block diagram illustrating a control configuration according to a second embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 traveling body 4 seedling planting device 4A left seedling planting device portion 4B right seedling planting device portion 12 controlled object 13 controlled object 14 adjusting shaft 14A left adjusting shaft portion 14B right adjusting shaft portion 18 operating lever 20 braking means 25 Adjusting shaft 25A Left adjusting shaft 25B Right adjusting shaft 28 Operating lever 30 Braking means 35 Warning means 36 Warning means 37 Control means Sa rotation sensor Sb rotation sensor Sc rotation sensor Sd rotation sensor

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) A01C 11/02 A01B 73/00-73/06

Claims (2)

(57) [Claims] An object to be adjusted (12), (13) is provided, the position of which is adjusted in accordance with the rotation of the adjusting shafts (14, 25) by one of the operating levers (18, 28). A rice planting machine for multiple planting in which a seedling planting device (4) for multiple planting is connected to a traveling machine (1), wherein the seedling planting device (4) is connected to a left seedling planting unit (4A). ) And a right seedling planting unit (4B), and the adjusting shafts (14) and (25) are provided with a left adjusting shaft unit (4A) belonging to the left seedling planting unit (4A). 14A), (25
A) and a right adjusting shaft portion (14B), (25B) belonging to the right seedling planting device portion (4B), and the seedling planting device (4) is provided with the right and left seedling planting device (4). The inner lateral sides of the seedling planting units (4A) and (4B) are joined together, and the left and right adjusting shafts (14A), (14B),
(25A) and (25B) are connected to each other so as to be rotatable integrally with the left and right seedling planting devices (4A) and (4B). ), (14B), (25A), (25B)
Is configured to be switchable between a retracted position and a retracted position, and furthermore, the left and right adjustment shafts (14A), (14B),
One of (25A) and (25B) is connected to the operation levers (18) and (28) so as to be fixable to an arbitrary operation position, and the other is provided with the adjustment shafts (14A) and (14).
B) A rice transplanter for multi-row planting provided with braking means (20) and (30) for suppressing free rotation of (25A) and (25B). 2. Adjustable bodies (12) and (13) whose positions are adjusted in accordance with the rotation of the adjusting shafts (14) and (25) by one of the operating levers (18) and (28). A rice planting machine for multiple planting in which a seedling planting device (4) for multiple planting is connected to a traveling machine (1), wherein the seedling planting device (4) is connected to a left seedling planting unit (4A). ) And a right seedling planting unit (4B), and the adjusting shafts (14) and (25) are provided with a left adjusting shaft unit (4A) belonging to the left seedling planting unit (4A). 14A), (25
A) and a right adjusting shaft portion (14B), (25B) belonging to the right seedling planting device portion (4B), and the seedling planting device (4) is provided with the right and left seedling planting device (4). The inner lateral sides of the seedling planting units (4A) and (4B) are joined together, and the left and right adjusting shafts (14A), (14B),
(25A) and (25B) are connected to each other so as to be rotatable integrally with the left and right seedling planting devices (4A) and (4B). ), (14B), (25A), (25B)
Is configured to be switchable to a retracted posture for separating the seedlings. Further, each of the left and right adjustment shafts (14A), (14B), (25A), and (25B) is attached to the seedling planting device (4). Left and right rotation sensors (Sa) for detecting the amount of rotation operation,
(Sb), (Sc), and (Sd), and the traveling body (1) includes the left and right adjustment shafts (14A),
The rotation operation amounts of (14B), (25A), and (25B) are compared, and if the comparison difference exceeds a predetermined range, the alarm means (3)
5) A rice transplanter for multi-row planting provided with control means (37) for operating (36).