JP5574313B2 - Paddy field machine equipped with propulsion member and propulsion member - Google Patents

Description

  The present invention relates to a propelling member and a paddy field machine including the propelling member.

  As a conventional technique, for example, as disclosed in Patent Document 1, a wide lug (FIG. 2 of Patent Document 1) wider than the width of the rim (10 in FIG. 2 of Patent Document 1) is provided on the outer periphery of the wheel. 7) and, for example, as disclosed in Patent Document 2, an auxiliary wheel (20 in FIG. 2 of Patent Document 2) is attached to a drive wheel (2 in FIG. 2 of Patent Document 2). An equipped transplanter is known.

JP-A-8-130945 (see FIG. 2) JP-A-7-329503 (see FIGS. 2 and 7)

  In the paddy field machine of patent document 1, it has comprised so that the propulsive force of a wheel can be improved by providing a wide lug in the outer peripheral part of a wheel. However, it is called Fukada or Super Fukada, a field where a lot of clay mud with relatively high clay is deposited on the cultivator, and a soft field where the cultivator is not stable (hereinafter abbreviated as Fukada or Super Fukada). When the paddy field machine was run in, the wheel was likely to be deeply penetrated into the field, and the mud resistance increased, and the wheel propulsion was insufficient, causing the wheel to slip easily. In the worst case, the paddy work machine may not be able to travel, and the work by the paddy work machine is interrupted.

  The transplanting machine of Patent Document 2 is configured to further improve the propulsive force of the drive wheel by providing the drive wheel with an auxiliary wheel. However, when paddy field machines are run in Fukada or Super Fukada, a large amount of mud adheres to the driving rear wheels and auxiliary wheels, and a large amount of rotational driving force is required for the driving rear wheels and auxiliary wheels. There is a problem that an unreasonable load easily acts on the drive system.

  An object of this invention is to implement | achieve the paddy field machine provided with the propulsion member which can be made to drive | work without difficulty even if it is Fukada or super Fukada.

[I]
(Constitution)
The first feature of the present invention is that the propulsion member is configured as follows.
Set wider than the width of the wheel,
A plurality of lugs formed on the outer periphery of the wheel at a predetermined mounting pitch in the circumferential direction of the wheel so as to protrude outward in the radial direction of the wheel, and enter between the pair of lugs adjacent in the circumferential direction of the wheel; It touches both of the pair of lugs at the same time and is attached to the wheel so as not to move in the circumferential direction of the wheel,
A planting line in which seedlings are planted with the position of the extended end extending inward or outward from the wheel being adjacent to the same side as the extended end on the inner or outer side of the wheel while being attached to the wheel Alternatively, it is set at a position that is substantially the same as the sowing line where the seed pods are sown, or a position that crosses the planting line or the sowing line away from the wheel .

(Function)
According to the first feature of the present invention, the extension end of the propulsion member is set at a position substantially the same as the planting line or the sowing line, or a position exceeding the planting line or the sowing line, and the length of the propulsion member. It can be inferred that a large amount of mud can be prevented from adhering to the wheel while improving the propulsive force of the wheel when the paddy field work machine is driven in Fukada or Super Fukada. Thereby, even if it is Fukada or super Fukada, it is thought that a paddy field machine can be made to run without difficulty.

  For example, in a driving experiment in which a paddy field work machine is driven in Fukada or Super Fukada, the paddy field work machine can be driven relatively easily by configuring the propelling member as described above.

(Effect of the invention)
According to the first feature of the present invention, it is possible to prevent an unreasonable load from acting on the engine and the drive system of the wheel while preventing the wheel from running idle and the operation from being interrupted due to insufficient driving force of the wheel.

[II]
(Constitution)
The second feature of the present invention is that the propulsion member of the first feature of the present invention is configured as follows.
Fixed to the wheel spokes.

(Function)
According to the second feature of the present invention, when the propelling member is fixed to the spoke, when the paddy field work machine is driven in Fukada or Super Fukada, a large amount of mud adheres to the wheel while improving the propulsive force of the wheel. It can be inferred that this can be prevented. Thereby, even if it is Fukada or super Fukada, it is thought that a paddy field machine can be made to run without difficulty.

  For example, in a driving experiment in which a paddy field work machine is driven in Fukada or Super Fukada, the paddy field work machine can be driven relatively easily by configuring the propelling member as described above.

(Effect of the invention)
According to the second feature of the present invention, it is possible to prevent an unreasonable load from acting on the engine and the drive system of the wheel while preventing the wheel from running idle and the operation from being interrupted due to insufficient propulsive force of the wheel.

[III]
(Constitution)
The third feature of the present invention is that the propulsion member of the first or second feature of the present invention is configured as follows.
It is attached to the wheel at an attachment pitch longer than the attachment pitch of the lug .

(Function)
According to the third feature of the present invention, by setting the mounting pitch of the propulsion member longer than the mounting pitch of the lug, when driving the paddy field work machine in Fukada or Super Fukada, while improving the propulsive force of the wheel, It can be inferred that a large amount of mud adheres to the wheels. Thereby, even if it is Fukada or super Fukada, it is thought that a paddy field machine can be made to run without difficulty.

  For example, in a driving experiment in which a paddy field work machine is driven in Fukada or Super Fukada, the paddy field work machine can be driven relatively easily by configuring the propelling member as described above.

(Effect of the invention)
According to the third feature of the present invention, it is possible to prevent an unreasonable load from acting on the drive system of the engine and the wheel while preventing the wheel from running idle and the operation from being interrupted due to insufficient propulsive force of the wheel.

[IV]
A fourth feature of the present invention resides in the following configuration in a paddy field machine provided with the propelling member according to the first to third features of the present invention.
A plurality of propulsion members are provided on the outer periphery of the right and left wheels.
[V]
(Constitution)
The fifth feature of the present invention resides in the following configuration in the paddy field working machine of the fourth feature of the present invention.
The number of the propulsion members provided on the right and left wheels is set to 8 or less, respectively.

(Function)
According to the fifth aspect of the present invention, by setting the number of propulsion members provided on one wheel to 8 or less, the number of propulsion members is set to an appropriate number when traveling a paddy field work machine in Fukada or Super Fukada. It is considered that even if it is Fukada or Super Fukada, a paddy field machine can be run without difficulty.

(Effect of the invention)
According to the fifth feature of the present invention, it is possible to prevent an unreasonable load from acting on the engine and the drive system of the wheel while preventing the wheel from running idle and the operation from being interrupted due to insufficient propulsive force of the wheel.

[VI]
(Constitution)
The sixth feature of the present invention resides in the following configuration in the paddy field working machine of the fourth or fifth feature of the present invention.
The said propulsion member is attached to the outer peripheral part of a wheel so that attachment or detachment is possible.

(Function)
According to the sixth feature of the present invention, when a paddy field work machine is run in Fukada or Super Fukada, the propulsion member is attached to the wheel, or the number of the propulsion member is increased or decreased according to the field conditions. While improving the propulsive force, it is possible to prevent a large amount of mud from adhering to the wheels and to allow the paddy field machine to travel comfortably. On the other hand, when a paddy field machine is caused to travel in Asada, the propulsion member can be removed from the wheel to prevent the propulsion member from hindering travel and work.

(Effect of the invention)
According to the sixth aspect of the present invention, the propulsion member can be suitably used by attaching and detaching the propulsion member according to the field conditions.

[Overall configuration of riding rice transplanter]
Based on FIG.1 and FIG.2, the whole structure of the riding type rice transplanter as an example of a paddy field machine is demonstrated. FIG. 1 is an overall side view of the riding type rice transplanter, and FIG. 2 is an overall plan view of the riding type rice transplanter. As shown in FIGS. 1 and 2, a driving unit 3 is provided on a machine body supported by a front wheel 1 and a rear wheel 2, and a seedling planting device is provided at a rear part of the machine body via a hydraulic cylinder 4 and a lifting link mechanism 5. A riding type rice transplanter is configured by 6 being supported to be movable up and down.

  The seedling planting device 6 is configured in a six-row planting specification, and includes three transmission cases 7, a planting case 8 that is rotatably supported on the right and left lateral sides of the rear portion of the transmission case 7, and planting A pair of planting arms 8 a provided at both ends of the case 8, three leveling floats 9, a seedling platform 10 on which seedlings are placed, and the like are configured. Thereby, the planting case 8 is rotationally driven by the power transmitted from the engine E to the seedling planting device 6 through the transmission shaft 19 as the seedling setting table 10 is reciprocally driven laterally to the left and right. The planting arms 8a alternately take out the seedlings from the lower part of the seedling platform 10 and plant them on the rice field T.

  The left rear wheel 2 in the left-right direction is disposed so as to be positioned at the left-right intermediate portion between the leftmost planting arm 8a and the second planting arm 8a from the left. The position of 2 in the left-right direction is arranged so as to be located in the left-right intermediate part between the rightmost planting arm 8a and the second planting arm 8a from the right. Thereby, the rear wheel 2 can be positioned at the left and right intermediate portions of the planting pitch P, and seedlings can be prevented from being planted on the rice field T roughened by the rear wheels 2, and the seedling planting accuracy can be improved (see FIG. 3).

  A driver seat 12 is provided at the rear of the floor 11 in the driver 3. On the rear side of the driver's seat 12 is equipped with a fertilizer application device 13 for supplying fertilizer to the field surface T along with planting of seedlings. The fertilizer is supplied to the groove forming tool 13e through the hose 13d by the blower of the blower 13c, and the fertilizer is supplied to the rice field T via the groove forming tool 13e.

  A bonnet 14 that covers the engine E is provided in front of the floor 11, and a steering handle 15 that steers the front wheels 1 is provided above the bonnet 14. The right and left lateral sides of the bonnet 14 are provided with right and left steps 16 connected to the floor 11, and right and left auxiliary steps 17 are provided on both lateral sides of the floor 11 and steps 16. It has been.

[Detailed structure of propulsion members]
The detailed structure of the propulsion member 30 provided on the rear wheel 2 will be described with reference to FIGS. FIG. 3 is a plan view of the vicinity of the rear wheel 2 for explaining the positional relationship between the propelling member 30 and a planting strip (planting pitch P) partially shown in cross section. 4 is a side view of the vicinity of the propulsion member 30 partially shown in cross section, FIG. 5 is a cross-sectional view of the vicinity of the propulsion member 30 at the position VV in FIG. 4, and FIG. FIG. 6 is a cross-sectional view of the vicinity of a propulsion member 30 at a position of VI-VI. In this embodiment, the propulsion member 30 provided exclusively on the left rear wheel 2 will be described as an example, but the propulsion member 30 provided on the right rear wheel 2 also has other configurations other than the left and right sides being different. Is the same.

  As shown in FIGS. 1 to 4, the rear wheel 2 includes a boss member 21 connecting the rear wheel 2, a plurality of spokes 22 fixed to the boss member 21, and a rim fixed to the tip of the spoke 22. 23 and a plurality of vertical plate-like plate-like members 26 provided across adjacent spokes 22.

  A rear wheel support case 18 is connected to the left and right central part of the rear part of the machine body so as to be able to swing up and down. From the left and right side parts of the rear wheel support case 18, the left and right support centering on the rotation axis P1 facing left and right. The shaft 18a extends to the left and right sides. The boss members 21 of the left and right rear wheels 2 are formed in a cylindrical shape, and the boss members 21 are externally fitted and fixed to the left and right support shafts 18a.

  A plurality (three in this embodiment) of spokes 22 are radially extended from the boss member 21 of the rear wheel 2. The spokes 22 of the rear wheel 2 are extended from the boss member 21 of the rear wheel 2 at a predetermined mounting pitch in the circumferential direction (in this embodiment, a mounting pitch of about 120 degrees). A ring-shaped core member 23a made of a pipe is fixed to the tip of the spoke 22, and a rubber member 23b is coated and welded to the core member 23a to form a rim 23.

  A plurality of narrow lugs 24 having substantially the same width as the rim 23 are integrally formed on the outer periphery of the rim 23 at a predetermined mounting pitch in the circumferential direction. A plurality of (in this embodiment, 12) wide lugs 25 (corresponding to lugs) wider than the width of the rim 23 are integrally formed on the outer periphery of the rim 23 at a predetermined mounting pitch in the circumferential direction. The mounting pitch of the wide lugs 25 is set to be longer than the mounting pitch of the narrow lugs 24, and the wide lugs 25 are arranged one by two for every two narrow lugs 24.

  Therefore, the width (maximum width) of the rear wheel 2 in this embodiment is the width of the wide lug 25, and the width of the propulsion member 30 described later is set wider than the width (maximum width) of the rear wheel 2. Yes.

  The inner peripheral part of the rim 23 has a V-shaped cross section, which makes it easy to drop mud adhering to the rim 23 onto the ground contact surface (see FIG. 6).

  As shown in FIGS. 4 to 6, the mounting in the circumferential direction of about 120 degrees is the same as that of the spoke 22 over the spoke 22 of the rear wheel 2 and the narrow lug 24 of the rim 23 located in the vicinity of the spoke 22. The propulsion member 30 is detachably fixed at the pitch. The propulsion member 30 is detachably attached to the rear wheel 2 in such a form that only the propulsion member 30 can be traded independently.

  The propulsion member 30 is made of sheet metal and is composed of a round pipe member having a circular cross section that is long in the left-right direction, and left and right brackets 32 in the form of a vertical plate fixed to the left and right central portions of the propulsion member main body 31. And is configured.

  The width on the inner surface side of the left and right brackets 32 is set to be substantially the same as the width of the rim 23 other than the wide lug 25 or slightly wider than the width of the rim 23 other than the wide lug 25. The propulsion member 30 can be easily attached and detached from the radially outer side.

  The left and right brackets 32 are formed with first and second mounting holes 32a and 32b penetrating in the left-right direction. The right and left brackets 32 are sandwiched between the rim 23 from the outside in the radial direction, and the propelling member main body 31 is brought into contact between two adjacent narrow lugs 24 formed on the outer peripheral portion of the rim 23. Then, the connecting bolt 33 is inserted into the first mounting hole 32a and fastened and fixed, and the connecting pin 34 is attached to the second mounting hole 32b, so that the propulsion member is formed at the intersection of the rim 23 and the spoke 22 of the rear wheel 2. 30 can be firmly fixed.

  In this case, when the connecting bolt 33 is inserted into the first mounting hole 32a and tightened and fixed, the outer peripheral portion of the connecting bolt 33 contacts the outer peripheral surface of the rear side of the spoke 22, and the connecting pin 34 is mounted in the second mounting hole 32b. Then, the positions of the first and second mounting holes 32 a and 32 b are formed so that the outer peripheral portion of the connecting pin 34 contacts the outer peripheral surface of the front side of the spoke 22. Accordingly, the propulsion member 30 can be stably provided by the contact position of the propulsion member body 31 with the narrow lug 24, the contact position of the connection bolt 33 with the spoke 22, and the contact position of the connection pin 34 with the spoke 22. Can be attached to the rear wheel 2, and rattling or the like on the rear wheel 2 of the propulsion member 30 can be effectively prevented.

  Further, since the outer peripheral surface of the propulsion member main body 31 is in contact with the inclined surfaces of the two narrow lugs 24 and the inner surfaces of the left and right brackets 32 are in contact with both side surfaces of the rim 23, for example, the propulsion member main body. Even when a biased load is applied to the inner end portion or the outer end portion of 31, the load acting on the propulsion member 30 can be stably received and supported. Etc. can be effectively prevented.

  The left and right brackets 32 are formed with extending portions 32 </ b> A that extend radially outward from the outer end of the propelling member body 31 in the radial direction. Thereby, this extending part 32A is configured to be able to give a predetermined resistance between the propelling member 30 and the farming field K in the field by slightly entering the farming field K in the farming field.

  As shown in FIG. 1, the propulsion member 30 is detachably attached to the positions of the plurality of spokes 22 of the rear wheel 2. In this embodiment, the spoke 22 has been illustrated with the three rear wheels 2 as an example. However, the spoke 22 may be four or more rear wheels 2, and in this case, the spoke 22 may be positioned at four or more spokes 22. Each of the propulsion members 30 may be disposed.

  The number of propulsion members 30 is set to a number equal to or less than two-thirds (eight or less) of the number of wide lugs 25 (12 in this embodiment) of the rear wheel 2. In this embodiment, the spoke 22 is used. The number of wide lugs 25 is set to three-fourths (12 in this embodiment). That is, the number of the propulsion members 30 is preferably two-thirds or less of the number of wide lugs 25, and three or four is optimal, but may be five or more (the number of wide lugs 25 is different). The same applies to the rear wheel 2.)

  Thus, a total of three propulsion members 30 are mounted on the rear wheel 2 with a mounting pitch in the circumferential direction of about 120 degrees. Here, when a horizontal imaginary line L is set on the surface T passing through the rotation axis P1 of the support shaft 18a in the left-right direction, the upper side or the lower side of the imaginary line L without the propelling member 30 positioned on the imaginary line L. The number of propulsion members 30 is set so that two propulsion members 30 (two propulsion members 30 above the imaginary line L in the state of the rear wheel 2 in FIG. 1) are located in one region of Yes.

  As shown in FIG. 3, the propulsion member main body 31 of the propulsion member 30 extends from the rear wheel 2 to the inside of the length W, and the propulsion member main body 31 of the propulsion member 30 extends from the rear wheel 2 by the length W outside. It is extended to. The length of the propulsion member 30 (propulsion member main body 31) is set to about 500 to about 600 mm (millimeters), or 500 mm or more and 600 mm or less, and is set to a dimension that is twice or less the planting pitch P. Yes. That is, the length of the propulsion member 30 is preferably a dimension that is twice or less the planting pitch P, and is optimally about 500 to about 600 mm, but a different dimension may be adopted.

  The position of the extended end extended inward from the rear wheel 2 of the propelling member 30 is set on the inner side of the planting line L1 adjacent to the inner side of the rear wheel 2, and is adjacent to the inner side of the rear wheel 2. It is set to the left and right intermediate part between the striated line L1 and the planting striated line L2 located further inside. A distance W1 from the rear wheel 2 to the planting line L1 adjacent to the inner side of the rear wheel 2 is substantially equal to a distance W2 from the planting line L1 adjacent to the inner side of the rear wheel 2 to the extending end of the propulsion member 30. The same distance or the same distance is set.

  The position of the extended end extended outward from the rear wheel 2 of the propelling member 30 is set outside the planting line L3 adjacent to the outside of the rear wheel 2 and is adjacent to the outside of the rear wheel 2. It is set to the left and right intermediate part between the striated line L3 and the planting striated line L4 located further outside thereof. The distance W1 from the rear wheel 2 to the planting line L3 adjacent to the outside of the rear wheel 2 is substantially equal to the distance W2 from the planting line L3 adjacent to the outside of the rear wheel 2 to the extending end of the propulsion member 30. The same distance or the same distance is set.

[Effects of propulsion members]
The effect of the propelling member 30 will be described based on FIG. Called Fukada or Super Fukada, for example, a field where a lot of clay mud G having a relatively high clayey quality is deposited on a cultivation board K as shown in FIG. 1 or a soft field where the cultivation board is not stable although not shown. In some cases, seedlings are planted in the field. In this case, the rear wheel 2 is likely to be in a state of deeply entering the field, the resistance of the mud G is increased, and a large propulsive force of the rear wheel 2 is required. For example, the rear wheel 2 without the propulsion member 30 attached thereto. If so, the propulsive force of the rear wheel 2 is insufficient, causing the rear wheel 2 to idle, and in the worst case, planting traveling of the riding type rice transplanter may become impossible.

  In addition, in order to improve the propulsive force of the rear wheel 2, if the rear wheel 2 is equipped with auxiliary wheels (not shown), a large amount of clayy mud G having a relatively high clayiness deposited on the cultivator K is produced. The rear wheel 2 and the auxiliary wheel attached to the rear wheel 2 and the auxiliary wheel are likely to form a donut shape, and the rotational driving force of the rear wheel 2 to which the mud G is attached is increased. An unreasonable load was likely to act on the drive system of the wheel 2.

  As shown in FIG. 1, when the propulsion member 30 is attached to the rear wheel 2, the propulsion member 30 is connected to the rear wheel 2 even in a farm field where a lot of clay mud G having a relatively high clayey quality is deposited on the cultivator K. It becomes easy to become resistance between the mud G, and it is considered that the propulsive force of the rear wheel 2 can be improved. Thereby, it is considered that a situation in which the propulsive force of the rear wheel 2 is insufficient and the rear wheel 2 idles and the planting traveling of the riding type rice transplanter becomes impossible can be avoided.

  In this case, for example, even if clayy relatively high mud G adheres to the propulsion member 30, the respective propulsion members 30 are disposed at positions apart from each other, and other than the portion fixed to the rear wheel 2 in the propulsion member 30. Since this portion is open, it is considered that the mud G can be prevented from adhering to the plurality of propulsion members 30.

  In addition, since the propulsion member 30 is configured to have a circular cross section, it is considered that the mud adhered by the curved surface of the propulsion member 30 is likely to fall, and a large amount of mud can be prevented from adhering to one propulsion member 30. . As a result, it is considered that a large amount of mud G adheres to the rear wheel 2 and an excessive load is applied to the drive system of the engine E and the rear wheel 2.

  Similarly, in the case where seedlings are planted in a soft field where a cultivator (not shown) is not stable, it is considered that the effect of the propulsion member 30 is obtained. Further, in a soft field where the cultivator is not stable, it is considered that the propulsion member 30 makes it difficult to sink the rear wheel 2 into the field.

  In a running experiment in which a paddy field work machine was run in Fukada or Super Fukada, it was confirmed that the propulsion member 30 was attached to the rear wheel 2 to obtain the above effect and allow the paddy field work machine to run relatively easily. did it.

  As described above, even in a field called Fukada or Super Fukada, it is possible to improve the workability of seedling planting work by driving a riding type rice transplanter without difficulty, and to reduce the horsepower loss of the engine E etc. Can improve the fuel efficiency of the riding rice transplanter.

[First Alternative Embodiment of the Invention]
Instead of the structure of the propulsion member 30 and the mounting structure to the rear wheel 2 in the above-mentioned [Best Mode for Carrying Out the Invention], a structure of a different propulsion member 30 and a different mounting structure to the rear wheel 2 are adopted. May be. In this alternative embodiment, an example of which will be described with reference to FIG. FIG. 7 is a side view of the vicinity of the propulsion members 40 and 50 in this another embodiment .

As shown in FIG. 7 , the propulsion member 40 is made of sheet metal, and includes a propulsion member main body 41 made of a round pipe member having a circular cross section that is long in the left-right direction, and a vertical member fixed to the left and right central portions of the propulsion member main body 41. It comprises a flat left and right bracket 42. The propulsion member 40 is detachably fixed to the intersection between the rim 23 of the rear wheel 2 and the spoke 22 with a connection bolt 43 and a connection pin 44. The propulsion member 40 is not provided with the extending portion 32A in the above-mentioned [Best Mode for Carrying Out the Invention], and the curved surface formed by the round pipe material extends over the entire length of the propulsion member 40. It is comprised so that it may contact with the cultivation board K of this.

[ Second Embodiment of the Invention]
BEST MODE FOR CARRYING OUT THE INVENTION foregoing, Oite in the first alternative embodiment of the invention] is the length W of the propulsion member 30, 40 from the rear wheel 2 extending inwardly, after although the example of setting the length W of the propulsion member 30, 40 from the wheel 2 extending outwardly in the same length, inside and outside of the propulsion member 30, 40 as shown in FIGS. 8 and 9 You may set the length to extend. FIG. 8 is a longitudinal rear view of the rear wheel 2 in this another embodiment, and FIG. 9 is a schematic plan view of the rear wheel 2 in this another embodiment. Note that in FIG. 8 and FIG. 9 is described propulsion member 30 as an example, Oite the propulsion member 4 0 can be similarly applied.

As shown in FIG. 8 (a), from the rear wheel 2 may extend propulsion member 30 only outside. In this case, although not shown, a configuration in which the propelling member 30 extends only from the rear wheel 2 to the inside may be employed.

As shown in FIG. 8B, the length of the portion of the propulsion member 30 extending outward from the rear wheel 2 is set to be longer than the length of the portion of the propulsion member 30 extending inward from the rear wheel 2. Also good. In this case, although not shown, the length of the portion of the propulsion member 30 extending inward from the rear wheel 2 may be set longer than the length of the portion of the propulsion member 30 extending outward from the rear wheel 2.

As shown in FIG. 9 (a), distributing the length of the plurality of propulsion members 30 is set to length, long promoted member 30 lengths, a shorter propulsion member 30 lengths, alternately in a staggered pattern You may set up. In this case, if the total number of propulsion members 30 provided in one rear wheel 2 is an even number, the number of propulsion members 30 having a long length and the number of propulsion members 30 having a short length may be set to the same number, If the total number of propulsion members 30 included in one rear wheel 2 is an odd number, the number of propulsion members 30 having a long length and the number of propulsion members 30 having a short length may be set to different numbers.

As shown in FIG. 9 (b), the propulsion members 30 extending from the rear wheels 2 to the outside and the propulsion members 30 extending from the rear wheels 2 to the inside are alternately arranged in a staggered manner. Also good. In this case, if the total number of propulsion members 30 provided on one rear wheel 2 is an even number, the number of propulsion members 30 extending outward and the number of propulsion members 30 extending inward may be set to the same number. If the total number of propulsion members 30 provided in one rear wheel 2 is an odd number, the number of propulsion members 30 extending outward and the number of propulsion members 30 extending inward may be set to different numbers. Good.

[ Third Another Embodiment of the Invention]
BEST MODE FOR CARRYING OUT THE INVENTION foregoing, [first alternative embodiment of the invention, Oite to the second alternative embodiment of the invention] is three in the mounting pitch of about 120 degrees Although an example in which the propulsion members 30 and 40 are mounted on the rear wheel 2 has been shown, as shown in FIG. 10 , a configuration in which eight or less propulsion members 30 and 40 are mounted on the rear wheel 2 at different mounting pitches is adopted. Also good. FIG. 10 is a schematic side view showing the arrangement of the propelling member 30 in this another embodiment. In FIG. 10, but illustrating the propulsion member 30 as an example, Oite the propulsion member 4 0 can be similarly applied.

As shown in FIG. 10 (a), a configuration in which a total of two propulsion members 30 are attached to the rear wheel 2 at an attachment pitch of about 180 degrees may be employed. In this case, one propelling member 30 is positioned in the upper and lower regions of the imaginary line L in a state where the propelling member 30 is not positioned on the imaginary line L.

As shown in FIG. 10 (b), a configuration in which a total of four propulsion members 30 are mounted on the rear wheel 2 at a mounting pitch of about 90 degrees may be employed. In this case, the two propulsion members 30 are positioned in the upper and lower regions of the virtual line L in a state where the propulsion member 30 is not positioned on the virtual line L.

As shown in FIG. 10 (c), a configuration in which a total of six propulsion members 30 are attached to the rear wheel 2 at an attachment pitch of about 60 degrees may be employed. In this case, the three propulsion members 30 are positioned in the upper and lower regions of the virtual line L in a state where the propulsion members 30 are not positioned on the virtual line L.

As shown in FIG. 10 (d), the mounting pitch of about 45 degrees, may be adopted for mounting a total of eight of the propulsion member 30 to the rear wheel 2. In this case, four propelling members 30 are positioned in the upper and lower regions of the virtual line L in a state where the propelling members 30 are not positioned on the virtual line L.

  Although not shown, a configuration in which a total of five propulsion members 30 are mounted on the rear wheel 2 with an attachment pitch of about 72 degrees may be employed. In this case, the propulsion members 30 are not located on the imaginary line L. In the state, the three propulsion members 30 are located in one region above or below the virtual line L. Although not shown, a configuration in which a total of seven propulsion members 30 are mounted on the rear wheel 2 with an attachment pitch of about 51 degrees may be employed. In this case, the propulsion members 30 are not located on the imaginary line L. In the state, the four propulsion members 30 are located in one region above or below the virtual line L.

[ Fourth Embodiment of the Invention]
BEST MODE FOR CARRYING OUT THE INVENTION foregoing, [first alternative embodiment of the invention, [second alternative embodiment of the invention, Oite the Third alternative embodiment of the invention] is Although a riding type rice transplanter has been shown as an example of a paddy field working machine, the present invention can be similarly applied to a riding type direct sowing machine (riding type sowing machine). FIG. 11 is an overall side view of the riding type direct sowing machine in this another embodiment, and FIG. 12 is a plan view for explaining the positional relationship of the sowing pitch P in this another embodiment.

As shown in FIGS. 11 and 12 , the riding type direct sowing machine is obtained by diverting the riding type rice transplanter with the fertilizer application device 13 described above as a riding type direct sowing machine. Instead of the device 6, a 6-row seeding seeding device 200 is connected.

  A horizontally long frame member 201 is connected to and supported by the rear portion of the elevating link mechanism 5 so as to be able to roll around an axial center facing forward and backward. Three hoppers 203 are supported in parallel at the vertical center of the support column 202. Each hopper 203 is configured in units of two strips, and a feeding mechanism 204 for two strips is provided below each hopper 203.

  The feeding mechanism 204 is linked to the transmission shaft 19 via a crank mechanism 205, and a feeding roll (not shown) of the feeding mechanism 204 is intermittently pitch-fed and rotated by the rotational driving force from the transmission shaft 19. It is comprised so that.

  Three leveling floats 207 are supported on the left and right side portions and the left and right center portion of the frame member 201 via a support frame 206, and a pair of left and right groove forming devices 208 are attached to each leveling float 207. Yes. Groover 208 and feeding mechanism 204 are connected via supply hose 209, and the seed groove that is intermittently fed by a predetermined amount by feeding mechanism 204 is formed in a buried groove formed in field T by groover 208. In addition, each strain is sowed at a predetermined seeding pitch P.

  A total of three propulsion members 30 are detachably fixed to the left and right rear wheels 2 at a mounting pitch of about 120 degrees. The position of the extended end extended inward from the rear wheel 2 of the propulsion member 30 is set to the left and right intermediate portion between the sowing line L1 adjacent to the inner side of the rear wheel 2 and the sowing line L2 positioned further inside. The positions of the extended ends extended outward from the rear wheel 2 of the propulsion member 30 are the sowing line L3 adjacent to the outside of the rear wheel 2 and the sowing line (not shown) located further outside thereof. ).

In this alternative embodiment, an example equipped with a propulsion member 30 to the rear wheel 2, may be adopted to equip propulsion member 4 0 to the rear wheel 2. In addition, although not shown, a riding type direct seeder using a riding type rice transplanter has been shown as an example, but the present invention can be similarly applied to a dedicated riding type direct seeder.

[ Fifth Embodiment of the Invention]
[Best Mode for Carrying Out the Invention], [First Alternative Embodiment of the Invention], [Second Alternative Embodiment of the Invention], [Third Alternative Embodiment of the Invention], [Invention of the Invention] Oite fourth another embodiment of the embodiment, although the propulsion members body 31,4 1 shows an example in which a round pipe member, the propulsion member body 31,4 1 may be constituted by a round bar.

Moreover, you may employ | adopt the material of a different cross-sectional shape as a material of the propulsion member main bodies 31 and 41 . Specifically, for example, a square pipe material may be adopted if it is a hollow material, and a square material may be adopted if it is a solid material. Moreover, an angle material, a channel material, a flat bar, etc. may be employ | adopted and what bent and press-molded the flat plate (steel plate) etc. may be employ | adopted.

Further, different materials may be adopted as the material of the propelling member bodies 31 and 41. For example, different metals other than iron, wood, resin, hard rubber material, or a combination thereof may be adopted.

  In addition, instead of a configuration in which the propulsion member is fixed to the rear wheel 2 by a connecting bolt or a connecting pin, for example, a configuration in which the propulsion member is simply detachably fixed to the rear wheel 2 by a lock fitting or the like (not shown) is adopted. For example, you may employ | adopt the structure which fixes a propulsion member (propulsion member main body) to the rear-wheel 2 permanently by welding etc., for example. When the propulsion member (propulsion member main body) is permanently fixed by welding or the like, the rear wheel 2 equipped with the propulsion member and the propulsion member are equipped in the same manner as in the above [third embodiment of the invention]. A normal rear wheel 2 that is not installed may be exchanged.

[Best Mode for Carrying Out the Invention], [First Alternative Embodiment of the Invention], [Second Alternative Embodiment of the Invention], [Third Alternative Embodiment of the Invention], [Invention of the Invention] Oite fourth another embodiment of the embodiment, an example equipped with a propulsion member 30, 40 to the rear wheels 2 may adopt a configuration equipped with a propulsion member 30, 40 to the front wheels 1, propulsion A configuration in which the members 30 and 40 are mounted on both the front wheel 1 and the rear wheel 2 may be employed.

[Best Mode for Carrying Out the Invention], [First Alternative Embodiment of the Invention], [Second Alternative Embodiment of the Invention], [Third Alternative Embodiment of the Invention], [Invention of the Invention] Oite fourth another embodiment of the embodiment, an example equipped with a propulsion member 30, 40 to the rear wheel 2 provided with a wide lug 25, propulsion members 30 to rear wheel 2 without a wide lug 25 , 40 may be employed. In this case, the width of the rim 23 becomes the width (maximum width) of the wheel 2.

[ Sixth Embodiment of the Invention]
[Best Mode for Carrying Out the Invention], [First Alternative Embodiment of the Invention], [Second Alternative Embodiment of the Invention], [Third Alternative Embodiment of the Invention], [Invention of the Invention] fourth alternative embodiment, [Oite fifth alternative form] embodiment of the invention, but the riding straight seeder of riding rice transplanter and Article 6 seeded specification Article 6 planting specifications shown in the example, different The present invention can be similarly applied to a riding type rice transplanter having a planting line specification and a riding type direct seeding machine having a different sowing line specification.

[Best Mode for Carrying Out the Invention], [First Alternative Embodiment of the Invention], [Second Alternative Embodiment of the Invention], [Third Alternative Embodiment of the Invention], [Invention of the Invention] fourth alternative embodiment, [Oite fifth alternative form] embodiment of the invention has been shown as an example riding rice transplanter and riding straight seeder as paddy working machine, the walking type rice transplanters or ambulatory The same applies to direct seeding machines.

Overall side view of riding rice transplanter Overall plan view of riding rice transplanter Plan view of the vicinity of the rear wheel explaining the positional relationship between the propelling member and the planting strip Side view near the propulsion member Cross section around the propulsion member Cross section around the propulsion member Side view of the vicinity of the propulsion member in the first alternative embodiment of the invention Vertical rear view of rear wheel in second embodiment of invention Schematic plan view of a rear wheel in a second alternative embodiment of the invention The schematic side view which shows arrangement | positioning of the propulsion member in 3rd another form of implementation of invention Overall side view of a riding type direct seeder according to a fourth embodiment of the invention The top view explaining the positional relationship of the sowing pitch in 4th another form of implementation of invention

2 Rear wheels
24 Narrow rug
25 Wide rug (rug)
30 , 40 propulsion members L1 planting line, sowing line L3 planting line, sowing line

Claims (6)

Set wider than the width of the wheel,
A plurality of lugs formed on the outer periphery of the wheel at a predetermined mounting pitch in the circumferential direction of the wheel so as to protrude outward in the radial direction of the wheel, and enter between the pair of lugs adjacent in the circumferential direction of the wheel; It touches both of the pair of lugs at the same time and is attached to the wheel so as not to move in the circumferential direction of the wheel,
A planting line in which seedlings are planted with the position of the extended end extending inward or outward from the wheel being adjacent to the same side as the extended end on the inner or outer side of the wheel while being attached to the wheel Or the propelling member currently set to the position which crosses the said planting line or the said sowing line to the side which leaves | separates from a wheel substantially the same position as the sowing line where sowing seeds are seeded.   The propulsion member according to claim 1 fixed to a spoke of a wheel. The propulsion member according to claim 1 or 2, wherein the propulsion member is attached to the wheel at an attachment pitch longer than an attachment pitch of the lug .   The paddy field machine which equips the outer peripheral part of the wheel of right and left with the propulsion member as described in any one of Claims 1-3.   The paddy field work machine according to claim 4, wherein the number of the propulsion members provided on the right and left wheels is set to 8 or less, respectively.   The paddy field work machine according to claim 4 or 5, wherein the propulsion member is detachably attached to an outer peripheral portion of a wheel.

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