JPH0433702Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a planting device having a multi-row planting structure in which a plurality of planting cases provided in a planting section each drive and support planting claws.

When operating a device equipped with this type of unit clutch, if the operation is performed at any lateral position of the seedling stand, the cutting of the seedlings will be interrupted midway through at the leading edge of the seedling pine, resulting in an uneven level. The entire surface of the tip of the lever is not aligned, and while seedling harvesting is subsequently interrupted, the seedling pine may collapse or deform, making the next seedling harvesting uncertain and causing inconveniences such as missing plants. This was a contributing factor. In addition, even if seedling picking is interrupted due to unit clutch operation, the seedling platform moves horizontally, so when seedling picking is resumed, it is easy to match the last seedling picking position with the initial seedling picking position. When a part is left behind on the seedling collecting side of the seedling pine, it is necessary to stop the work, have the worker go down to the field, and remove the remaining part, and at the same time, it is necessary to remove the remaining part on the seedling collecting side of the seedling pine. When the seedling removal spot was located at the seedling removal port, seedlings were not removed, causing problems such as missing plants.

The present invention has been devised in view of the above points, and includes a planting unit clutch that stops the driving of the planting claws separately for each planting case, and also detects the end of left and right lateral movement of the seedling stand. By interlocking and connecting the unit clutch to the lateral feed end switch and making the unit clutch operable only when the seedling platform is positioned at the end of the lateral feed, the seedlings can be placed at any position on the seedling platform as described above. To provide a planting device for a rice transplanter that eliminates interruptions in harvesting and allows for accurate seedling collection regardless of whether or not the unit clutch is operated, and allows for good planting work without the occurrence of stock defects. This is what we are trying to provide.

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

Fig. 1 is a side view of the riding rice transplanter, and Fig. 2 is a plan view of the same.
4 is a bonnet that covers the engine 2; 5 is a transmission case that is connected to the rear end of the base frame 3; 6 is an axle case that is connected to both left and right sides of the rear end of the transmission case 5; 7 and 8 are parts for running in rice fields. 9 is a driver's seat, 10 is a steering handle, and 11 is a spare seedling stand.

Furthermore, numeral 12 in the figure is a planting section equipped with a seedling stand 13 for multi-row planting, a plurality of planting claws 14, etc.
5 and the planting case 17 via the guide rail 16
The planting claw 14 is attached to the planting case 17 via a planting arm 18 that is supported so as to be slidable left and right and can be moved by a crank, and a planting claw drive shaft 19. A main float 20 for leveling the planting surface, which is a sliding body, and left and right side floats 21, 21 are installed below the planting case 17, and the running section 1
A seedling platform 13 is connected to the planting section 12 via a three-point linkage mechanism 22 and a hydraulic cylinder 23 so as to be able to rise and fall freely, and the front and rear wheels 7 and 8 are driven and run at a substantially constant speed while at the same time sliding back and forth from side to side. The structure is such that one seedling is continuously taken out by a planting claw 14 and the seedling planting work is carried out in the field.

In addition, 24 is a side clutch pedal, 25 is a main clutch pedal, 26 is a main gear shift lever, and 27 is a planting part elevation lever.

As shown in FIG. 3, the planting claws 14 are connected to the three planting cases 1 fixedly supported by the planting drive case 28.
7, and the transmission pipes 29a, 29 are attached to the central planting case 17a.
The left and right planting cases 17 are fixedly supported via b.
Two planting nails 1 each on both left and right rear ends of b and 17c
4 and 14, and the drive case 28
One planting claw 14 is attached to a central planting case 17a that is integrally connected to the planting case 17a.

The drive case 28 includes an input drive shaft 33 having an input gear 30, a planting clutch 31, a multi-plate clutch 32, etc., and a transverse feed shaft 35 interlockingly connected to the drive shaft 33 via a gear change mechanism 34.
A cross-feeding rod 37 is integrally supported by a coupling body 36 into which the reciprocating screw groove 35a of the cross-feeding shaft 35 is fitted, and when the cross-feeding shaft 35 rotates, the cross-feeding rod 37
The seedling stand 13 is supported through brackets 38, 38 at both left and right ends of the seedling stand 13, and is configured to move back and forth from side to side.

On the other hand, planting cases 17a, 17b, 1 are interlocked and connected to the drive shaft 33 via a chain transmission mechanism 39.
Each transmission input shaft 40 of 7c has a safety clutch 41, and the planting cases 17a, 17b, 17
The input shaft 40 is interlocked and connected to the planting claw drive shaft 19 attached to the rear end side of c through a chain transmission mechanism 42, and the rotation of this input shaft 40 allows each planting to be attached to each drive shaft 19. The claw 14 is configured to be driven up and down.

As shown in FIG. 4, the planting cases 17a, 1
The input shaft 40 is connected to each drive shaft 19 of 7b and 17c.
Each of the clutches 43 is provided with a unit clutch 43 that connects and disconnects the driving force from the transmission mechanism 42 as appropriate, and the clutch 43 includes a fixed pawl clutch 45 loosely fitted to the drive shaft 19 to which the sprocket 44 of the transmission mechanism 42 is integrally fixed.
a movable pawl clutch 46 that is spline-fitted to the drive shaft 19; a clutch spring 47 that engages the movable pawl clutch 46 with the fixed pawl clutch 45 with its spring force; and an upper stop cam surface 48 of the movable pawl clutch 46. A solenoid 50 having a clutch disconnection actuator 49 brought into contact with the clutch as appropriate.
In the normal state, each pawl clutch 45, 46 is operated by the spring force of the clutch spring 47.
are in an engaged state, and the planting claw 14 is driven up and down by the driving force from the input shaft 40, while when the solenoid 50 is excited, the actuator 49 is projected and brought into contact with the cam surface 48, and is movable. By moving the pawl clutch 46 backward against the clutch spring 47, the engagement is released and the driving of the planting pawl 14 is stopped.

As shown in FIG. 3, the planting section 12 is provided with left and right lateral feed end switches 51, which detect when the seedling platform 13 reaches the left and right drive end positions through contact with the bracket 38. 52 are provided.

FIG. 5 shows an operating circuit for the unit clutch 43, in which each relay 5 applies a power source 55 via a key switch 53 and a release switch 54.
6, 57, 58, each planting case 17a, 17
The operating switches 59, 60, 61 of the unit clutch 43 provided in the unit clutches 59, 60, 61 are connected to the lateral feed end switches 51, 52, and the relays 56, 57, 58 are connected to the operation switches 59, 60, 61 of the unit clutch 43 provided in the Self-holding relay switches 56a, 57a, and 58a are connected, respectively. Then, the release switch 54 is connected to the relay 5.
6, 57, 58 relay switches 56b, 57
The solenoid 50, more specifically, each solenoid 50a, 50b, 50c provided in each case 17a, 17b, 17c, is connected via the solenoid 50b, 58b, and when the switch 51 or 52 is turned on, the operation switch 5 is turned on.
When the solenoid 9, 60, or 61 is on, the solenoid 50a or 50c is kept energized and the unit clutch 43 is respectively disengaged.

The present embodiment is configured as described above, and the wheels 7 and 8 are rolled to travel and move.
The seedling table 13 is slid back and forth from side to side, and the pine seedlings on the seedling table 13 are divided by the planting claws 14, taken out one by one, and planted one after another. The unit clutch 43 is disconnected and the planting claws 1 of the remaining planting cases 17a and 17c are removed.
In the case of planting three rows according to 4.
When the switch 60 is turned on, the lateral feed end switches 51 and 5 are turned on while the seedling table 13 is being driven.
2 are in the off state, the solenoid 5
0b is not energized and the unit clutch 43 continues the seedling picking operation using the planting claw without being in the cut state yet. When the seedling table 13 reaches the end of left-right movement and either the switch 51 or 52 detects this and turns on, the relay 57 is activated, the relay switch 57b is turned on, and the solenoid is turned on. 50b is energized and thereafter this energizing operation is maintained by self-holding by the relay switch 57a. When the solenoid 50b is energized, the actuator 49 is projected and the cam surface of the movable clutch 46 is 48, the pawl clutch 46 is moved backward against the spring force of the clutch spring 47 to disengage the fixed pawl clutch 45, that is, to disengage the unit clutch 43. At this time, the actuator 49 is also used to stop the movable pawl clutch 46 at a predetermined rotational position, thereby driving and stopping the planting pawl 14 at a fixed upper position.

In this way, when the unit clutches 43 provided in each of the cases 17a, 17b, and 17c are disconnected, they will not be in the disconnected state until the seedling platform 13 reaches the end position of left and right movement.
As a result, the seedling picking by the planting claws 14 at the leading edge of the seedling pine does not end in a step-like manner, but is always in full contact with the guide rail 15, which is a seedling removal plate, and the seedling picking is interrupted and the seedling pine disappears. This prevents deformation and deformation. In addition, when changing direction at the headland and moving back and forth within the field to perform planting work, the number of planting rows is reduced in the final step or one step before, and when changing direction at the headland. , drive only the planting section 12 with the wheels 7 and 8 of the traveling section 1 stopped, and selectively operate each switch 59, 60, 61,
At the end of the horizontal feed of the seedling table 13, each unit clutch 4 is
3... is selectively turned off to reduce the number of planting rows, and then restart the planting work.
From the ~61 operation until the unit clutch 43... is cut, seedlings will be dropped on the headland, but the seedlings can be effectively used for supplementary planting, and it is necessary to remove the remaining part of the seedling pine. Compared to conventional work, there is no need to go down to the field, and the number of planting rows can be easily adjusted. Furthermore, when performing planting work in deformed rice fields, etc., there may be times when it is desired to reduce the number of planting rows during the planting process, but in this case as well, by stopping traveling and operating only the planting section, The unit clutch can be operated and there are no spots where seedlings are not planted.

As is clear from the above embodiments, the present invention provides a multi-row planting structure in which a plurality of planting cases 17a, 17b, and 17c drive and support the planting claws 14, respectively. Attached case 17
A planting unit clutch 43 is provided for each of a, 17b, and 17c to be stopped separately.
The unit clutch 43 is interlocked and connected to the transverse feed end switches 51 and 52 which detect the end of the left and right transverse feed of No. 3, so that the unit clutch 43 can be operated only when the seedling platform 13 is positioned at the end of the transverse feed. Since it is a unit clutch 4
It is possible to eliminate the interruption of seedling picking at any position of the seedling stand 13 due to the cutting operation in step 3, and prevent the seedling pine from losing its shape or deformation when seedling picking is interrupted, and it is also good at the initial stage of restarting seedling picking. It has remarkable effects, such as being able to collect seedlings in advance and perform accurate planting without the occurrence of missing plants.

[Brief explanation of the drawing]

Fig. 1 is an overall side view of a riding rice transplanter showing one embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a partially enlarged plan view, Fig. 4 is an enlarged explanatory view of main parts, and Fig. 5 The figure is an electrical circuit diagram of the main parts. 13... Seedling stand, 14... Planting claw, 17a, 1
7b, 17c...Planting case, 43...Unit clutch, 51, 52...Transverse feed end switch.

Claims (1)

[Scope of utility model registration request] In a multi-row planting structure in which planting claws are driven and supported by a plurality of planting cases, a planting unit clutch is provided that stops the driving of the planting claws separately for each planting case, and a seedling mounting stand is provided. The unit clutch is interlocked and connected to a cross feed end switch that detects the end of the left and right cross feed, and the unit clutch is configured to be operable only when the seedling platform is positioned at the end of the cross feed. Machine planting device.