JPH0432028Y2 - - Google Patents

Description

[Detailed explanation of the invention] "Industrial application field" This invention uses a planting claw to take out seedlings one by one from a seedling stand that is movably supported on a seedling take-out plate and to plant them in the field. Regarding the rice transplanter,
This invention relates to a seedling mounting device for a rice transplanter that adjusts the amount of vertical feed of seedlings on a seedling platform and the amount of vertical removal of seedlings by a planting claw.

"Prior Art" For example, Japanese Utility Model Publication No. 54-27293 is known as a means for adjusting the vertical feed amount and vertical take-out amount of seedlings.

``Problem that the invention aims to solve'' Conventionally, the relative relationship between the vertical feed amount and the vertical take-out amount was always a constant ratio, so it was necessary to change the feed amount and take-out amount of the seedlings relative to each other so that they correspond to each other appropriately. There were problems such as difficulty in

``Means for Solving the Problems'' Therefore, the present invention is based on a seedling tray that supports a seedling take-out plate through a seedling receiving plate so as to be able to slide back and forth from side to side. In this structure, a seedling vertical feed amount adjusting member is provided on the seedling receiving plate to regulate the amount of swinging of the driven cam to adjust the vertical feed amount of the seedlings. A seedling vertical take-out amount adjusting member that changes the take-out position of the board is provided in the planting case, and these vertical seedling feed amount and seedling vertical take-out amount adjusting members are interlocked and connected to an adjustment lever so that the relative installation position can be adjusted. By adjusting the amount of vertical seedling feed and the amount of seedling removal by operating the adjustment lever provided at a position that can be operated by the operator,
It is possible to mutually adjust the vertical feed amount and vertical take-out amount of seedlings, and even if there is a difference between the feed amount and take-out amount under various conditions, the difference between the feed amount and take-out amount can be adjusted. It is possible to easily correct the seedlings and take out the appropriate seedlings, and since the feed amount and take-out amount can be adjusted by operating the lever, this adjustment operation can be easily and conveniently done by the operator while sitting in the driver's seat. It is extremely easy to use and has excellent workability.

"Embodiments" Hereinafter, embodiments 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. In the figure, 1 is a running section on which a worker rides, 2 is an engine mounted on the base frame 3, and 4 is the engine 2. 5 is a transmission case connected to the rear end of the base frame 3; 6 is an axle case connected to both left and right rear ends of the transmission case 5; 7 and 8 are front and rear wheels for running in paddy fields; 9 is the driver's seat, 10 is the steering wheel, 1
1 is a preliminary seedling stand.

Further, reference 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. The planting is carried out in the planting case 17 through the take-out plate 15 and the guide rail 16, which supports the planting case 17 so as to be able to slide back and forth in the left and right directions, and through the planting arm 18 and the planting claw drive shaft 19, which are moved by a crank. Attach the claw 14. The planting case 17
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, and the planting section 12 is connected to the traveling section 1 via a three-point link mechanism 22 and a hydraulic cylinder 23. The front and rear wheels 7 and 8 are connected so as to be able to rise and fall, and the front and rear wheels 7 and 8 are driven and run at a substantially constant speed, and at the same time, one seedling is continuously placed by a planting claw 14 from a seedling platform 13 that slides back and forth from side to side. It is configured so that it can be taken out and used for planting seedlings in the field.

Note that 24 is a side clutch pedal, 25 is a main clutch pedal, 26 is a main shift lever, and 27 is a planting lift lever.

As shown in FIGS. 3 and 4, the seedling stand 13
A vertical feed shaft 28 is installed horizontally on the lower surface near the lower end of the slope, and when the seedling platform 13 reaches the end of left-right movement, the star feeds the pine seedlings on the upper surface of the seedling platform 13 intermittently to the lower seedling take-out section. The wheel 29 is
8 with fixed shaft support at equal intervals, and the star foil 2
The upper part of the star foil 29 is formed so as to partially protrude from the upper surface of the seedling stand 13, and the upper part of the star foil 29 is inserted into the lower surface of the pine seedling. In addition, a vertical feed drive cam 31 is pivotally supported on the planting case 17 via a rotating shaft 30.
A vertical feed driven cam 32 is attached to the middle of the vertical feed shaft 28, and a return spring 33 is biased to the driven cam 32, so that the drive cam 31, which constantly rotates at the end of the horizontal movement of the seedling stand 13, is attached to the vertical feed shaft 28. Followed cam 3
2 are brought into contact with each other and rotated at a certain angle in one direction via a one-way clutch, the star foil 29 is configured to move the pine seedlings downward to the seedling take-out portion at the lower end of the slope of the seedling stand 13. .

Further, the guide rail portion 15 of the seedling take-out plate 15
A cam stopper 36 of the driven cam 32, which is a member for adjusting the vertical feed amount of seedlings, is installed on the seedling receiving plate 35 loosely fitted to the seedling receiving plate 35 via the seedling receiving plate shoe 34 via a shaft 37 and a bracket 38. When the stopper 36 is connected to a seedling retrieval adjustment lever 40 via a wire 39, and the position of the stopper 36 is varied by operating the lever 40, which is provided at a position that can be operated by the operator in the driver's seat 9, the drive cam 3
The amount of vertical feed of the seedlings on the seedling platform 13 is adjusted to increase or decrease by increasing or decreasing the contact time length of the driven cam 32 with respect to the seedling table 13.

Further, the guide rail portion 15 of the seedling take-out plate 15
An adjustment arm 42, which is a member for adjusting the amount of vertical take-out of seedlings, is integrally fixed to a through a bolt 41, and the base end of this adjustment arm 42 is swingably attached to the swing fulcrum shaft 43 of the planting case 17. At the same time, an adjustment arm 42 is attached to the lever 40 via an adjustment rod 44.
When the vertical feed amount of the seedlings is varied by operating the lever 40, the seedling take-out plate 15 is oscillated about the fulcrum shaft 43, and the rods are connected to each other so that the length can be freely adjusted. By changing the relative positional relationship of the seedling take-out plates 15, the amount of vertical take-out of seedlings by the planting claws 14 can also be varied.

The present embodiment is constructed as described above, and the cam stopper 36 is located at the position shown by the solid line in FIG. When it is desired to increase the amount of seedlings taken out vertically, the lever 40 is rotated in the direction of the solid line arrow in the figure, and the rod 44 moves the seedling takeout plate 15 around the fulcrum shaft 43 to the position shown in the imaginary line in the figure. As a result of the seedling take-out plate 15 changing to such a position, the difference in relative position with the planting claw 14 increases, and the amount of vertical take-out of seedlings increases. Also, at this time, as the wire 39 is loosened, the stopper 36 of the cam 32 is moved against the spring 33.
The action part of the driven cam 32 is moved backward by the force and the driving cam 31
When the driven cam 32 is close to the side, the contact time length of the driven cam 32 for one rotation of the drive cam 31, that is, the time ratio during which the driven cam 32 is in contact becomes large, and the rotation length of the star foil 29 by the cam 32 becomes large. The vertical feed amount also increases proportionally at the same time.

In this way, when the amount of vertical take-out of seedlings is adjusted to increase or decrease by operating the lever 40, the amount of vertical feed of the seedlings is also adjusted at the same time, and the length of the rod 44 is adjusted to increase or decrease the amount of seedlings taken out vertically. The amount of feed and the amount of seedlings taken out are mutually adjusted, and the appropriate amount of seedlings are always supplied to the seedling taking part of the seedling table 13 according to the amount of seedlings taken out, resulting in good planting without the occurrence of missing plants. work is done.

"Effects of the Invention" As is clear from the above embodiments, the present invention provides a seedling platform 13 that is supported by a seedling take-out plate 15 through a seedling receiving plate 35 so as to be able to slide back and forth from side to side. In a structure in which seedlings are vertically fed by the swinging action of a driven cam 32, a seedling vertical feed amount adjusting member 3 regulates the swinging amount of the driven cam 32 to adjust the vertical feed amount of the seedlings.
6 is provided on the seedling receiving plate 35, while a seedling vertical take-out amount adjusting member 42 for varying the take-out position of the seedling take-out plate 15 with respect to the seedling platform 13 is provided on the planting case 17,
These seedling vertical feed amount and seedling vertical take-out amount adjustment members 3
Adjustment lever 4 allows relative mounting position adjustment of 6 and 42.
The amount of vertical feeding of seedlings and the amount of taking out of seedlings are adjusted by operating the adjustment lever 40, which is connected to the control lever 40 in a position that can be operated by the operator in the driver's seat 9. It is possible to mutually adjust the vertical take-out amount, and even if there is a difference between the feed amount and take-out amount under various conditions, the difference between the feed amount and take-out amount can be easily corrected. This makes it possible to take out the appropriate seedlings, and since the feed amount and take-out amount can be adjusted by operating the lever 40, this adjustment operation can be easily and conveniently performed by the operator while sitting in the driver's seat, making it extremely workable. It has remarkable effects, such as being able to excel.

[Brief explanation of the drawing]

FIG. 1 is an overall side view of a rice transplanter showing an embodiment of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is an enlarged side view of a main part, and FIG. 4 is an explanatory view of the same part. 13... Seedling stand, 15... Seedling take-out board, 17...
...Planting case, 32...Followed cam, 35...Seedling receiving plate, 36...Cam stopper (seedling vertical feed amount adjustment member), 40...Adjustment lever, 42...Adjustment arm (seedling vertical removal amount adjustment member) .

Claims (1)

[Scope of utility model registration request] In the structure in which the pine seedlings on the seedling platform 13 are vertically fed by the swinging action of the driven cam 32 to the seedling platform 13 which is supported on the seedling take-out plate 15 through the seedling receiving plate 35 so as to be slidable in the left and right directions. A seedling vertical feed amount adjustment member 36 that regulates the amount of swing of the driven cam 32 to adjust the vertical feed amount of the seedlings is provided on the seedling receiving plate 35.
3, a seedling vertical take-out amount adjustment member 42 for varying the take-out position of the seedling take-out plate 15 is provided in the planting case 17, and the relative mounting positions of these seedling vertical feed amount and seedling vertical take-out amount adjustment members 36 and 42 can be adjusted. It is characterized by being configured such that the amount of vertical seedling feed and the amount of seedlings taken out can be adjusted by operating the adjustment lever 40, which is interlocked and connected to the adjustment lever 40 and is provided at a position that can be operated by the operator in the driver's seat 9. Seedling loading device for rice transplanter.