JPS602733Y2 - Auxiliary seedling feeding device for riding rice transplanters - Google Patents

Description

[Detailed description of the invention] The present invention allows the auxiliary seedling table mounted on the traveling body of a riding rice transplanter to move up and down only when it reaches the supply height to the main seedling table of the seedling planting device. This invention relates to an auxiliary seedling feeding device that can be tilted to feed auxiliary seedlings.

Generally, some riding rice transplanters are equipped with multiple tiers of auxiliary seedling mounting tables in order to place a large number of auxiliary seedlings. When automatically transferring and supplying auxiliary seedlings to the mounting table, each auxiliary seedling table is raised and lowered to match the raised main seedling table, and then tilted up and down and placed on the main seedling table. The tip of the auxiliary seedling table was inserted to supply the auxiliary seedlings to the main seedling table.
In the past, the raising/lowering and tilting operations of the auxiliary seedling table were operated separately, which resulted in the auxiliary seedling table being tilted up and down in a position that did not match the main seedling table, causing the auxiliary seedlings to fall off. This had the disadvantage that smooth feeding of auxiliary seedlings was not possible due to bending and bending.

The present invention was devised in view of the above-mentioned circumstances, and includes a lifting arm that can be raised and lowered freely via a lifting mechanism on a support member provided on the traveling aircraft body, and the lifting arm is equipped with S water. The tips of the upper and lower auxiliary seedling placement tables are slidably placed on the support rods of the upper and lower levels, which are horizontally constructed, while the rear ends of the auxiliary seedling placement tables are vertically swung via a hydraulic mechanism. The control lever of the hydraulic mechanism is interlocked and connected to the elevating mechanism, so that the hydraulic mechanism is actuated only when the elevating frame is at the upper or lower limit. By supplying auxiliary seedlings to the main seedling table, the operating lever can be operated only when the lifting frame is at the upper limit or lower limit position, and the hydraulic mechanism is activated to transfer the auxiliary seedlings from the auxiliary seedling table to the main seedling table. To provide an auxiliary seedling feeding device for a riding rice transplanter, which can reliably supply auxiliary seedlings to the seedlings and thereby perform smooth feeding work of auxiliary seedlings without causing the auxiliary seedlings to fall off.

The structure of the present invention will be explained with reference to an embodiment shown in the drawings. Reference numeral 1 denotes a traveling body of a riding rice transplanter, and a handle 2 and a driver's seat 3 are installed approximately in the center thereof.

4 is a seedling planting device attached to the rear end of the traveling body 1 so as to be able to rise and fall freely, and includes a seedling planting mechanism 4a similar to the conventional one, and a main body that is inclined backward and downward in order to supply seedlings to the seedling planting mechanism 4a. Seedling table 5
It is equipped with float 6, etc.

7 is a support frame fixed to the rear force of the driver's seat 3 of the traveling aircraft 1; 8 is a guide frame;
The upper end is fixed to the upper end side of the guide frame 8.

Reference numeral 9 denotes an elevating frame that moves up and down along the rear side of the guide frame 8, and the elevating frame 9 is driven via a hydraulic cylinder 10 so as to be able to move up and down.
The support frame 8 and the elevating frame 9 are erected in a rearwardly inclined manner.

Reference numeral 11 denotes a lower swing arm whose base end is pivoted near the upper end of the guide frame 8; 12 is an upper swing arm whose base end is pivoted near the upper end of the elevating frame 9; The intermediate portion of the movable arm 11 and the support frame 7 are connected via a hydraulic cylinder 13.

14.15 is a pipe member fixed to the tip of each of the swing arms 11, 12 and extending in the left-right direction; 16.17 is a support rod fixed to the middle part and the upper end of the lifting frame 9 and extending in the left-right horizontal direction. The base end of the lower auxiliary seedling mounting stand 18 is rotatably and detachably engaged with the lower pipe material 14 via a clip 19 fixed to the lower surface thereof, while the upper pipe material 15 The base end portion of the side auxiliary seedling mounting table 20 is rotatably and detachably engaged via a clip 21 fixed to the lower surface thereof, and each of these auxiliary seedling placing tables 18
, 20 are slidably placed on the support rods 16, 17.

In addition, when the lifting frame 9 is raised to the upper limit position, the lower auxiliary seedling mounting table 18 has its tip at an appropriate distance from the upper end of the main seedling mounting table 5 when the seedling planting device 4 is raised. As the hydraulic cylinder 13 expands, the swinging arm 11 rises and swings around the pivot point with the guide frame 8, and the lower auxiliary seedling mounting table 18 gradually moves around the support rod 16 as a fulcrum. While tilting backward, the support rod 16 is used as a guide to slide and tilt backward, and the auxiliary seedling P is supplied to the main seedling mounting table 5 by slidingly inserting it above the upper end of the main seedling mounting table 5 while overlapping. It is about to be transferred.

On the other hand, when the lifting frame 9 is lowered to the lower limit position, the lower surface of the lower base of the lower auxiliary seedling mounting table 20 touches the base end of the lower auxiliary seedling mounting table 18. The upper auxiliary seedling mounting table 20 tilts together with the lower auxiliary seedling mounting table by the swinging arm 11 which is in contact with the support rod 17 and swings by the extension of the hydraulic cylinder 13. The auxiliary seedlings P are slid backward and tilted using the guide as a guide, and are slid and inserted above the upper end of the main seedling placement table 5 while overlapping, so that the auxiliary seedlings P are supplied and transferred to the main seedling placement table 5. There is.

Reference numeral 22 denotes an actuating lever that constitutes the hydraulic mechanism 23 including the hydraulic cylinder 13. The middle part of the actuating lever 22 is rotatably pivoted to the traveling body 1 side, and the base end side is connected to the hydraulic mechanism 23. It is connected to a hydraulic valve 24 that communicates with the cylinder 13, and a base end of a regulating rod 25 is pivotally attached to an intermediate portion on the distal end side.

The tip of the regulating rod 25 is connected to the elevating frame 9.
When the lifting frame 9 is raised to the upper limit position, the lifting frame 9 is slidably inserted into the guide frame 8 at a position where it comes into sliding contact with the lower edge 9a of the lifting frame 9. An insertion hole 9b is formed into which the tip of the regulating rod 25 is inserted when it is lowered to the lower limit position.

Moreover, when the operating lever 22 is operated to the point where the tip of the regulating rod 25 can slide into contact with the lower edge 9a of the lifting frame 9 or can be inserted into the insertion hole 9b, the hydraulic valve 24 opens and the hydraulic cylinder 13 is extended and the lifting frame 9 is located at a position other than the upper limit or lower limit position, the tip of the regulating rod 25 comes into contact with the side edge of the lifting frame 9, so the hydraulic valve 24 remains open and the hydraulic cylinder 13 is regulated so that it does not operate.

In addition, in the figure, 26 is the operating lever of the hydraulic cylinder 10, 27
is a guide cylinder of the regulating rod 25 provided on the guide frame 8.

Next, the operation of the present invention constructed as described above will be explained.

When planting seedlings, as shown in Figure 1, each auxiliary seedling mounting table 18,
20 and the main seedling placement stand 5, and the traveling body 1 is run while lowering the seedling planting device 4 to such an extent that the float 6 slides on the rice field surface, the seedlings on the main seedling placement stand 5 are It is the same as the previous method that the planting mechanism 4a sequentially takes out unit plants and plants them on the rice field.

When the seedling planting work progresses and the number of seedlings on the main seedling platform 5 decreases to a predetermined amount, the main seedling platform 5 is replenished with auxiliary seedlings P. In this case, first, the traveling machine 1 is At the same time, the seedling planting operation is stopped, the horizontal movement position of the main seedling mounting table 5 is stopped at the same phase position as the auxiliary seedling placing table 18, 20, the seedling planting device 4 is raised to the highest position, and the operating lever is 22 to activate the hydraulic cylinder 13 and slide the lower auxiliary seedling mounting table 18 onto the upper end of the main seedling mounting table 5 so that it overlaps and then slidingly inserts it, the auxiliary seedlings P are supplied to the main seedling placing table 5. It will be transferred.

At this time, the actuating lever 22 can be inserted while the tip of the regulating rod 25 is in sliding contact with the lower edge 9a of the lifting frame 9 to operate the hydraulic valve 24 only when the lifting frame 9 has risen to the upper limit position. Because of this, the tip of the lower auxiliary seedling mounting table 18 will not tilt up and down below the main seedling mounting table 5, and therefore the lower auxiliary seedling placing table 18 will not fall off at all and the auxiliary seedlings P will be able to move smoothly. Seedlings can be supplied from the main seedling table to the main seedling table.

Further, when the elevating frame 9 has not been raised to the upper limit, the regulating rod 25 comes into contact with the side edge of the elevating frame 9 and is prevented from being inserted, so the hydraulic mechanism 23 does not operate.

Therefore, the seedling replenishment operation can be performed only after the lifting frame 9 has been raised to the upper limit by operating the operating lever 26, and there is no risk of the seedling replenishing operation being performed when the lifting frame 9 has not reached the upper limit.

Next, after restarting the seedling planting work, if the number of seedlings on the main seedling mounting table 5 decreases to a predetermined amount again, the seedling planting work is stopped and the seedling replenishment work is performed as described above. In this case, after operating the operating lever 26 to retract the hydraulic cylinder 10 and lowering the elevating frame 9 to the lower limit, the operating lever 2
2, the tip of the regulating rod 25 will move to the lifting frame 9.
is inserted into the insertion hole 9b, the hydraulic valve 24 becomes operable, the hydraulic cylinder 13 extends, and the upper auxiliary seedling mounting table 20 tilts together with the lower auxiliary seedling mounting table 18, and the raised seedling The auxiliary seedlings P are supplied and transferred onto the main seedling mounting table 5 of the attaching device 4.

At this time, if the elevating frame 9 has not descended sufficiently and has not descended to the lower limit, the tip of the regulating rod 25 will come into contact with the side edge of the elevating frame 9, so the hydraulic valve 24 will not operate, and therefore the elevating frame 9 is not lowered to the lower limit, the hydraulic mechanism 23 does not operate, so the upper auxiliary seedling table 20 is too high, and when replenishing seedlings, a stage is formed between it and the main seedling table 5, and the auxiliary seedlings are will not bend.

In short, the present invention has an elevating frame that can be raised and lowered freely via an elevating mechanism on a support member provided on a traveling aircraft body, and that the elevating frame has upper and lower support rods installed horizontally. The tips of the upper and lower auxiliary seedling mounting tables are slidably placed thereon, while the rear end of the auxiliary seedling mounting tables is formed to be vertically swingable via a hydraulic mechanism, and the hydraulic mechanism The operating lever is interlocked and connected to the elevating mechanism, and the hydraulic mechanism is actuated only when the elevating frame is at the upper or lower limit to supply auxiliary seedlings to the main seedling mounting table of the seedling planting device. Therefore, the operating lever can be operated only when the lifting frame is located at the upper limit or lower limit position, and the hydraulic mechanism can be operated to supply seedlings from the auxiliary seedling table to the main seedling table. Even if the auxiliary seedling table can be raised and lowered, when supplying auxiliary seedlings, it is possible to accidentally tilt the auxiliary seedling table up and down when it does not match the main seedling table, as in the past. There is no problem at all, and thus the auxiliary seedlings can be constantly and smoothly supplied without the auxiliary seedlings falling off or bending.

[Brief explanation of the drawing]

The drawings show an embodiment of the auxiliary seedling feeding device in a riding rice transplanter according to the present invention, in which Fig. 1 is an overall side view of the riding rice transplanter, and Figs. 2 and 3 show functions of main parts. Explanatory diagram,
FIG. 4 is an enlarged view of the main parts. In the figure, 1 is a traveling machine, 4 is a seedling planting device, 5 is a main seedling mounting stand, 8 is a guide frame, 9 is a lifting frame, 13 is a hydraulic cylinder, 18 is an auxiliary seedling placing stand on the lower stage, and 20 is on the upper stage. Auxiliary seedling mounting table, 22 is an operating lever, 23 is a hydraulic lever, P
are auxiliary seedlings.

Claims (1)

[Scope of utility model registration request] An elevating frame that can be raised and lowered via an elevating mechanism is erected on the support member provided on the traveling machine, and on the elevating frame, upper and lower auxiliary seedling mounting stands are installed on the upper and lower support rods installed to level the water. The tips of the auxiliary seedling mounting table are placed in a slidable manner, while the rear end of the auxiliary seedling placement table is formed to be vertically swingable via a hydraulic mechanism, and the operating lever of the hydraulic mechanism is connected to the lifting mechanism. A riding rice transplanter characterized in that the riding rice transplanter is preferably constructed so that auxiliary seedlings can be supplied to the main seedling mounting table of the seedling planting device by interlocking and connecting the lifting frame to operate the hydraulic mechanism only when the lifting frame is at the upper or lower limit. Auxiliary seedling feeding device.