JP4041277B2 - Transplanter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a transplanter having a seedling platform and a planting case portion below the seedling platform, and more particularly to a transplanter capable of detecting the moving position of the seedling platform.
[0002]
[Prior art]
In a transplanter such as a riding rice transplanter, a seedling platform on which seedlings are placed is mounted so as to be capable of reciprocating in the left-right direction with respect to the planting case. The seedling platform detects the remaining amount of seedlings. A seedling remaining amount sensor is provided, and a seedling vertical feed mechanism for feeding the seedlings downward is provided on the back side of the seedling platform at the left and right moving ends of the seedling platform. For example, in the state of preparation for planting work, the aircraft is moved to the heel, the seedling platform is moved to the left or right end closer to the heel and stopped, and the seedling is taken out from the seedling box in that state. Place on the platform. If the seedling remaining amount sensor is activated and the alarm buzzer sounds during the planting operation, the operator stops the alarm buzzer, stops the planting operation, replenishes the seedling mount with seedlings, Resume.
[0003]
[Problems to be solved by the invention]
However, according to the prior art, when seedlings are placed on the seedling stage prior to planting, it is necessary to supply the seedlings by bringing the seedling stage close to the bottom. It was difficult to stop accurately at the left and right moving ends. Further, for example, in the case of a multi-row rice transplanter such as 8-10, it is necessary to fold the seedling stage by stopping it at the center position in the moving direction in order to fold the seedling stage. It was difficult to stop the platform at the center position.
[0004]
The present invention has been made in order to solve such a problem. The object of the present invention is to detect the moving position of the seedling platform and automatically stop at that position, or notify with a buzzer or the like. The object is to provide a transplanter capable of doing this.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 corresponds to the seedling mounting base (27) in which a plurality of seedling mounting portions (27a) for mounting seedlings are arranged in the moving direction, and the seedling mounting portion (27a). In the transplanting machine (10) provided with a plurality of planting case portions (23, 24 ...) that are arranged below and transplanting seedlings with planting claws,
Detecting means (52a, 52c) (52b) for detecting that the seedling stage (27) has moved to the left and right ends and the central positions in the moving direction with respect to the planting case part (23, 24 ...). ) And
Switching means (59) for selectively switching detection of the left and right moving ends (52a, 52c) or the center position (52b) by the detection means;
When the detection means (52a, 52c) (52b) detects the left-right moving end or the center position of the seedling platform (27) switched by the switching means (59), the seedling platform is automatically set. Means for stopping or ringing the buzzer (58),
The transplanter is characterized by that .
[0006]
According to the invention of claim 2, based on the fact that the detecting means (52a, 52b, 52c) detects that the seedling stage (27) has moved to the moving end or the center position in the moving direction, Stop means (58, 60, 63, 65, etc.) for automatically stopping the movement of the seedling platform (27) is provided.
[0007]
According to a third aspect of the present invention, the detection means (52d) for detecting the left and right moving ends is based on the fact that the seedling placing stand (27) has moved to the moving end in the moving direction. The moving position of the seedling placing stand (27) is detected by driving the vertical feeding means (11) for conveying the seedling of (27a) from above to below.
[0008]
[Action]
As described above, according to the present invention, the transplanter (10) includes a seedling platform (27) in which a plurality of seedling platforms (27a) are arranged in the moving direction, and a plurality of planting case sections (23) arranged therebelow. , 24, etc.) and a detecting means (52) for detecting that the seedling stage (27) has moved to a predetermined position in the moving direction with respect to the planting case part (23, 24, etc.). Since it is provided, when it is detected that the seedling stage (27) has moved to a predetermined position, the seedling stage (27) can be automatically stopped or notified with a buzzer or the like.
[0009]
For this reason, for example, when a seedling is placed on the seedling placing stand (27) in a state where the transplanting machine (10) is moved to the heel at the preparation stage of the planting operation, the seedling placing stand (27) If it is moved to the moving end closer to the distance and stopped at the moving end, the workability at the time of seedling placement is improved, and also when storing the multi-row transplanter (10), the seedling When the moving end side of the platform (27) is folded, the seedling platform (27) can be accurately stopped at a substantially central position in the moving direction, so that the folding work is further facilitated.
[0010]
In addition, the code | symbol in the parenthesis mentioned above is shown in order to refer drawings, Comprising: This invention is not limited at all.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0012]
FIG. 1 shows a riding rice transplanter as a transplanter to which the present invention is applied. The riding rice transplanter 10 has a traveling machine body 14 supported by a front wheel 12 and a rear wheel 13. An engine 17 is mounted in the hood 16 in front of the steering wheel 15 in the body 14, and a driver seat 19 having a seat seat 18 is disposed at the rear of the traveling body 14. A hydraulic / planting lever 20 is provided on the side of the seat 18, and the hydraulic / planting lever 20 follows the lever guide and is “raised”, “fixed”, “lowered (automatic)”. , "Planting (automatic)" can be operated at each position.
[0013]
A planting part 22 is supported at the rear of the traveling machine body 14 through a lifting link mechanism 21 so as to be movable up and down. The planting part 22 includes a planter case 23, a rotary case 24, and a planter constituting the planting case part. In addition to the arm 25, the flow basket 26, and an apron 33, which will be described later, there is provided a seedling placing table 27 on which a mat seedling can be placed in the vertical direction (vertical direction). The seedling stage 27 includes a plurality of seedling parts 27a arranged in the lateral direction and a partition plate 27b that partitions the plurality of seedling parts 27a. Is provided. This seedling vertical feeding device 11 has a vertical feeding belt 28, and the seedbed is sequentially conveyed to the lower end side by driving this vertical feeding belt 28, scraped off by the planter arm 25, and planted on the rice field.
[0014]
Further, the traveling machine body 14 is provided with a hydraulic cylinder (not shown) between a link bracket 29 fixed to the elevating link mechanism 21, and will be described later based on the operation of the hydraulic pressure / planting lever 20. The hydraulic cylinder is expanded and contracted by a hydraulic control valve (not shown) disposed in the rear cover 30 below the seat 18 via the motor 58, and the planting portion 22 is controlled to move up and down.
[0015]
Next, as shown in FIG. 2, the planter case 23 of the planting part 22 is connected by a square frame 31, and the power transmitted to the planting part 22 is driven by the drive system of the planter arm 25 and the seedling platform. 27 is transmitted by being divided into three systems of a lateral feed drive system for laterally feeding 27 and a seedling longitudinal feed drive system.
[0016]
The seedling stage 27 is disposed so as to be reciprocally movable left and right with respect to the apron 33 by a lateral feed drive system including a screw shaft 32, and the seedling vertical part is arranged in the middle or lower part of the seedling stage 27 in the vertical direction. A feeding device 11 is provided, and the seedling vertical feeding device 11 conveys a mat seedling from above to below. The seedling vertical feeding device 11 includes a driving roller 34 and a driven roller 34 ′, and a vertical feeding belt 28 wound between the driving roller 34 and the driven roller 34 ′, and the surface of the vertical feeding belt 28. Is formed with a locking projection. The mat seedling is scraped off by the planter arm 25 through a notch 33a provided in the apron 33 below the seedling mount 27 and planted on the rice field.
[0017]
In the present embodiment, the planting case portion 23 is provided with detection means for detecting that the seedling stage 27 has moved to a predetermined position in the moving direction along the screw shaft 32.
[0018]
3 (a) to 3 (c) show an outline of the lateral feed drive mechanism, and the moving speed of the seedling platform 27 can be changed by the speed change mechanism 35 of the lateral feed drive mechanism. Yes.
[0019]
The speed change mechanism portion 35 has a speed change shaft 37 in a lateral feed case 36, and a plurality of speed change gears 38 are freely fitted on the speed change shaft 37, and a counter shaft parallel to the speed change shaft 37 is provided. A switching gear 40 that meshes with the transmission gear 38 is fixed to the key 39. A gear located at the end of the switching gear 40 meshes with a driven gear 41 fixed to the screw shaft 32.
[0020]
A slide key 42 is attached to the speed change shaft 37 along the axial direction, and a boss portion 44 is provided on the speed change shaft 37 in conjunction with the shift arm 43. The boss portion 44 and the slide key 42 slide together. The base end portion of the shift arm 43 is fixed to an operating rod 45 that slides substantially parallel to the transmission shaft 37. When the shift arm 43 is slid, the boss portion 44 and the slide key 42 are integrated. It can move and shift.
[0021]
The screw shaft 32 is formed with screw grooves 32a in the forward and reverse directions. When the screw shaft 32 rotates, the seedling table 27 is screwed by the action of the slide block 46 engaged with the screw grooves 32a. It moves in the forward and reverse direction along the shaft 32.
[0022]
A cam 47 is attached to the end of the screw shaft 32, and an arm 48 is attached to the vicinity of the cam 47 by a shaft 49, and the arm 48 moves up and down as the cam 47 rotates. Swing. By swinging the arm 48, the vertical feed lever 50 is intermittently beaten upward, and the seedling feed belt 28 is rotated in one direction by the one-way clutch 51 (see FIG. 2).
[0023]
Furthermore, as shown in FIG. 4, detection switches 52a, 52b, and 52c are provided at the left end position, the center position, and the right end position of the seedling mount 27, respectively. When the seedling stage 27 is moved to the left end position, the arm 48 is swung to press the left end position detection switch 52a to turn on the switch. When the seedling stage 27 is moved to the central position, When the arm 48 swings, the center position detection switch 52b is pressed to turn on, and when the seedling platform 27 moves to the right end position, the arm 48 swings to detect the right end position detection switch 52c. Is pressed to turn on the switch. As a result, the lateral movement position of the seedling stage 27 is detected.
[0024]
Further, in the present embodiment, based on the fact that the detection means 52 detects that the seedling stage 27 has moved to the moving end in the moving direction, the stopping means that automatically stops the movement of the seedling stage 27. It has.
[0025]
FIGS. 5A to 5C are circuit diagrams for detecting the moving position of the seedling table 27. With this circuit, the seedling table 27 is moved when the seedling table 27 is moved to a predetermined position. Automatically stop moving.
[0026]
That is, in FIGS. 5A and 5B, the voltage of the battery 53 is connected to the main unit circuit for buzzer sounding and the changeover switch 56 through the main switch 54 and the fuse 55. Further, the changeover switch 56 is connected via a CPU 57 to a motor 58 that connects and disconnects the planting clutch in the mission case. The motor 58 is driven by the operation of the hydraulic pressure / planting lever 20 to operate a cam 60 (see FIG. 6 described later), and the planting clutch is connected / disconnected by the operation of the cam 60.
[0027]
And if a planting clutch is cut | disconnected, the input of the motive power to the planting part 22 will be cut | disconnected, and the horizontal movement of the seedling mounting stand 27 will be stopped. The change-over switch 56 includes a change-over contact 56a, a terminal 56b to which the change-over contact 56a is connected when it is not desired to stop the seedling stand 27 during normal operation, And a terminal 56c that is connected when it is desired to stop the seedling mount 27 like time. The terminal 56 b is directly connected to the CPU 57, and the center detection switch 52 b or the left end detection switch 52 a and the right end detection switch 52 c are connected between the terminal 56 c and the CPU 57.
[0028]
FIG. 5 (c) shows a configuration in which the center detection switch 52b, the left end detection switch 52a, and the right end detection switch 52c are selectively switched by a changeover switch 59 that can be interlocked with the changeover switch 56. .
[0029]
In the present embodiment, a case has been described in which the movement of the seedling stage 27 is automatically stopped when the seedling stage 27 is moved to a predetermined position. When moved to the position, the buzzer can be sounded instead of stopping the movement of the seedling table 27, and both the automatic stop of the seedling table 27 and the buzzer can be sounded. If the buzzer is sounded when the seedling stage 27 is moved to a predetermined position, the operator can accurately stop the seedling stage 27 at the moving end position.
[0030]
As described above, for example, when the rice transplanter is moved at the heel and the seedling is replenished, the buzzer is sounded when the seedling platform 27 is moved to the end closer to the heel in the moving direction. If the movement of the seedling platform 27 can be stopped or automatically stopped by operating the hydraulic pressure / planting lever, the seedling replenishment work becomes convenient. In addition, for example, in the case of a multi-row rice transplanter such as 8-10, when folding the seedling mounting part on the left and right end sides of the seedling mounting base 27, the seedling mounting base 27 is approximately at the center in the moving direction. If it can be stopped, the folding work becomes easy.
[0031]
FIG. 6 shows a planting clutch mechanism. When the hydraulic pressure / planting lever 20 is operated, the motor 58 is driven according to the operation position, and the arm 63 is pivoted via the cam 60 and the roller 62. And the lever 66 is operated via the clutch wire 65, and the planting clutch is turned on and off. The cam 60 is driven by meshing a gear 67 fixed to the central axis of the motor 58 and teeth formed on the outer periphery of the cam 67, and by driving the motor 58, the above-described path is used. The planting clutch is controlled on and off. The motor 58, the cam 60, the arm 63, the clutch wire 65, and the like constitute the stopping means of the present embodiment.
[0032]
As described above, the shifting operation of the moving speed of the seedling table 27 is performed by engaging the slide key 42 attached to the key groove of the transmission shaft 37 and the specific transmission gear 38 that rotates freely. In general, since all the key grooves of the transmission gear 38 coincide with each other at the moving end of the seedling table 27, if the seedling table 27 can be accurately stopped at the moving end, the seedling table 27 shift operations can be easily performed.
[0033]
Next, in the present embodiment, the detection means includes the longitudinal feeding means 11 that conveys the seedlings of the seedling placing portion 27a from the upper side to the lower side based on the movement of the seedling placing stand 27 to the moving end in the moving direction. By driving, the moving position of the seedling placing stand 27 is detected.
[0034]
In FIG. 7, for example, when the seedling support 27 is moved to the left end or right end position, the vertical feed lever 50 provided on the seedling support 27 and the arm 48 provided on the end of the screw shaft 32 are laterally moved. The longitudinal feed lever 50 is swung upward by the swinging arm 48 having the same direction position and the vertical feed belt 28 is rotated. The detection switch 52d detects the swing of the vertical feed lever 50. When the detection switch 52d is turned on, it is detected that the seedling table 27 has moved to the left and right moving ends.
[0035]
FIGS. 8A and 8B show an embodiment similar to the above. According to this embodiment, the seedling stage 27 is stopped when it reaches the moving end (for example, the left end).
[0036]
That is, the plate 68 is attached to the seedling stage 27 and the left end detection switch 69 is fixed on the planting case side. When the seedling stage 27 is folded, the seedling stage 27 is left with the left alignment switch 70 turned on. Is turned on by contacting the left end detection switch 69, and the planting clutch switch 71 is turned off to stop the seedling platform 27 at the left end. As described above, the seedling stage 27 can be accurately stopped at the left end position only by turning on the left alignment switch 70.
[0037]
Next, the operation will be described.
[0038]
When the seedlings are taken out from the seedling box and placed on the seedling stage 27 in the preparation stage of the planting work by the riding rice transplanter, the machine body is placed on the side in order to make the seedling stage 27 as close as possible to the base. And the seedling stage 27 is stopped at the moving end closer to the heel.
[0039]
In this case, when the planting portion 22 is raised about 30 cm from the ground, the hydraulic fixing lever is set to “fixed”, and the hydraulic / planting lever 20 is operated to the “planting” position, the screw shaft 32 rotates. The seedling stand 27 moves leftward or rightward. The rotation of the screw shaft 32 also rotates the cam 47 fixed to the end of the screw shaft 32, and the rotation of the cam 47 causes the arm 48 in contact with the cam 47 to intermittently swing. .
[0040]
For example, when the seedling stage 27 comes to the left end position, the position of the vertical feed lever 50 provided on the seedling stage 27 and the arm 48 coincide, and the vertical feed lever 50 is moved upward by the swinging arm 48. The vertical feed belt 28 is rotated and the seedling is fed. At the same time, the detection switch 52a for detecting the left end attached to the seedling table 27 is pushed by the swinging arm 48, and the motor 58 for controlling the rotation of the cam 60 in FIG. The planting clutch is disconnected.
[0041]
Thus, the rotation of the screw shaft 32 of the lateral feed system is also stopped, and the movement of the seedling stage 27 is stopped. In this state, the operator can take out the seedling from the seedling box and easily place the seedling on the seedling placing stand 27 stopped at the moving end. In addition, it can perform also in the right end and center position of the moving direction of the seedling stand 27 by selective operation.
[0042]
【The invention's effect】
As described above, according to the first aspect of the present invention, the planting case portion is provided with the detection means for detecting that the seedling platform has moved to a predetermined position in the moving direction, thereby providing the seedling placement. Since the moving position of the stand can be detected, for example, when the seedling stand moves to the left or right end or the center position, the operator is notified with a buzzer or the like, or the seedling stand is automatically stopped at that position. Can be .
[0043]
According to invention of Claim 2, when it detects that the seedling stand moved to the left-right movement end or center position of a moving direction, it has the stop means which stops the movement of a seedling stand automatically. The seedling platform can be accurately stopped at the left and right moving ends or at the center position .
[0044]
In addition, when the shift operation of the moving speed of the seedling platform is performed, for example, by engaging the slide key attached to the keyway of the transmission shaft and the specific gear selected from the idle gear group, In general, since all the key grooves of the transmission gear group coincide with each other at the moving end of the seedling platform, the above-described speed change operation can be easily performed if the seedling platform can be accurately stopped at the moving end. .
[0045]
According to the third aspect of the present invention, when the seedling stage is moved to the moving end, the vertical feeding means transports the seedling on the seedling placing part from the upper side to the lower side. As a result, it is possible to detect that the seedling stage has moved to the moving end.
[Brief description of the drawings]
FIG. 1 is a side view of a riding rice transplanter to which the present invention is applied.
FIG. 2 is a diagram showing a power transmission path of a planting unit.
3A is a cross-sectional front view showing an outline of a lateral feed drive mechanism, FIG. 3B is a side view thereof, and FIG. 3C is a side view of the lateral feed drive mechanism including a seedling stage.
FIG. 4 is a diagram showing the arrangement position of detection switches.
FIGS. 5A, 5B, and 5C are diagrams showing an embodiment of a circuit diagram for detecting a moving position of a seedling stage. FIGS.
FIG. 6 is a diagram illustrating a connection relationship between a hydraulic pressure / planting lever and a planting clutch;
FIG. 7 is a side view showing the relationship between the seedling table and the lateral feed drive mechanism.
FIGS. 8A and 8B are diagrams showing an embodiment in which the seedling stage is stopped when it reaches the left end from the right end.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Riding rice transplanter 11 Seedling vertical feed device 14 Traveling machine body 20 Hydraulics / planting lever 22 Planting part 27 Seedling stand 28 Vertical feed belt 35 Transmission mechanism part 46 Slide block 47 Cam 48 Arm 49 Shaft 50 Vertical feed lever 52a, 52b , 52c detection switch 57 CPU
58 Motor 59 Changeover switch 60 Cam

Claims (3)

A seedling placing base in which a plurality of seedling placing parts for placing seedlings are arranged in the moving direction, and a planting case part that is arranged below the corresponding seedling placing part and transplants seedlings with planting claws. In the transplanter
For the planting case part, detection means for detecting that the seedling stage has moved to the left and right ends and the center of the movement direction, and
Switching means for selectively switching detection of the left and right moving ends or the center position by the detection means;
Means for automatically stopping the seedling platform or sounding a buzzer when the detection unit detects the left and right moving ends or the center position of the seedling platform switched by the switching unit. Become,
A transplanter characterized by that. Based on the fact that the detection means has detected that the seedling stage has moved to the moving end or the center position in the moving direction, the detecting means includes a stopping means for automatically stopping the movement of the seedling stage.
The transplanter according to claim 1. The detection means for detecting the left and right moving ends drives a vertical feeding means for transporting the seedlings on the seedling placing portion from above to below based on the movement of the seedling placing base to the moving end in the moving direction. By detecting the movement position of the seedling platform,
The transplanter according to claim 1 or 2, characterized by the above.

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