JP6561346B2 - Ambulatory mower - Google Patents

Description

  The present invention relates to a technique of a walk-type reaper.

  Conventionally, in order to prevent overgrowth and lodging of vegetables, etc., or to increase the yield, it has been practiced to pick the tip of the stem using a pincer. In a conventional pincer, a cutter is provided in the left-right horizontal direction at the front part of the riding management machine, and the cutter can be moved up and down by an elevating device so that the cutting height can be adjusted. However, although the pincer having the above-described configuration is suitable for a large-scale farm, the medium- and small-scale farm is expensive and difficult to handle because it cannot be turned (see, for example, Patent Document 1). Therefore, walking type mowers are used in small and medium-sized farms. The walk-type reaper has a single wheel at the bottom of the columnar main frame, a handle at the top of the main frame, and a clipper-type cutter device that can be adjusted up and down and tilted in the middle of the main frame. (For example, refer to Patent Document 2).

JP 2012-191887 A JP-A-10-229750

  However, since the conventional reaping machine is configured to travel with one wheel, the slashing height is uneven and the cutting height becomes uneven. In addition, since the operator performs the operation while pushing, the cutting height is inevitably tilted back and forth due to the unevenness of the ground and the traveling load. In addition, it requires a lot of labor to work while lifting the handle. Therefore, in view of such problems, the present invention seeks to provide a walk-type reaper that is inexpensive, compact, and capable of stable running.

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
That is, in claim 1, a body frame disposed in the front-rear direction, front wheels and rear wheels disposed in a front portion and a rear portion of the body frame, a handle extending obliquely upward and rearward from the body frame, , A walking type comprising: a column erected from above the body frame; a mounting base that is vertically adjustable on the column and that can be adjusted to turn left and right; and a cutter device that is detachably attached to the mounting base. In the reaper , the mounting base includes a horizontal frame attached to the support column and extending in the left-right direction, a sliding support attached to the horizontal frame so as to be slidable in the left-right direction, and the sliding support. those comprising a rotating support which is mounted for lateral tilting is formed on the side surface an L-shape, and a mounting plate pivotally mounted on said rotary support mounting said cutter device That.

According to a second aspect of the present invention, at least one of the front wheel or the rear wheel is driven by a prime mover.

As effects of the present invention, the following effects can be obtained.
That is, the walk-type reaper can be stably driven by the two front and rear wheels, the cutter device is difficult to tilt, and the cutting height can be made uniform. Further, since the walk-type reaper is driven and driven by the prime mover, it is not necessary to perform the operation while pushing, the travel speed can be adjusted, and labor can be reduced. In addition, the cutter device can cut not only in the horizontal direction, but also in the front / rear / up / down direction. Further, the cutting height and the left / right cutting position can be adjusted, and not only the pinching but also the side buds can be cut.

The side view which showed the whole structure of the walk-type reaper which concerns on one Example of this invention. Similarly front view. The (a) top view, (b) side view, and (c) front view of the mounting base. The side view which shows another cutting operation state.

  Below, with reference to FIG.1 and FIG.2, the structure of the walk-type reaper 1 which concerns on this invention is demonstrated. In the following description, the direction of the arrow F is defined as the front. Further, in this embodiment, the walk-type reaper 1 is described using soybean pinching and side bud reaping as a reamer, but for example, for flower reaping, field and road mowing, hedge pruning, etc. Even applicable.

  The walking type reaper 1 supports the cutter device 8 with two traveling wheels on the front and rear sides to perform the reaping work. The walking type reaper 1 is provided at the front and rear of the body frame 2 arranged in the front and rear direction. The front wheel 3 and the rear wheel 4 that are disposed, a prime mover 5 that transmits power to either the front wheel 3 or the rear wheel 4, a handle 6 that extends obliquely upward and rearward from the body frame 2, and the body frame 2 A column 7 erected from above, a mounting base 10 that can be vertically adjusted and horizontally adjusted on the column 7, a cutter device 8 that is detachably attached to the mounting base 10, and the prime mover And a control unit 9 for controlling 5. In addition, as the structure which does not provide the said motor | power_engine 5 and the control part 9, it can also be made to drive | work as a hand-held type. In addition, a stand 30 can be attached to the machine body frame 2 so that it can be held in a standing state.

  The body frame 2 includes left and right support plates 21 and 21 and a mounting plate 22 fixed on the front and rear halfway portions of the support plates 21 and 21. A front axle 23 is horizontally mounted on the front ends of the support plates 21 and 21, and the front wheel 3 is rotatably supported. A rear axle 24 is horizontally mounted on the rear ends of the support plates 21 and 21 to support the rear wheel 4. Thus, the walk-type reaper 1 is supported by the two front and rear wheels.

  At least one of the front wheel 3 or the rear wheel 4 is a drive wheel, both wheels are driven, or one is driven and the other is rotatable. In the present embodiment, the rear wheel 4 is a driving wheel. The rear wheel 4 is driven by a prime mover 5. The prime mover 5 is a motor, and the motor is disposed on the body frame 2 and driven by transmitting power to at least one of the front wheels 3 and the rear wheels 4 via a power transmission mechanism so that labor can be reduced in the cutting operation. ing. In this embodiment, it is set as the wheel-in motor which arrange | positions an electric motor in the tire inner peripheral side of the rear-wheel 4. FIG. By using a wheel-in motor, the structure is more compact than the structure driven through a transmission member such as a chain. However, the prime mover 5 may be configured as an electric motor or an engine that is mounted on the body frame 2 and drives the rear wheel 4 or the front wheel 3 via a transmission member.

  A control unit 9 and a battery 25 serving as a power source are mounted on a mounting plate 22 of the machine body frame 2, and a support column 7 is erected from the front part at the center of the left and right. The control unit 9 includes a controller and controls the prime mover 5. A key switch, a travel lever, a work switch, and the like are disposed on the handle 6, and a battery 25 that supplies power is connected to the prime mover 5 and the cutter device 8 via the control unit 9. The power is turned on / off by the key switch, the traveling speed is adjusted by the traveling lever, and the cutter device 8 can be turned on / off by the work switch.

  The handle 6 is configured in a substantially Y shape when viewed from the rear, and extends obliquely upward and rearward from the rear end of the body frame 2. A left and right support shaft is provided in the middle of the handle 6 in the longitudinal direction. The rear part of the handle 6 is configured so as to be pivotable up and down, so that the vertical height can be adjusted so that it can be adjusted to the height of the operator. However, the shape of the handle 6 is not limited, and may be a substantially T shape, an inverted U shape, a U shape, or the like in a rear view. Further, the attachment position of the handle 6 is not limited to the rear end of the body frame 2. Further, the structure for adjusting the height of the handle 6 is not limited to the vertical rotation type, and may be configured to expand and contract or slide in the vertical direction.

  The cutter device 8 is configured to be driven by an electric motor as a hedge trimmer, so that electric power can be supplied from the same battery 25 as the prime mover 5, and on / off control can be easily performed. However, in this embodiment, the hedge trimmer is a double-edged clipper-type cutting blade (reciprocating blade) that enables reciprocating harvesting of the crop on the basket, but it may be a single-edged blade. Moreover, the structure which can arrange several rotary blades and can cut a predetermined width | variety at once may be sufficient. Moreover, the structure driven by an engine may be sufficient. The column 7 is formed of a cylinder, and a cutter device 8 is attached via a mounting base 10. However, the support column 7 may be formed in a polygonal shape such as a quadrangular column or a hexagonal column. Moreover, you may comprise so that replacement | exchange with the support | pillar 7 from which length differs is possible.

  As shown in FIG. 3, the mount 10 includes a support boss 11, a lateral frame 12, a sliding support 13, a rotation support 14, and a mounting plate 15. The support boss 11 is formed in a cylindrical shape and is externally fitted to the column 7 so as to be slidable up and down. A fixing knob screw 16 is screwed on the side surface of the support boss 11 so that the mounting base 10 can be fixed at a desired height and a desired left-right rotation angle. However, the fixing structure of the support boss 11 to the support column 7 is not limited to the fixing knob screw 16 and can be fixed with a pin or tightened with a bolt.

  The horizontal frame 12 is fixed to the support boss 11 in the horizontal direction, and is formed in a rail shape. The horizontal frame 12 can be fixed in the front-rear direction to be in the stored state when not stored or working. In addition, when the cutter apparatus 8 is attached to the left and right sides of the horizontal frame 12, a balance weight can be attached to the left and right other sides to improve work stability. The sliding support 13 is fitted to the horizontal frame 12 so as to be slidable to the left and right, and can be fixed at a desired position. In this embodiment, the sliding support 13 is formed in an inverted L shape when viewed from the side and has a bolt hole in the lower part, and the horizontal frame 12 has a long hole 12a in the left-right direction. Bolts 17 are inserted into the holes 12a so that they can be fixed at arbitrary positions. However, the configuration of the sliding support 13 is not limited. If the sliding support 13 can slide on the horizontal frame 12 and be fixed at an arbitrary position, a plurality of long holes 12a are provided, or ribs are used instead of the long holes 12a. , Fixing with pins, or holding and fixing the rail.

  The rotary support 14 is supported so as to be vertically rotatable with respect to the sliding support 13 and can be fixed at a desired angular position. In the present embodiment, the rotating support 14 is formed by bending a plate body into an L shape when viewed from the side, with one vertical surface serving as a support surface 14a, and the other horizontal surface serving as a mounting surface 14b, and the support surface 14a and the mounting surface 14b. A support hole is opened at the center of each, and a support shaft 13a protruding from the center of the front surface of the sliding support 13 is inserted into the support hole of the support surface 14a to rotatably support the rotary support 14. ing. Further, an arcuate guide hole 14c centering on the support hole is opened on the support surface 14a, and the bolt 17 is inserted into the guide hole 14c to adjust the angle and then fixed together with the sliding support 13. . However, the support structure and the structure for adjusting the angle are not limited. Further, similarly to the support surface 14a, an arcuate guide hole 14d centering on the support hole is opened on the mounting surface 14b.

  The attachment plate 15 is a plate that can be fixed to the rotation support 14 at an arbitrary angle and that fixes the cutter device 8. In the present embodiment, a support shaft 15a protrudes downward from the center of the lower surface of the mounting plate 15, is inserted into a support hole opened at the center of the mounting surface 14b, and is rotatably supported. Bolts 18 are inserted into the shaft, and the angle can be adjusted and fixed. However, the support structure and the structure for adjusting the angle are not limited. Further, a bolt 19 for attaching the cutter device 8 from above the attachment plate 15 is projected upward. However, the mounting configuration is not limited.

  In such a configuration, as shown in FIGS. 1 and 2, in order to perform a pinching operation using the walk-type reaper 1, the blade 8 a of the cutter device 8 is set horizontally and laterally (left or right). The mounting base 10 is fixed to the rotation support 14 so as to protrude. Then, the fixing knob screw 16 for fixing the support boss 11 is loosened, the cutter device 8 is moved up and down, the cutting height is adjusted, and the fixing knob screw 16 is tightened and fixed at a desired height. Next, the bolt 17 is loosened and the sliding support 13 is slid left and right with respect to the horizontal frame 12 so that the left and right center of the blade 8a of the cutter device 8 is aligned with the left and right center of soybeans on the basket. Adjust and tighten bolt 17 to fix. By driving and driving the rear wheel 4 while operating the cutter device 8 in this state, it is possible to perform pinching to cut the upper part of soybean. The cutting and harvesting work and the mowing work can be performed by placing the cutter device 8 at the base portion of the lower position.

  In addition, when the crop extends too much to the side or when it is desired to stop extending the side, as shown in FIG. 4, the work is performed with the blade 8a of the cutter device 8 directed in the vertical direction. In this case, the bolt 17 is loosened from the tipping work posture, and the rotary support 14 is rotated 90 degrees so that the blade 8a of the cutter device 8 faces in the vertical direction, and the bolt 17 is tightened and fixed. Next, the fixing knob screw 16 for fixing the support boss 11 is loosened, and the cutter device 8 is moved upward to be fixed at a desired height position. When the lower end of the blade comes into contact with the heel or when a leaf of the crop is caught or stepped on the front wheel 3, the bolt 18 is loosened and the mounting plate 15 is rotated so that the blade 8 a of the cutter device 8 is moved from the front wheel 3. Also, the vertical angle is adjusted so as to protrude forward, and the bolt 18 is tightened and fixed. Next, the sliding support 13 is slid with respect to the horizontal frame 12, the blade of the cutter device 8 is slid so as to be in the cutting position, the left and right positions are adjusted, and the bolts 17 are fixed. By driving the rear wheel 4 while operating the cutter device 8 in this state, the side portion of soybean can be cut. Further, by directing the blade 8a upward, a pruning operation at a high position such as a hedge can be performed. Further, by taking the tip of the cutter device 8 forward from the center of the front wheel 3, the crop can be cut before the front wheel 3 steps on, and the crop is not damaged.

  As described above, the front wheel 3 and the rear wheel 4 disposed at the front and rear of the machine body frame 2 disposed in the front-rear direction, and the prime mover 5 that transmits power to either the front wheel 3 or the rear wheel 4; A handle 6 extending obliquely upward and rearward from the body frame 2, a column 7 standing upright from the body frame 2, and an attachment attached to the column 7 so as to be vertically adjustable and horizontally adjustable. Since it is set as the walk type reaper 1 provided with the base 10, the cutter apparatus 8 attached to this mounting base 10 so that attachment or detachment, and the control part 9 which controls the said motor | power_engine 5, it is driving in the state where the two wheels were stabilized back and forth. The mowing work can be performed, and the mowing can be performed at a certain height. Further, since it is driven by the prime mover, it is not necessary to perform the operation while pushing, the traveling speed can be adjusted, and the labor can be reduced.

  The mounting base 10 includes a horizontal frame 12 attached to the support column 7 and extending in the left-right direction, a sliding support 13 attached to the horizontal frame 12 so as to be slidable left and right, and the sliding support. 13 is provided with a rotation support body 14 which is attached to 13 so as to be tilted right and left and is formed in an L shape in a side view, and a mounting plate 15 which is rotatably attached to the rotation support body 14 and to which the cutter device 8 is attached. In addition to the height adjustment, the cutter device 8 can arbitrarily adjust the position in the left and right direction, switching between the horizontal direction and the vertical cutting direction of the blade of the cutter device 8, and the vertical cutting angle. The type of work can be increased and versatility can be improved.

  Further, since the prime mover 5 is a wheel-in motor disposed on the tire inner peripheral side of the front wheel 3 or the rear wheel 4, the prime mover and the transmission member placed on the horizontal frame 12 can be eliminated, and the left and right overhangs can be removed. Without it, a compact configuration can be obtained. In addition, the heavy prime mover 5 can be arranged at a low position, so that the center of gravity can be lowered and the running stability can be improved.

DESCRIPTION OF SYMBOLS 1 Walking type reaper 2 Airframe frame 3 Front wheel 4 Rear wheel 5 Motor 6 Handle 7 Strut 8 Cutter device 9 Control unit 10 Mounting base

Claims (2)

A fuselage frame arranged in the front-rear direction, front and rear wheels arranged at the front and rear of the fuselage frame, a handle extending obliquely upward and rearward from the fuselage frame, and standing from above the fuselage frame A walking type reaper comprising: a support post, a mounting base that is vertically adjustable on the support pillar, and is attached so as to be adjustable in a left-right rotation; and a cutter device that is detachably attached to the mounting base ;
The mounting base is attached to the support column and extends in the left-right direction, a sliding support attached to the horizontal frame so as to be slidable to the left and right, and attached to the sliding support so as to be tiltable to the left and right. A walk-type reaper comprising: a rotary support formed in an L shape in a side view; and a mounting plate that is rotatably attached to the rotary support and attaches the cutter device . The walking type reaper according to claim 1, wherein at least one of the front wheel or the rear wheel is driven by a prime mover.

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