JPS5849063Y2 - Riding rice transplanter - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a riding rice transplanter comprising a traveling vehicle body (including one using a tractor) having paddy wheels for traveling, and a planting device attached to the front or rear part.

In recent years, riding rice transplanters have been developed in order to quickly transplant rice in relatively large fields without the need for workers to walk directly inside the field.

As the running body of such a riding rice transplanter, a specially developed running body or an existing agricultural tractor is used, and a planting device for multi-row planting is attached to the front or rear of this running body. A riding rice transplanter is constructed by removably installing the rice transplanter.

However, the conventionally constructed riding rice transplanter has the disadvantage that it is extremely troublesome to remove the planting device from the running vehicle body, so-called main machine, and to transport and store the device.

In particular, in the case of a planting device for multi-row planting, the total width of the planting section is extremely wide, which causes considerable trouble when transporting the device.

In addition, since large-scale planting equipment for multi-row planting has a structure that is elongated from side to side, it is desirable to install self-propelled casters on the front and rear sides of the planting equipment. Since the axles were made to protrude from the front and back, and the casters were attached to and removed from the axles, as is well known, after rice planting work, a large amount of mud adhered to the transmission case and the axles, and as a result, the bearings of the axles and casters were damaged. There is a risk of damage due to muddy soil, and to prevent this, the structure is complicated and
Since the transmission case of the planting device was connected to the hitch of the traveling vehicle body for towing, the distance between the traveling vehicle body and the planting device was long, making movement on uneven farm roads dangerous.
Moreover, since the transmission case of the planting device is installed below the large-area seedling stand, it is difficult to support the casters with a short axle, and the axle must be made long. The disadvantage is that each connection operation is extremely troublesome.

In particular, it is necessary to support a float (traveling sliding body) below the transmission case of the planting device, so the distance between the casks before and after the transmission case is considerably larger than the front and rear length of the float.
By being configured to prevent the float swinging back and forth from coming into equal contact with the caster, the distance between the casters before and after the transmission case becomes large, which is disadvantageous in that the bearing structure of the caster becomes complicated.

The present invention solves the above-mentioned conventional drawbacks, and has a structure in which a planting device is connected to a traveling vehicle body via an elevating link so that it can be attached and detached and can be raised and lowered. Self-propelled casters are attached to the front and rear sides of the cask near the corners, and the cask is supported so that it can be raised and lowered by swinging in the longitudinal direction of the aircraft. A hitch is fixed to the side of the planting device, and when the planting device is removed, this can be connected to the traveling vehicle body via the hitch, so that it is not restricted by the float at a position away from the transmission case of the planting device. The self-propelled casters can be arbitrarily disposed, and the float can be easily mounted and supported on the transmission case without being restricted by the spacing between the front and rear mounting of the casters, and compared to the conventional method, the casters can be mounted in different positions. In addition, it is possible to eliminate restrictions on the size and shape of the float, so that it can be configured with desired specifications, and the casters can be swung in the front-rear direction of the machine, which is approximately perpendicular to the pulling direction (left-right direction of the machine) of the planting device using casters. By raising and lowering the planter, the planting device can be reliably suspended and supported by the casters with a simple support structure, and the risk of the casters falling sideways during movement can be almost eliminated.
In addition, by connecting and towing the outer end of either the left or right side of the planting device to the traveling vehicle body using the pitch, the planting device can be brought close to the traveling vehicle body at a short connection interval and moved stably, To provide a riding rice transplanter which can safely move the planting device by eliminating skids even on rough roads with many irregularities and slopes, and can efficiently transport the planting device by preventing rollover accidents and the like.

Below, we will explain in detail an example in which the present invention is applied to a six-row riding rice transplanter. Figure 1 is a left side view of the rice transplanter,
The figure is a plan view of the same. In the figure, 1 is a running vehicle body, and this running vehicle body 1 has a front vehicle body 2, a rear vehicle body 3, and one vehicle body 2.
Front running water wheels 5, 5 are mounted via swing cases 4, 4 on both left and right sides of the vehicle, and front vehicle body 7 for running is mounted on both left and right sides of the other vehicle body 3 via swing cases 6, 6.
．． 7, etc., and a pivot pin 10.10 is attached between brackets 8 and 9 extending from each vehicle body 2 and 3 toward the other vehicle body, and each of the vehicle bodies 1 and 2 is horizontally moved. It is a bendable body type with a bendable structure.

Further, a driving transmission (not shown) is built into the front body 2 formed in a sealed box shape, and a steering device 12 including an operation bundle 11 (tilt bundle) is installed in the upper part of the body 2. Further, a driver's seat 13 is provided at the rear of the bundle 11, and this driver's seat 13 is attached to the front vehicle body 2 via a gate-shaped safety frame 14.

On the other hand, a support stand 15 is connected to the rear body 3 formed in a sealed box shape, and an air-cooled four-cycle gasoline engine 16 is mounted on the support stand 15. A preliminary seedling stand 18 on which the seedlings are placed is positioned, and the seedling stand 18 is rotatably attached to the frame 1.
It is attached to 4.

Power transmission between the front and rear vehicle bodies 2, 3 is achieved by two pairs of Barfield type universal joint shafts 19, 20 protruding from the front and rear vehicle bodies 2, 3 at the intermediate positions of the upper and lower pivot pins 10, 10 mentioned above. On the other hand, a rear hitch 21 to which a trailer or the like is connected is provided at the rear end of the support stand 15.

Note that 22 and 23 are fenders for the front and rear paddy wheels 5 and 7, and 24 are steps provided on both sides of the front vehicle body 2.

Three sets of planting devices 26 are installed in front of the traveling front vehicle body 2 so as to be movable up and down via a three-point up/down link mechanism 25.

Here, the planting device 26 includes a traveling float 27, a planting transmission case 28, a seedling stand 29 with a low front and rear height, a planting claw 30 for taking out and planting -seedlings, and each transmission case. A cylinder shaft 31 for transmitting power to 28, and this cylinder shaft 31
and a bumper 32 connected to the transmission case 28, and a streak marker 33 provided on the bumper 32 in a freely undulating manner.
and a center marker 34 and side markers 35.3 attached to the center and both left and right sides of the bumper 32.
It is composed of 5th grade.

The three-point link mechanism 25 includes a top link 36 and a lower link 37.37, and supports the transmission case 28 on the front body 2 via these links 36, 37. The lift arm 38 is connected to a hydraulic device (not shown) attached to the lift arm 39.3 between the front end of the arm 38 and the lower links 37, 37
9 is stretched, and the entire planting device 26 is raised and lowered.

Furthermore, a gear case 40 is provided at the center of the cylindrical shaft 31 as shown in FIG. The PTO shaft and the PTO shaft are interlocked and connected to each other by a telescoping shaft 42, and power is transmitted to each part of the planting device 26.

A lifting bracket 43 is provided at the tip of each of the links 36 and 37.
On the other hand, a hitch mast 44 that supports the planting device 26 is attached to the planting device 26 side.

As clearly shown in FIG. 3, the hitch mast 44 is provided with a locking pin 45.degree. 45 having a cylindrical shape and projecting outward.

Further, the elevating bracket 43 is integrally formed with projecting pieces 46.47 facing forward to support each of these locking pins 45.45 from below.

Therefore, the lower protrusion 47 of these protrusions 46 and 47
A hitch mast lock device 48 is provided.

This lock device 48 is a lock lever bent into a shape.
49, a fulcrum pin 50 that pivotally supports the lock lever 49 on the protrusion 47, and a lock spring 51 stretched between the lever 49 and the protrusion 47, and each of the protrusions 46, After the locking pin 45.45 of the hitch mast 44 is placed on the V-groove of the hitch mast 47, when the lock lever 49 is rotated to the solid line position shown in FIG. The pitch mast 44 is connected to the elevating bracket 43 in a removable manner.

Moreover, a rectangular bracket 52 is attached to the bumper 32.
. . . are fixed by welding, and self-propelled casters (swivel wheels) 53 . ing.

These self-propelled casters 53 are used when removing the planting device 26 from the traveling vehicle body 1 and transporting the device 26 independently. They are installed at opposite positions in the front and rear.

As one of the casters 53 is shown in an enlarged view in FIG. A fixed support rod 55, a portal plate 57 connected to the support rod 55 via a freely rotatable portion 56, and this portal plate 57.
A locking pin 60 is inserted from the outside into a locking hole 59 drilled in a pair of brackets 52 and a locking hole drilled in a support rod 55. Accordingly, the casters 53 are configured to be erected in a horizontal state (solid line state in FIGS. 2 and 3) or vertical state (solid line state in FIG. 1).

That is, when using the casters (during transportation/storage), the casters 53 are erected as shown by solid lines in FIG. 1 and imaginary lines in FIG. In addition, when the casters are not in use (during rice transplanting work), the lock pin 60 is positioned at the bottom.
is moved to another hole 59, and the caster 53 is lifted and supported as shown by solid lines in FIGS. 2 and 3, so that the caster 53 is located above the float 27. .

Further, a hitch 6 is attached to the U-shaped side bumper 61 attached to the bumper 32, more specifically, the front bumper and the side bumper arm, via a hitch bracket 62.
3 is fixed.

The mounting height of this hitch 63 is set to be equal to the mounting height of the rear hitch 21 behind the support base 15 described above.

In order to transport the planting device 26 in the riding rice transplanter having the above configuration, first, the lock lever of the lock device 48 shown in FIG.
49 in the clockwise direction against the spring 51, the locking pin 4 that is locked on the ■ groove of the protruding piece 46.47
5 together with the hitch mast 44 to remove the planting device 26 from the vehicle body 1.

Next, by operating the lock bin 60, a total of four casters 53 are erected as shown by solid lines in FIG.

Furthermore, if the planting device 26 is located at the rear of the vehicle body 1 as shown in FIG. The planting device 26 can be towed.

As is clear from the embodiments described above, the present invention has a structure in which the planting device 26 is connected to the traveling vehicle body 1 via the elevating link 25 so that it can be attached and detached and can be raised and lowered. Self-propelled casters 53 are attached to the front and rear sides of the vehicle in the vicinity of the left and right corners at 61 degrees, and the casters 53 are supported so that they can be raised and lowered by swinging in the front and rear directions of the aircraft, and the bumpers 32, Fix the hitch 63 inwardly at approximately the center of either the left or right side of 61,
When removing the planting device 26, attach this to the vehicle body 1.
The planting device 2 is configured to be connectable via the planting device 3.
The self-propelled casters 53... can be arbitrarily arranged at a position away from the transmission case 28 of No. 6 without being restricted by the float 27, and the front and rear installation of the casks 53... is restricted by the spacing. The floats 27... can be easily mounted and supported on the transmission case 28 without having to worry about the installation of the casters 53... compared to the conventional method.
It can be configured with desired specifications by eliminating restrictions on the size, shape, etc., and the casters 53 can be swung in the front-rear direction of the machine, which is approximately perpendicular to the pulling direction (left-right direction of the machine) of the planting device 26 using the casters 53. By raising and lowering the planting device 26, the planting device 26 can be reliably suspended and supported by the casters 53, which have a simple support structure, and the casters 5 can be suspended during movement.
It is possible to almost eliminate the danger of the planting device 3 falling sideways, and moreover, the outer end of either the right or left side of the planting device 26 can be attached to the planting device 6.
3 to connect and pull the planting device 26 to the traveling vehicle body 1, it is possible to bring the planting device 26 close to the traveling vehicle body 1 at a short connection interval and move it stably. Without this, the planting device 26 can be moved safely, and accidents such as overturning can be prevented, and it can be transported efficiently, which brings about remarkable effects such as being extremely practical.

[Brief explanation of drawings]

Fig. 1 is a side view of the riding rice transplanter according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is an enlarged view of the main part of Fig. 1, and Fig. 4 is a use when transporting the planting device 26. FIG. 1... Traveling vehicle body, 25... Three-point link mechanism (elevating link), 26... Planting device, 32
．． 61...Buffer 53...Self-propelled casters, 63...Hitsuchi.

Claims (1)

[Scope of utility model registration request] In the structure in which the planting device 26 is connected to the traveling vehicle body 1 via the lifting link 25 so as to be attachable/detachable and up/down, the front and rear corners of the bumper 32. Self-propelled casters 53 are attached to the sides, and the casters 53 are supported so that they can be raised and lowered by swinging in the longitudinal direction of the aircraft, and the bumpers 32.6
Insert hitch 63 approximately in the center of either the left or right side of 1.
The riding rice transplanter is characterized in that the rice transplanter is fixed and can be connected to the traveling vehicle body 1 via a hitch 63 when the planting device 26 is removed.