JP4128988B2 - Ride type paddy field work machine - Google Patents

Description

  The present invention relates to a riding type paddy field work machine such as a riding type paddy grooving machine, paddy field plowing weeding machine, or paddy field fertilizing machine.

  Conventionally, as a paddy grooving machine, a walking paddy grooving machine is known (for example, refer to Patent Document 1). In this paddy grooving machine, an engine and a speed reducer are respectively attached to a rear end portion and a front end portion of a transmission shaft pipe extending in the front-rear direction. The rotational power of the engine is transmitted to the speed reducer via the transmission shaft in the transmission shaft pipe. A base end portion of a handle is fixed to an intermediate portion of the transmission shaft pipe, and the handle extends rearward and projects upward from the engine. A wheel is attached to the output shaft of the speed reducer, and the wheel is rotationally driven by the rotational power from the engine that is decelerated and transmitted via the speed reducer. A stay extending obliquely rearward is fixed to the transmission shaft pipe, and a culture plate is fixed to the rear end portion of the stay at an inclination angle such that the front end side is higher than the rear end side.

  In order to perform grooving in a field such as a paddy field using this paddy grooving machine, an operator advances the grooving machine while pushing the handle downward at the rear of the grooving machine. Then, the pushing-down force acts as a pressing force of the culture plate against the soil surface, and the bottom plate portion at the rear end portion of the culture plate is held at a predetermined depth.

  Further, a paddy grooving machine that can be boarded is known (for example, see Patent Document 2). In this paddy grooving machine, an engine and a deceleration chamber are respectively attached to an upper end portion and a lower end portion of a support tube that extends obliquely backward and upward. On the axle that extends horizontally from the deceleration chamber, the wheels cited are attached. An auxiliary base plate extending rearward substantially horizontally is fixed to the deceleration chamber. A groove member is attached to the lower surface of the auxiliary base plate.

  And in order to perform grooving in agricultural fields, such as a paddy field, using this paddy grooving machine, an operator gets on an auxiliary base plate and advances a grooving machine. Then, the groove cutting member is pressurized by the operator's own weight, and the groove cutting member is held at a predetermined depth.

JP 2001-178202 A Japanese Utility Model Publication No. 60-721

However, in the former paddy grooving machine, the worker must walk, and the handle is pushed down, so that the labor burden on the worker is large.
Further, in the latter paddy grooving machine, the worker stands on the auxiliary base plate and gets on the auxiliary base plate, so the labor burden on the worker is large.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a riding paddy field work machine that can reduce the labor burden on an operator and can perform work safely.

In order to achieve the above object, the riding paddy field working machine according to claim 1 includes a main body frame (1), a saddle (6) and a working portion (18) provided on the main body frame (1), A driving wheel (4) that is rotationally driven by a prime mover (2),
The main body frame (1) is provided with a transmission shaft pipe (1) extending in the front-rear direction. The transmission shaft pipe (1) has a rear end portion and a front end portion, respectively. A motor (3) is attached, and the rotational power of the prime mover (2) is transmitted to the speed reducer (3) via the power transmission shaft in the transmission shaft pipe (1), and the output of the speed reducer (3) The drive wheel (4) is attached to the shaft;
The saddle (6) is provided obliquely above and behind the center of the driving wheel (4), and the working part (18) is provided obliquely below and behind the saddle (6).
The driving wheel (4) includes an outer ring (22), a hub (23), and a plurality of spokes (24) provided between the outer ring (22) and the hub (23),
A rider paddy field work machine in which an operator (S) straddles the saddle (6) and works by arranging left and right legs on the left and right of the driving wheel (4),
A plate for preventing an operator's leg from being caught in the space formed by the outer ring (22), the hub (23) and the plurality of spokes (24) on the driving wheel (4). A member (31) is provided .

In the invention according to the first aspect, since the worker can ride and work across the saddle, the labor of the worker can be reduced. Furthermore, since the plate member is provided at least in the outer peripheral portion of the space between the spokes of the driving wheel, it is possible to prevent the operator's leg from being caught between the spokes and to work safely. In addition, since the space between the spokes is not covered by the large cover with the plate member, the structure can be simplified and the weight can be reduced.
If the plate member is provided only on the outer peripheral portion of the space between the spokes, the structure can be further simplified and the weight can be further reduced.

In addition , since the weight of the worker who rides on the saddle is supported by the driving wheel and the working part, the grooving blade or the like as the working part is pressurized with the weight of the worker, and the grooving blade or the like is determined You can work while keeping the depth. Furthermore, when the operator moves the center of gravity on the saddle, the pressure applied to the grooving blade or the like can be changed.

  In addition, the code | symbol in the bracket | parenthesis in the above expresses the element which respond | corresponds in drawing for convenience, Therefore Therefore, this invention is not limited to description on drawing. The same applies to the description of “Claims”.

  According to the riding paddy field working machine of the present invention, it is possible to reduce the labor burden on the worker and to work safely.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 are diagrams showing a riding paddy grooving machine according to an embodiment of the present invention, where FIG. 1 is a side view and FIG. 2 is a side view of one side of a drive wheel. 3 is a side view of the other side of the driving wheel, and FIG. 4 is a partially enlarged perspective view of FIG.

  This riding-type paddy field machine includes a transmission shaft pipe 1 that is slightly raised on the rear side and extends obliquely in the front-rear direction. The transmission shaft pipe 1 also functions as a main body frame. An engine (prime mover) 2 and a speed reducer 3 are attached to the rear end portion and the front end portion of the transmission shaft pipe 1, respectively. The rotational power of the engine 2 is transmitted to the speed reducer 3 via a transmission shaft (not shown) in the transmission shaft pipe 1. The output shaft of the speed reducer 3 protrudes horizontally from the case of the transmission 3, and one driving wheel 4 is fixed to the output shaft (axle). The driving wheel 4 is rotationally driven by the rotational power from the engine 1 that is decelerated and transmitted via the speed reducer 3. A leaflet plate 5 is attached to the case of the speed reducer 3, and this leaflet plate 5 covers the front and side of the front upper half of the driving wheel 4.

  A saddle 6 is attached to the upper side of the transmission shaft pipe 1. The saddle 6 is fixed by fitting two support pipes 8 extending diagonally downward and rearward from the bottom surface of the saddle 6 into two rod-like support parts 7 extending parallel and diagonally upward from the transmission shaft pipe 1. The pin 9 is fixed to the transmission shaft pipe 1 by being attached through the support pipe 8 and the support portion 7. Each of the support pipe 8 and the support portion 7 is provided with a plurality of through holes at intervals in the axial direction, and the position of the saddle 6 is changed by changing the insertion position of the fixing pin 9 into these through holes. Can be changed. The saddle 6 is positioned obliquely upward and rearward from the center of the driving wheel 4.

  A rod-like handle support portion 11 extending obliquely upward and forward is fixed to the front end portion of the saddle 6. A handle 12 extending upward is disposed at the upper end portion of the handle support portion 11, and a bar-like horizontal portion 13 and a handle support portion 11 provided so as to extend horizontally at the lower end portion of the handle 12 are supported by a support fitting 14. Thus, the handle 12 is attached to the handle support portion 11. The support bracket 14 can fix the horizontal portion 13 at an arbitrary position rotated around the axis gland of the horizontal portion 13, whereby the inclination of the handle 12 can be changed. . Further, the support bracket 14 can be fixed at an arbitrary position in the axial direction of the handle support portion 11, and thereby the height of the handle 12 can be changed. The handle 12 is located obliquely above and forward of the saddle 6 and is located obliquely above and forward from the center of the driving wheel 4.

  A throttle lever 15 is attached to the handle 12, and the throttle opening of the engine 2, that is, the output of the engine 2 is adjusted by the throttle lever 15. In addition, a stop switch 16 is attached to the handle 12, and the stop switch 16 causes the current flow to the spark plug of the engine 2 to be short-circuited to stop the driving of the engine 2.

  A stay 17 extending obliquely downward and rearward is fixed to the transmission shaft pipe 1, and a groove cutting blade (working portion) 18 is provided at a rear end portion of the stay 17 so that a front end side thereof is higher than a rear end side. It is attached with an inclination. The height and the inclination angle of the grooving blade 18 can be changed by changing the mounting position of the grooving blade 18 on the stay 17. The grooving blade 18 is located behind the driving wheel 4 and obliquely below the saddle 9.

  The driving wheel 4 includes an annular outer ring 22 to which a plurality of lugs 21 are fixed, a hub 23 to which an output shaft of the speed reducer 3 is fixed, and a plurality of spokes that connect the outer ring 22 and the hub 23. 24. These lugs 21, outer rings 22, hubs 23 and spokes 24 are made of original metal, and the lugs 21 are fixed to the outer peripheral side of the outer rings 22 by welding, and both ends of the spokes 24 are respectively connected to the inner periphery of the outer ring 22. And it is being fixed to the outer periphery of the hub 23 by welding. In this example, four spokes 24 are provided in a cross shape. Four substantially fan-shaped metal reinforcing plates 25 are fixed to the outer periphery of the hub 23 by welding so as to fill the space between the spokes 24.

  In the substantially fan-shaped space between the spokes 24 of the drive wheel 4, a plate member 31 made of a substantially arc-shaped strip is provided on the outer ring 22 side. Each plate member 31 extends between the spokes 24 with a constant width radially inward from the outer ring 22, and the total of these four plate members 31 has a constant width radially inward from the outer ring 22. It extends between the spokes 24 in a substantially annular shape. The width of the plate member 31 is set to about 1/3 of the radius of the outer ring 22, for example.

  The plate member 31 is attached to the spoke 24 and the outer ring 22 as follows. That is, a triangular connecting plate 33 is spanned between the side end portions of one surface of the adjacent plate member 31, and a hook plate 34 locked to the spoke 24 is disposed on the other surface. The side edge of the plate member 31 is sandwiched between the hook plate 34 and the connecting plate 33, and the bolt 35 and the nut 36 that pass through the connecting plate 33, the plate member 31, and the hook plate 34 are tightened. Thus, the side end portion of the plate member 31 is fixed to the spoke 24. In addition, a protrusion 37 that protrudes radially outward in a triangular shape is provided on a part of the outer periphery of the plate member 31, and the protrusion 37 is disposed so as to extend to the outer periphery of the outer ring 22. A hook plate 34 that is locked to the other side of the outer ring 22 is disposed, and a bolt 35 and a nut 36 that pass through the hook plate 34 and the plate member 31 are tightened, whereby the outer peripheral portion of the plate member 31 is A part is fixed to the outer ring 22.

  In such a riding-type paddy grooving machine, the operator S rides over the saddle 6, the left and right legs are arranged on the left and right of the driving wheel 4, and the handle 12 is gripped while the engine 2 rotates. The driving wheel 4 is rotated by the driving force, and the grooving machine is advanced by the driving wheel 4. Then, since the weight of the operator is supported by the drive wheel 4 and the grooving blade 18, the grooving blade 18 is pressurized, the grooving blade 18 is held at a predetermined depth, and the grooving machine advances. .

  In the riding type paddy grooving machine configured as described above, the worker S can ride and work across the saddle 6, so that the labor of the worker can be reduced. Furthermore, since the plate member 31 is provided in the outer peripheral part of the space between the spokes 24 of the driving wheel 4, it is possible to prevent the legs of the worker S from being caught between the spokes. Furthermore, since the space between the spokes 24 is not covered with the large-sized cover or the like with the plate member 31, the structure can be simplified and the weight can be reduced. Can do. Further, since the weight of the worker who straddles the saddle 6 is supported by the driving wheel 4 and the grooving blade 18, the grooving blade 18 is pressurized by the operator's weight, and the grooving blade 18 is set to a predetermined value. You can work while keeping the depth. Furthermore, when the operator moves the center of gravity on the saddle 6, the pressure applied to the grooving blade 18 can be changed.

In the above-described embodiment, the plate member 31 is provided in the outer peripheral portion of the space between the spokes 24 of the driving wheel 4, but not only in the outer peripheral portion but also in the space between the spokes. A plate member may be provided.
In the above-described embodiment, one drive wheel 4 is provided. Instead, a plurality of drive wheels may be provided.
In the above-described embodiment, the case where the present invention is applied to a riding paddy grooving machine has been described. However, the present invention is not limited to this, and the riding paddy field plowing weeder or the riding paddy fertilizer is also used. Can be applied. In this case, the grooving blade as a working part is replaced with a weeding part or a fertilizer part.

It is a side view which shows the riding type paddy field grooving machine which concerns on embodiment of this invention. It is a side view of one side of the driving wheel. R It is a side view of the other side of the driving wheel. FIG. 4 is a partially enlarged perspective view of FIG. 3.

Explanation of symbols

2 Engine (motor)
4 Driving wheel 6 Saddle 18 Grooving blade (working part)
22 Outer ring 23 Hub 24 Spoke 31 Plate member S Worker

Claims (1)

A main body frame (1), a saddle (6) and a working section (18) provided on the main body frame (1), and one drive wheel (4) rotated by a prime mover (2);
The main body frame (1) is provided with a transmission shaft pipe (1) extending in the front-rear direction. The transmission shaft pipe (1) has a rear end portion and a front end portion, respectively. A motor (3) is attached, and the rotational power of the prime mover (2) is transmitted to the speed reducer (3) via the power transmission shaft in the transmission shaft pipe (1), and the output of the speed reducer (3) The drive wheel (4) is attached to the shaft;
The saddle (6) is provided obliquely above and behind the center of the driving wheel (4), and the working part (18) is provided obliquely below and behind the saddle (6).
The driving wheel (4) includes an outer ring (22), a hub (23), and a plurality of spokes (24) provided between the outer ring (22) and the hub (23),
A rider paddy field work machine in which an operator (S) straddles the saddle (6) and works by arranging left and right legs on the left and right of the driving wheel (4),
A plate for preventing an operator's leg from being caught in the space formed by the outer ring (22), the hub (23) and the plurality of spokes (24) on the driving wheel (4). A riding-type paddy field work machine provided with a member (31) .

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