JPS6238493Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a seedling feeding device for a transplanter, and is designed to reliably feed seedlings one by one from the seedling stand to the planting device in synchronization with the planting operation of the planting device. The main purpose of this system is to make it easier for the operator to feed seedlings, especially when dealing with potted seedlings.

Transplanting machines equipped with a furrower, a planter, and a potter in that order are known and have recently become popular as an aid to the mechanization of agricultural work.

Whether the transplanter is self-propelled, hand-propelled or tractor-mounted, it is important to feed the seedlings one by one into the transplanter, without damaging the seedlings. be.

Therefore, in the past, it was customary for an operator or an assistant to manually feed the seedlings into the planting device, but in this case, the seedling feeding posture of the operator, etc. would be in a so-called stooped position because the planting device was on the ground side. It was very tiring, and in some cases, so-called forgetting to supply stock caused stock shortages.

This invention was devised in view of the above-mentioned actual situation.
By retaining a large amount of seedlings on a seedling platform installed at the top of the machine frame, and supplying the retained seedlings to the planting device via an inclined chute in synchronization with the planting operation, The operator and others are able to transfer the seedlings on the seedling platform to the inclined chute, and the transfer operation can be done easily with the correct posture. A seedling stand is provided at the top of the frame, a planting device is provided at the bottom of the machine frame, an inclined chute is provided that connects the seedling placing stand and the planting device, and a plurality of chutes are installed in the middle of the inclined chute at intervals in the longitudinal direction of the chute. A stopper is provided, and an interlocking body is provided that alternately moves the stopper into and out of the inclined chute in synchronization with the planting operation of the planting device.

Hereinafter, a case in which an embodiment of the present invention is applied to a self-propelled wheel-type riding transplanter will be described in detail, but the seedling feeding device of the present invention can also be applied to a tractor-mounted type, a hand-push type, etc. transplanter.

In FIGS. 1, 2, and 3, which illustrate the overall configuration of a self-propelled wheeled passenger transplanter 1, reference numeral 2 denotes a vehicle body (machine frame), on which an engine 3 is mounted at the front. Reference numeral 4 indicates a pair of left and right front wheels, and 5 indicates a pair of left and right rear wheels. In the illustrated example, the front wheel 4 is a driving wheel, and the rear wheel 5 is a steering wheel.

That is, the left and right front wheels 4 are driven together by receiving the rotational power generated by the engine 3, and can be driven independently.

In this embodiment, the engine 3 is provided with a pair of left and right transmission devices 7 that incorporate a winding transmission body in a transmission block 6 that incorporates a main clutch, a pair of left and right steering clutches, gears and other appropriate transmissions. The pair of front wheels are driven together and can be switched on and off individually. That is, in Figure 2,
8 is a main clutch lever, 9 is a pair of left and right steering clutch levers, and 10 is a gear shift lever.The main clutch can be engaged and disengaged by operating the main clutch lever 8, and the pair of left and right transmission devices 7 are connected via a transmission as appropriate. The front wheels 4 are both interlocked, and the pair of left and right front wheels 4 can be individually engaged/disconnected via one of the transmission devices 7 by engaging and disengaging the steering clutch by operating the steering clutch lever 9.

Reference numeral 11 denotes a rear wheel support, which is inserted into a vertical support tube 12 provided at the center of the vehicle width at the rear of the vehicle body 2 so that it can be adjusted and fixed in the height direction by, for example, a screw structure, and can be relatively rotated. It is rotatably provided via caster supports 14 provided at both ends of the horizontal rod 13.

Reference numeral 15 denotes a transplanting device, which is provided at the lower part of the vehicle body between the front wheels 4 and the rear wheels 5, and is constructed by installing a trencher 16, a planting device 17, and a soil covering device 18 in that order from the front to the rear. There is.

Reference numeral 19 denotes an adjusting body, which allows the pair of left and right front wheels 4 to be swung and fixed with respect to the vehicle body 2 in the forward and backward traveling direction. It is made up of a telescopic cylinder pivotally connected between an arm 20 provided on the transmission device 7 side and the vehicle body 2 side, and the engine 3
The oil sent from the hydraulic pump 21 driven by the hydraulic pump 21 can be expanded and contracted by switching the control valve device 22.

Each of the transmission devices 7 is held at a downward slope in the front, and the front wheel 2 is mounted on the extending end of the transmission device 7 about a horizontal axis.

Reference numeral 23 denotes a seat device, which includes steps 24 provided on both sides of the vehicle body 2 and a driver's seat 25 provided on the rear upper surface of the vehicle body 2 so as to be movable back and forth. A foot-operated operating tool 2 that is interlocked and connected via an interlocking body 26
7 as a pedal 28, and a main clutch operating lever 2 as an operating tool 27 provided on the left side of the driver's seat 25.
9 and a shift lever 30 and an operating lever 31 for controlling the adjusting body 19 as an operating tool 27 provided on the right side of the driver's seat 25. The operating lever 31 for the adjusting body is connected to a Bowden wire via a relay lever 32. ,
The control valve device 22 is controlled by an interlocking body 33 such as a rod.
linked to. The main clutch lever 8 and its operating lever 29 are connected to an interlocking body 34 shown by Bowden wire.
The speed change lever 10 and its operating lever 30 are interlocked and connected by a rod-shaped interlocking body 35.

Further, in this embodiment, a seedling platform 36 is provided on the vehicle body 2 in front of the driver's seat 25, and the seedling platform 3
The seedlings above 6, for example, seedlings in pots with soil, can be supplied to the planting device 17 via a seedling supply device 37 according to the present invention, which will be described later.

Reference numeral 38 denotes a manual handle device, in which a pair of grip handles 39 are provided at the rear of the vehicle body 2 in a rearwardly extending manner, and a grip lever 40 as an operating tool is pivotally supported on each of the handles 39.
Each of these is interlocked with the steering clutch lever 9 via the steering clutch pedal 28 and an operation interlocking body 41 such as a Bowden wire.

The details of each part will be explained with reference to FIGS. 4 to 8 as well as FIGS. 1, 2, and 3.

A transmission block with a clutch housing connected to the engine 3, that is, a transmission case 6, is provided downwardly at the rear, and has a transverse transmission case 42 at the rear end.
A transmission device 7 is swingably provided at both ends of the horizontal case 42 via a bearing device. Further, a fuel tank 43 that also serves as a bonnet is installed over the engine 3, and its eaves cover the transmission case 6 as well as the hydraulic pump 21 provided on the upper part of the transmission case 6.

The vehicle body 2 is made up of a pair of left and right elongated cylinders, which are connected to the transverse transmission case 42 and extend rearward parallel to each other.

A transplant device 15 provided in the lower abdomen of this vehicle body 2
A frame 46 is installed on support stays 44 and 45 installed in a pair on the left and right at the front and rear of the vehicle body 2 so as to be adjustable and fixed in the height direction, and a planter 17 is attached to the frame 46.
The soil covering device 18 is attached rotatably around a horizontal axis via bearing devices 47, 48, and the trencher 16 is attached to the front of the planting device 17 via a stay 49 attached to the vehicle body 2 with a bullet (not shown). It is biased in the direction of ground contact. In addition, 50 is a mounting hole for adjusting the height of the frame 46, and 51 is a fender for an earthen cover provided on the step.

In this embodiment, the groove cutter 16 is disk-shaped,
It is mounted around an inclined horizontal axis, and is arranged in an enlarged rearward manner as shown in FIG.

A disk-shaped earth-covering vessel 18 is rotatably mounted on a shaft behind the trencher 16 via a bearing device 48 so as to be rotatable around an inclined horizontal axis.As shown in FIGS. 2 and 3, the pair of earth-covering vessels 18 are They are placed opposite each other so that they become narrower towards the ground.

A planting device 17 is provided between the furrowing device 16 and the soil covering device 18. A seedling clipping body 53 is provided, and the seedling clipping body 53 is
A planting arm 54 is provided which cooperates with the soil covering device 18 in the direction of the arrow in FIG.
It consists of a sprocket provided at 48 and a chain wound between the sprockets, and symbol A in FIG. 5 is the seedling pinching position, and B is the seedling release position. Note that it is desirable that the relative height positions of the trencher 16 and the planter 17 be adjustable. For example, the rear part of the support stay 46A shown in FIG. It is installed so that it can be adjusted and fixed in the height direction.

The seedling platform 36 is rotatable around the vertical axis via a support tube 57 on a pedestal 56 provided on the vehicle body 2, and supports so-called potted seedlings directly or via a seedling box.
8 is the fall hole.

The seedling supply device 37 includes an inclined chute 59 that communicates the drop hole 58 with the seedling clamping position A, and a shutter (stopper) device 60 is provided in the middle of the inclined chute 59 in the height direction.

As shown in FIG. 7 and FIG.
It is configured to work in synchronization with 6.

Reference numeral 61 denotes a seedling receiving stopper, and a support shaft 63 facing the direction of propagation is fixed to a bracket 62 fixed at the middle bottom of the inclined chute 59, and the cylindrical boss portion 64 of the two long and short stoppers 61 is fixed to the support shaft 63. The long and short arms 65 and 66 of the stopper 61 are rotatably fitted into the sleeve.
Curved rod-shaped receivers 67 and 68 fixed at the tip can be alternately retracted and retracted from a window hole 69 provided in the inclined chute 59, and substantially the receivers 67 and 68
A plurality of these are provided in the middle of the inclined chute 59 at intervals in the longitudinal direction of the chute.

That is, when one receiver 67 enters the inclined chute 59 and receives the seedling C, the other receiver 68
is retracted from the chute 59, and when the other receiver 68 enters, one receiver 67 is retracted,
This moves in synchronization with the planting operations of the potter 18 and the potter 16.

For this reason, in this embodiment, kick-out bodies 70 are detachably provided at predetermined intervals in the circumferential direction of the earth-covering vessel 18, and the first relay arm is biased in the direction of engagement with the kick-out bodies 70 by a bomb 71. 72 on the frame 46,
The relay arm 72 and the second relay arm 73 are interlocked and connected by a linking rod 74 that can be expanded and fixed, and the second relay arm 73 is
Each of the bifurcated portions of the relay arm 73 and each arm 75, 76 of the stopper 61 are interlocked and connected by linking rods 77, 78 which can be extended and fixed. In other words, if the receiver 67 is protruding from the window hole 69 when the solid line in FIG.
0 begins to kick the first relay arm 72 against the ammunition 71, the first connecting rod 74 moves to the right in the figure, and pushes and pulls the connecting rods 77 and 78 via the second relay arm 73 to receive the ball. 68 enters through the window hole 69, and the receiver 67 is retracted, and when the kicking body 70 finishes kicking out, it is reversely operated by the bomb 71.
Here, the kicking body 70, the first relay arm 72, the connecting rod 74, etc. constitute the interlocking body 84.

The steering clutch pedal 28 is rotatably supported on the vehicle body 2 by a horizontal shaft 79, and when depressed, it is possible to individually disengage the steering clutch lever 9, and each grasping of the pedal 28 and the manual handle device 38 is performed. Lever 40 is interlocked.

Main clutch operation lever 29, gear shift operation lever 3
0 and the adjusting body operating lever 31 are provided on the side of the driver's seat 25 so as to be movable back and forth, 80 and 81 are guide plates thereof, and the lever support shaft 82 has a common axis as shown in FIG. The height of the rear wheel support 11 can be adjusted using a handle 83.

In the above embodiment, the work is performed by straddling the ridge D shown in FIG.
While operating the first operating tool 27, the block seedlings on the seedling platform 36 are fed into the chute 59 from the drop hole 58 while sitting. At this time, feeding becomes easy because the seedling mounting table 36 is in the form of a rotating turntable.

As the transplanter 1 moves forward, the trencher 16 forms grooves in the longitudinal direction of the ridge D on the ridge D, and the planter 17, which rotates in synchronization with the soil coverr 18, also drives the stopper 61 of the seedling supply device 37 in synchronization. Once the seedling C is suspended on the inclined chute 59, the seedling C is grabbed at position A in Figure 5 by releasing the hold, and dropped into the groove with the root of the seedling facing down at position B in Figure 5. The subsequent soil covering device 18 covers the soil.

That is, the driver transfers the seedlings on the seedling platform 36 to the inclined chute 59 while maintaining the driving position, and the transferred seedlings C are transferred to the inclined chute 59 in the second embodiment.
By alternately moving in and out the receivers 67 and 68 of the stoppers 61 provided separately, it is possible to feed one plant while holding it in synchronization with the planting operation of the planter 17, and the continuous rods 74, etc. By adjusting the axial length or link ratio of the interlocking body 84, it is possible to quickly adjust the planting speed of the planting device 17.

When the transplanting work using the transplanting machine of this embodiment is performed on a slope, the work can be carried out under an appropriate wheelbase by adjusting the wheelbase between the front wheel 4 and the rear wheel 5 through the expansion and contraction of the adjustment body 19. Along with this wheelbase adjustment, the height of the transplant device 15 above the ground is adjusted. Furthermore, even if the ridge D is slightly bent, the steering clutch lever 9 will not move because the rear wheel 5 is a caster wheel and its support 11 rotates around the vertical axis at the center of the vehicle width. It is possible to work along the ridge D through the steering operation. That is, the drive (traction) of the front wheels 4
This allows the rear wheels 5 to be steered.

Next, when turning on a headland, the driver switches the valve device 22 to extend the adjustment body 19 in this example, then steps down from the driver's seat 25 and uses the manual handle device 38. hold, and
The gripping lever 40 allows the steering flap lever 9 to be turned while being remotely controlled.

That is, the extension of the adjusting body 19 causes the front wheel 4 to swing rearward as indicated by the chain line W in FIG. It rotates around the ground, and after turning, it can return to its previous position and perform the same work as before.

In the present invention, a seedling mounting stand 36 is provided on the upper part of the machine frame 2,
A planting device 17 is provided at the bottom of the machine frame 2, and a seedling stand 36 is installed.
A plurality of stoppers 61 are provided in the middle of the inclined chute 59 at intervals in the longitudinal direction of the chute, and the inclined chute 59 is connected in synchronization with the planting operation of the planting device 17. Since the seedling feeding device for a transplanter is characterized in that an interlocking body 84 is provided for alternately moving the stopper 61 in and out of the device, it has the following advantages.

A seedling stand 36 is provided on the top of the vehicle body (machine frame) 2,
Since the planting device 17 installed at the bottom of the machine frame 2 and the seedling stand 36 are connected by an inclined chute 59, the operator only needs to transfer the seedlings from the seedling stand 36 to the chute 59, The working posture for handing over to the appendix 17 can be carried out without difficulty. Therefore, the workers are less fatigued and there is less risk of stock shortages.

In addition, the plurality of stoppers 61 provided in the middle of the inclined chute 59 alternately move in and out of the chute 59 in synchronization with the planting operation. ), the seedlings can be sent without causing excessive damage to the seedlings.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view of a self-propelled wheel-type transplanter as an example of adopting the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a rear view of the same, and Fig. 4 is a side view of the front half of the transplanter. , FIG. 5 is a side view showing the entire embodiment of the present invention at the middle part of the transplanter, and FIG. 6 is a side view of the rear half of the transplanter.
FIG. 7 is a detailed view showing the operation of the embodiment of the present invention, and FIG. 8 is a detailed view of the stopper portion. 1... Transplanter, 2... Machine frame, 17... Planter,
36... Seedling stand, 59... Inclined chute, 61
... Stoppa, 84 ... Interlocking body.

Claims (1)

[Scope of utility model registration request] A seedling stand 36 is provided at the top of the machine frame 2, a planting device 17 is provided at the bottom of the machine frame 2, an inclined chute 59 is provided that communicates the seedling platform 36 and the planting device 17, and the inclined chute 59 A plurality of stoppers 61 are provided at intervals in the longitudinal direction of the chute, and an interlocking body 84 is provided that alternately moves the stoppers 61 into and out of the inclined chute 59 in synchronization with the planting operation of the planting device 17. Features: Seedling feeding device for transplanters.