JPH0229848Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a seedling transplanter, and more particularly to a seedling transplanter that maintains an accurate planting posture by maintaining a uniform pressure state, and has a simple structure that eliminates the need for conventional pressure work.

Traditionally, transplanting seedlings of onions and other crops involves preparing the field for planting by applying fertilizer, plowing several times with a tiller, and finally compacting the field with a pressure roller to create the optimal field conditions for planting seedlings. The need arose.

In fields that have been prepared in this manner, the following drawbacks have been encountered in planting using conventional transplanters.

FIG. 5 is a front view showing the planting work of this conventional example. In the illustration, a seedling planting device 2 that can be towed or self-propelled is provided on an agricultural mobile device 1 such as a tractor. These drive wheels 3, 3 have a shape narrower than the ridge width,
Further, the drive wheels 3, 3 having a narrow ground contact width are inserted between the ridges to perform the traveling operation.

For this reason, the weight of the machine is concentrated on the ground contact parts 4, 4 of the narrow drive wheels 3, 3, so that the ground contact parts 4, 4 dig deep into the ground, causing the drive wheels 3, 3 to
The soil is concentrated and compacted under the depression 5,
It sinks into 5. In addition, the soil on both sides of the driving wheels 3, 3 that are in contact with the ground flows into the recesses 5, 5 and forms slopes 6, 6, which deteriorates the suppression effect of the suppression wheels 7, 7 of the seedling planting device 2, etc. There are drawbacks.

In other words, in the illustrated case, the seedling planting device 2 is for planting in four rows, and the seedlings 8 near both outer recesses 5 and 5 constituted by the drive wheels 3 are affected by the suppression effect by the suppression wheels 7 due to less soil. As a result, some seedlings fall over or cannot be planted in the soil. In addition, even after planting, soil flows into the recess 5 due to rain and wind, causing a shortage of soil and seedlings 8.
may cause it to fall. Moreover, the ground in the recess 5 becomes hard, which has a negative effect on the growth of seedlings.

Furthermore, in FIG. 5, when the machine moves to a position to the left of the illustrated position, that is, to a position closer to the already transplanted seedling 8a, the recess 5 is formed by the narrow drive wheel 3. , the already transplanted seedling 8a also falls diagonally as shown,
It may be stepped on by the driving wheels 3.

The present invention was created in view of the above-mentioned drawbacks, and aims to provide a seedling transplanter that maintains accurate planting posture, eliminates the need for conventional taming work, and allows good seedling growth. That is, the present invention includes a running section that includes drive wheels, which are front wheels and rear wheels, and a crushing wheel and a seedling clamping device that are arranged behind the running section and to be pulled by the running section. In a seedling transplanter comprising a transplanting section, a pressing drive wheel that also serves as a pressing roller is provided on the driving axle of the traveling section, and the ground contact width of the pressing driving wheel is at least wider than the transplanting width of the seedlings. It is characterized by the fact that it is provided in

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
It can be roughly divided into 0 and 11.

First, the configuration of the running section 10 is such that an engine 13 and a transmission 14 are mounted on a frame 12, and V pulleys 17 and 18 are provided between the PTO shaft 15 of the engine 13 and the input shaft 16 of the transmission 14, respectively. The V-belt 19 is wrapped around the transmission device 20.
has been configured. Reference numeral 21 denotes a traveling clutch connected to this transmission device 20, which is configured to transmit power to the transmission device 20 intermittently. In addition, the traveling section 10 is provided with levers 22 and 23 for operation, and further includes a guide wheel 24 and an operating handle 2.
5, a side clutch 26, a front wheel 27, etc. are constructed, but since these constructions are not directly related to the present invention, their explanation will be omitted.

Next, we will explain the pressing drive wheels 29, 29 which also serve as conventional pressing rollers, which is the gist of the present invention.As shown in FIG.
are arranged on both the left and right sides of the transmission section 14 via the transmission section 14, and in front of the transplantation section 11.
It is attached and fixed to a wheel 31 provided through 0 and 30.

In this embodiment, four wide low-pressure tires 32 are used for the suppression drive wheels 29, 29, but the number is not limited, and it is preferable to use tires as wide as possible. is desirable, and the width L to be transplanted at one time is as shown in Figure 3.
It is sufficient if the ground contact widths l, l by the two suppression drive wheels 29, 29 are approximately the same width. Furthermore, it is desirable that the low-pressure tires 32 constituting the suppression drive wheels 29 be integrally connected without providing any intervals as shown in the figure.

Moreover, the tires used are not limited to the low-pressure tires 32, but may be ordinary tires, or may be a conventional pressure roller with protrusions formed on the contact surface to increase the driving force. Note that the specific method for fixing the low-pressure tire 32 is to insert a pin 35 into the hole of the hub 33 of the wheel 31 and tire 32 as shown in the figure, but any fixing method can be used.

On the other hand, as shown in FIGS. 1 and 2, the transplant unit 11 includes a plurality of (four in the figure) transplant devices 35, 3
5, . . . are attached to the ends of the frame 12. As is well known, each transplanting device 35 consists of a pair of left and right pressure wheels 36, 36, an opener 37, and a seedling holding device 38.
9 and feeds the seedlings 40 to the seedling holding device 38 for transplantation. The transplant unit 11 is not limited to this example, and may be a tape-type seedling transplant device in which seedlings are wrapped in tape or a cassette-type seedling transplant device.

Further, this transplanting device 35 is attached to a tool bar 42 connected to the frame 12 of the running section 10 by links 41, 41 in accordance with the width of the ridge. The hydraulic cylinder 28 provided between the frame 12 and the link 41 allows the vertical position of the transplant section 11 to be adjusted. 43, 43 are markers.

The seedling transplanting machine with the above configuration has its suppression drive wheel 2.
9 and 29 are located in front of the transplanting section 11 in the planting direction, and have a ground contact width that is approximately equal to or greater than the transplanting width of the seedlings, so that the weight of the entire seedling transplanter can be distributed. From this, it becomes possible to carry out compaction work using the compaction wheels 36, 36 in a uniform flat state over all the transplant widths necessary for transplanting the seedlings, and the seedlings 40
It is possible to maintain accurate planting posture, and the seedlings grow well.

In addition, since the pressing drive wheel 29 has a wide ground contact width, it does not intensively harden a part of the ground surface and form a recess, and the pressing is uniformly applied to the ground surface, improving the growth of seedlings. At the same time, the present invention aims to provide a seedling transplanter with a simple structure and great practical effects, such as eliminating the need for the conventional pressing rollers, making the conventional pressing work unnecessary, and reducing labor.

[Brief explanation of the drawing]

Fig. 1 is a side view of a seedling transplanter equipped with the present invention, Fig. 2 is a plan view of the same, Fig. 3 is an explanatory view showing the state of use, Fig. 4 is a partially cutaway explanatory view of the main parts, and Fig. 5 The figure is an explanatory diagram showing a transplanted state of a conventional example. 10... Traveling part, 11... Transplanting part, 29... Drive wheel for suppression.

Claims (1)

[Scope of utility model registration request] a running section comprising driving wheels that are front wheels and rear wheels;
In a seedling transplanter comprising a pressure wheel disposed behind the running section and towed by the pressure wheel, and a transplanting section equipped with a seedling clamping device, a pressure is applied to a driving axle of the running section. A seedling transplanting machine characterized by being provided with a pressing drive wheel that also serves as a roller, and the setting width of the pressing driving wheel is set at least wider than the transplanting width of the seedlings.