JPH076742Y2 - Grooving device in paddy work machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a grooved device in a paddy working machine.

<Prior Art> Conventionally, a work machine that moves through paddy fields to perform ground work is equipped with wheels for traveling drive, and as shown in FIG. The adhered mud and the like run with the rotation of the wheels, and become the earth mass 4 and fall on the rice field. These earth masses 4 hinder the ground work, for example, the posture of planting seedlings is disturbed. Conventionally, by the float of the working machine, the unevenness formed on these rice fields is leveled by the float.

<Problems to be solved by the invention> However, in the method of leveling the paddy field with the float as in the above-mentioned conventional method, the float itself obtains buoyancy due to the water on the paddy field. It is difficult to directly contact the lower surface of the mud surface below the water surface, and the mud surface cannot be leveled sufficiently. For this reason, there is a problem that the unevenness of the paddy field formed by the dropping of the clod adhered to the wheel as in the past cannot be sufficiently leveled and remains.

<Means for Solving the Problems> According to the present invention for solving the above problems, a body 1 is supported by a pair of front wheels 3 and rear wheels 5, and a ground working unit 9 for performing ground work is provided in the rear. In the attached paddy working machine, support members 37 and 55 are supported on the machine body 1 side so as to be vertically movable, and at the lower ends of the support members 37 and 55, wedge-shaped members located in front of the rear wheel 5 and immersed in the soil. The grooved portions 41 and 57 are provided, and the groove 42 is formed on the planned track line of the rear wheel 5 as the machine body 1 advances.

<Operation> The machine body 1 is supported by the front wheels 3 and the rear wheels 5, and travels by driving one of the wheels. The ground work unit 9 provided at the rear of the machine body 1 performs ground work as the machine body 1 travels.
The grooved portions 41 and 57 provided at the lower ends of the support members 37 and 55 are the rear wheels 5.
Since it is located on the expected track line and is submerged in the soil, a groove 42 is formed on the rice field as the machine body 1 travels, and the rear wheel 5 rolls in the groove 42. Therefore, the soil is less likely to come into contact with the rear wheel 5, and the soil is less likely to adhere to the rear wheel 5 or carry around.

<Embodiment> An embodiment of the present invention will be described in detail below with reference to the drawings.
FIG. 1 shows an embodiment in which the device of the present invention is attached to a rice transplanter.

The machine body 1 is supported by a pair of left and right front wheels 3 and rear wheels 5, and a lifting link 7 for lifting and lowering a grounding working part 9 which is a planting working part is provided in the rear. The grounding work unit 9, which is a work unit for planting, is a drive case 11 that receives power from the machine body 1, and a seedling table that is provided above and tilted forward.
12 and a planting rod 13 provided at the rear end of the drive case 11
And a float 15 or the like which is attached to the lower side of the drive case 11 to support the working part and have a leveling action.

On the other hand, a driver's seat 17 is provided on the machine body 1, and fenders 19 for covering the large-diameter rear wheel 5 are attached to both sides of the driver's seat 17. A rear wheel axle 21 projects below the fender 19, and a rear wheel 5 including three arms 25 and a rim 27 is fitted and fixed to the axle 21. The arm 25 has a rib 23 attached to the base end.
The rim 27 is provided with wide lugs 29 on the left and right at predetermined intervals. As shown in FIG. 1, the wheels 3 and 5 sink below the rice field 31 and roll on the cultivator 33 to move forward.

As shown in FIGS. 1 and 2, a pipe-shaped holding member 35 is attached to the lower side surface of the fender 19 in an arc shape along the peripheral edge of the rear wheel 5. A supporting member 37, which is also curved in an arc shape along the peripheral edge of the rear wheel 5, is slidably inserted into the holding member 35, and the supporting member 37 is fixed by a butterfly bolt 39 provided on the holding member 35. A grooved portion 41 extending downward is fixed to the lower end of the support member 37. The grooved portion 41 has a wedge-shaped plane cross section toward the front, and a support member 37 is fixed to the back side of the tip portion. The width w of the wedge-shaped rear end is formed wider than the width of the lug 29.

In the grooved device configured as described above, when traveling in the paddy field, the butterfly bolt 39 is loosened and the support member 37 is slid downward, and the grooved portion 41 is on the planned track line of the rear wheel 5, The rear wheel 5 is fixed at a position in front of the part of the rear wheel 5 which is immersed in the soil. When driving in the paddy field in this state, as shown in Figs. 1 and 3,
As the machine body 1 advances, the grooved portion 41 forms the groove 42, and the rear wheel 5 travels in the groove 42.

Further, when traveling on the road or stored, the wing bolt 39 is loosened and the support member 37 is pushed up to be stored. The support member 37 is held by the pipe-shaped holding member 35.
In addition to the above case, a member for holding may be separately attached and held on the lower side of the fender 19.

The groove 42 formed in the field 31 by the grooved portion 41 is a float.
The tip of 15 is filled with a groove filling tool 43 attached. As shown in FIGS. 1 and 4, a mounting plate 45 having a support rod 47 protruding from the tip is bolted to the upper surface of the tip of the float 15. The support rod 47 is composed of a rod 47a fixed to a mounting plate 45 and a mounting plate 47b fixed to the lower end of the rod 47a. A groove filling member 49 is mounted on the mounting plate 47b via a mounting piece 50 so as to face upward. ing. The groove filling member 49
Has a downward channel shape, and the attachment pieces 50 are provided in the front and rear on the upper side. Further, the groove 42 is provided on the front side of the groove filling member 49.
Has a scraping port 49a for scraping in the soil on both sides, and becomes narrower toward the rear and is connected to the discharge port 49b on the rear side. Further, the lower half of the groove filling member 49 is buried under the rice field 31, and as the machine body 1 travels, soil is collected from both sides to fill the groove 42. Therefore, even if the groove 42 cannot be leveled by the float 15, the groove embedding tool 43 carries out preliminary leveling, so that the float 15 can surely level the paddy field.

With the grooved device described above, the lug 29 of the rear wheel 5
The amount of soil that comes in contact with or adheres to
The lifting and carrying of soil by the rear wheel 5 is reduced. Therefore, it is less likely that the soil adhered to the rear wheel 5 will fall and the rice field will be roughened.

5 to 7 show a device of another embodiment, and are partial side views showing the rear wheel 5 of the rice transplanter and the transmission chain case 51. The transmission chain case 51 is attached rearward from both sides of the mission provided at the rear of the engine, and the rear wheel 5 is attached to the rear end. A mounting portion 52 is provided on the outer surface of the transmission chain case 51 at the front position of the rear wheel 5.
A holding member 53 formed in a U shape is fastened to 52. Holes are formed in the upper and lower surfaces of the holding member 53, and a straight support member 55 is vertically slidably inserted. Support member 55
A grooved portion 57 similar to that of the first embodiment is attached to the lower end of the rear wheel 5 and is located in front of the rear wheel 5. Holding member 53
Inside, the support member 55 is covered with a spring 58, and the spring 58 is interposed between a spring receiver 59 regulated by a pin 60 inserted through the support member 55 and the upper surface of the holding member 53. Therefore, the support member 55 is always urged downward. A guide rod 61 is integrally attached to the support member 55 in parallel with the support member 55.
Is inserted into the holding member 53, and the rotation of the support member 55 is prevented.

With such a configuration, it becomes possible for the grooved portion 57 to move up and down according to the ups and downs of the cultivator 33 and the hardness of the rice field 31.
It is possible to smoothly run on the uneven cultivator 33 and the rice field 31 with uneven hardness.

In addition to the rice transplanter, the device of the present invention can also be used as a ground work machine such as a fertilizer applicator, a seeder, and a transplanter.

8 and 9 show a dirt removing device 62 for the rear wheel 5. FIG. 8 is a side view of the right rear wheel 5. Also the ninth
The figure is a rear view showing the mounting portion of the dirt removing device 62. A mounting member 64 is provided upright on the rear wheel transmission case 63, and a support rod 65 is fixed to the left and right at the upper end thereof. A fitting pipe 66 is fitted to the support rod 65 so that it can slide left and right,
It is pin-joined to the support rod 65 through a pin hole formed at the end of the fitting side. A shaft 67 is fixed to the outer end of the fitting pipe 66, and a boss 68 is rotatably loosely fitted to the shaft 67.
A biasing spring 69 is interposed between the outer end of the boss 68 and a spring receiver 69a provided at the tip of the shaft 67, and constantly biases the boss 68 toward the fitting pipe 66. A friction clutch 70 is provided between the boss 68 and the fitting pipe 66, and the urging force of the urging spring 69 constantly applies a constant load to the rolling of the boss 68. Blade arms 71 and 72 are radially attached to the peripheral surface of the boss 68. The blade arm 7
1, 72 are provided upright in the vicinity of both ends of the boss 68, and are provided so as to face each other. The tip ends of the blade arms 71 and 72 are bent in both directions, and a contact portion 73 is provided vertically, and the rear wheel 5 is provided between the left and right contact portions 73 provided on the left and right blade arms 71 and 72.
The rim 27 is provided with a gap enough to be sandwiched. A scraping plate 74 is attached between the base ends of the blade arms 71 and 72, and the shape of the outer edge is curved according to the shape of the lug 29 of the rear wheel 5.

The earth removing device 62 configured as described above is supported near the rear wheel 5 and rotates as it contacts the lug 29 as the rear wheel 5 rotates, as shown in FIG. This time rim 27
The soil adhered to is scraped off when the rim 27 passes between the contact portions 73. Further, the soil attached to the lug 29 is bent and deformed by the contact of the contact portion 73, and is dropped by the contact of the contact portion 73 itself. Since the load of the friction clutch 70 is applied to the rotation of the soil removing device 62, the rotation of the soil removing device 62 cannot be easily performed only by contact with the adhered soil. Also support rod
The 65 has a pin hole 65b for fixing the fitting pipe 66, but the pin hole 65a is also provided in the vicinity of the mounting base end, and the fitting pipe 66 can be slid and fixed by the pin hole 65a for storage. It becomes a state.

10 to 17 show that when the rear wheel 5 is deeply inserted,
The present invention relates to a resistance member attached to the rear wheel 5 for escape. As shown in FIG. 12, the resistance member 80 is composed of a plate portion 80a which is sufficiently wider than the lug 29, and a mounting leaf spring 80b provided on the back side thereof. The mounting leaf spring 80b is mounted on the arm 25 and has a function of fixing the resistance member 80 to the rear wheel 5. As shown in FIGS. 10 and 11, the resistance member 80 is attached toward the traveling direction so that the plate portion 80a comes in the rotation direction of the rear wheel 5 when the rear wheel 5 comes out from the rice field 31. If the resistance member 80 is attached to each arm 25 of the rear wheel 5 in this manner, the resistance of the rear wheel 5 to the soil is increased, and it becomes possible to escape from the depth. When not in use, the 10th
As shown in FIGS. 13 and 14, the mounting plate spring 80b can be hooked on the storage rod 81 provided upright behind the driver's seat 17 for storage.

14 to 17 show examples of other resistance members. FIG. 16 is an overall perspective view of the resistance member 83. Arm 25
The two plate portions 83a are fixed in parallel with each other by sandwiching the sleeve portion 83b which is fitted on the outer periphery of the sleeve portion 83b, and engages with the engagement pin 86 inserted into the arm 25 at the upper edge of the sleeve portion 83b. Joint section
83c is formed. 14 and 15 show a resistance member 83.
In the attached state, a spring 84 is installed below the plate portion 83a between the plate pin 83a and a receiving pin 85 through which the arm 25 is inserted, and urges the resistance member 83 upward.

In the non-acting state, the rear wheel 5 and the resistance member 83 are fixed in parallel to each other, and in the working state, the resistance member 83 is pushed downward to release the engagement between the engaging portion 83c and the engaging pin 86, and the rear wheel. Rotate in the direction perpendicular to 5 and engage and fix again. With such a configuration, the resistance member 83 is not lost, and the attaching / detaching operation is not necessary, so that the operability is improved.

FIG. 17 shows an example in which the resistance member is rod-shaped. A pipe 87 is attached to the arm 25 in the left-right direction.
The resistance member 88 is inserted through the pipe 87 if necessary, and is attached at a right angle to the rear wheel 5. Reference numeral 88a is a position stopper. When the rear wheel 5 is attached, the pipe 87 is abutted against the resistance member 88.
Position.

<Effects of the Invention> According to the position of the present invention configured as described above, when the rear wheel is immersed in the soil and travels, the groove device forms the groove prior to the travel of the rear wheel. The amount of soil adhered to the lugs and rims of the rear wheels is reduced, and the occurrence of irregularities on the rice field due to the fall of adhered soil is reduced.

Therefore, since the rice field becomes smoother than in the past, the problem that the posture of planting seedlings is disturbed when it is adapted to a rice transplanter, for example, is solved, and the planted seedlings can be smoothly grown.

[Brief description of drawings]

FIG. 1 is a partial side view showing an embodiment in which the device of the present invention is mounted on a rice transplanter, FIG. 2 is an overall view of each member showing a mounting relationship between a holding member and a supporting member, and FIG. 3 shows a groove forming state. FIG. 4 is a rear cross-sectional view of the groove shown in FIG. 4, FIG. 4 is an exploded perspective view of the groove embedding, and FIG. 5 is an overall side view showing a mounting state of another embodiment of the present invention.
7 and 8 are also a front view and a side view, FIG. 8 is a side view of the right rear wheel, FIG. 9 is a rear view showing a mounting portion of the soil removing device, and FIGS. Fig. 12 is a rear view and a side view of the rear wheel showing the mounting state. Fig. 12 is an overall perspective view of the resistance member.
Fig. 13 is a side view of the rice transplanter showing the storage state of the resistance member.
FIG. 15, FIG. 15 and FIG. 16 show another example of the resistance member, showing a rear wheel rear view showing a usage state, a side view and a resistance member whole perspective view,
FIG. 17 shows an example of a different resistance member, and FIG. 18 is a side view of the rear wheel showing the state of the soil attached to the rear wheel and the state of the clod falling on the rice field. 1: Airframe, 3: Front wheel 5: Rear wheel, 9: Ground working part 37,55: Support member, 41,57: Grooved part

Claims (1)

[Scope of utility model registration request] 1. A paddy working machine in which a machine body (1) is supported by a pair of front wheels (3) and rear wheels (5), and a ground working section (9) for carrying out ground work is attached to the rear of the machine. 3
7,55) is vertically movable and is supported on the side of the machine body (1), and the lower end of the support member (37,55) is provided with a wedge-shaped groove that is located in front of the rear wheel (5) and is submerged in the soil. A grooved device in a paddy working machine in which a section (41, 57) is provided and a groove (42) is formed on the planned track line of the rear wheel (5) as the machine body (1) advances.