JP2017136044A - Walking type reaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reaper that prevents a cutter device from falling suddenly from a main frame at the time of adjusting the height of the cutter device and allows the operation of fixing the cutter to be easily performed.SOLUTION: According to the present invention, a walking type reaper 1 comprises a body frame 2 supported by running wheels including a front wheel 3 and a rear wheel 4, a handle 6 extending obliquely upward and rearward from the body frame 2, a support rod 7 standing on the body frame 2, a mounting base 10 vertically adjustably attached to the support rod 7, and a cutter device 8 attached to the mounting base 10. A damper 27 is disposed between the body frame 2 and the mounting base 10.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a technique for a walk-type reaper, and more particularly, to a technique for easily adjusting the height of a cutter device with respect to a support column erected vertically on a body frame.

  2. Description of the Related Art Conventionally, for example, a reaper that uses a walking-type reaper for reaping a portion of a flower of a cherry tree is known. This 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 vertically and tilted in the middle of the main frame. (See, for example, Patent Document 1).

JP-A-10-229750

When adjusting the height of the cutter device according to the position of the flower in a conventional reaper, loosen the bolt, slide the cylinder part up and down with respect to the main frame to determine the height, and tighten the bolt The height was adjusted by fixing. However, since the cutter device is equipped with an engine and a cutting blade, it is heavy, and when the bolt is loosened to adjust the height, the cutter device may fall, which may cause damage or injury. Also, when adjusting the height, it is necessary to support the cutter device with one hand and tighten the bolt with the other hand, and it takes time to tighten the bolt and the efficiency is low, and the reaper itself may fluctuate during the tightening operation. In some cases, positional deviation occurred. Further, if the bolts are weakly tightened, the cutter device may suddenly fall during work.
Therefore, in view of such problems, the present invention seeks to provide a reaper that can easily perform a fixing operation without causing the cutter device to suddenly drop with respect to the main frame when the height of the cutter device is adjusted.

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
That is, according to the first aspect of the present invention, the vehicle body frame supported by the traveling wheel, the handle extending from the vehicle body frame, the column standing on the vehicle frame, and the column can be vertically adjusted. In a walk-type reaper provided with an attachment base and a cutter device attached to the attachment base, a damper is disposed between the body frame and the attachment base.

  According to a second aspect of the present invention, a mounting base is attached to the support column so as to be vertically slidable, and the mounting base is provided with a fixing means that can be pressed against a side surface of the support post, and a grip is connected to the fixing means. It is provided and can be pressed and fixed by turning the grip.

  According to a third aspect of the present invention, the grip is disposed on the side opposite to the cutter device.

As effects of the present invention, the following effects can be obtained.
In other words, the walk-type reaper does not drop suddenly when the fixing means is released (when unlocked) when adjusting the height of the cutter device, causing damage to the cutter device, Can be prevented from being injured.
Moreover, it can be easily fixed at a desired height simply by rotating the grip, and the height can be easily adjusted.

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 side view which attached the mount to the support | pillar. XX arrow sectional drawing in FIG. (A) Cross-sectional view showing the unlocking state of the fixing means, (b) Cross-sectional view showing the locked state of the fixing means, (c) Side view of the fixing means. (A) Sectional drawing which shows the unlocking state in the fixing means of other embodiment, (b) Sectional drawing which shows a locked state, (c) Side view of fixing means.

  Below, with reference to FIG.1 and FIG.2, the whole 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. The walk-type reaper 1 can also be used for pinching, side shoot cutting, flower cutting, field and road mowing, hedge pruning, and the like.

  The walk-type reaper 1 supports the cutter device 8 with two traveling wheels on the front and rear sides to perform the reaping operation. The walk-type reaper 1 is provided at the front and rear of the body frame 2 arranged in the front-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 in the vertical direction from above, a mount 10 attached to the column 7 so as to be vertically adjustable, a cutter device 8 detachably attached to the mount 10, and a control for controlling the prime mover 5. Part 9. 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 26 can be attached to the 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 machine body frame 2, and the base portion of the handle 6 can be attached to the upper portion of the column 7. 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 that of the prime mover 5 so that 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 instead of a motor may be sufficient.
The column 7 is formed of a quadrangular column, and a cutter device 8 is attached via a mounting base 10. However, you may comprise the support | pillar 7 in polygons, such as a cylinder and a hexagonal column. Moreover, you may comprise so that replacement | exchange with the support | pillar 7 from which length differs.

  As shown in FIGS. 3 and 4, the mounting base 10 includes a sliding body 11, a lateral frame 12, and a mounting plate 13. The lateral frame 12 extends laterally from the sliding body 11, the mounting plate 13 can be fixed at an arbitrary position of the lateral frame 12, and the cutter device 8 is attached to the mounting plate 13.

  The sliding body 11 is externally fitted to the column 7 so as to be slidable up and down, and can be fixed at an arbitrary position. Specifically, the sliding body 11 includes a front plate 14, a rear plate 15, guide rollers 16, 16..., A grip 17, and a fixing means 30.

  .. Are rotatably supported between the front plate 14 and the rear plate 15, and a plurality of pairs of guide rollers 16, 16... That is, the left and right guide rollers 16 and 16 are arranged in a pair in contact with the left and right side surfaces of the support column, the support shaft of the guide roller 16 is horizontally mounted on the front plate 14 and the rear plate 15, and the front plate 14 and the rear plate 15 are It is attached to the column 7 so as to be slidable up and down. However, the guide roller 16 may be configured to be guided by being sandwiched from the front-rear direction. Further, the number of guide rollers 16 is not limited.

  As shown in FIG. 5, the fixing means 30 includes a cam shaft 31 and a grip 32, and both front and rear sides of the cam shaft 31 are perfectly circular and are horizontally supported by the front plate 14 and the rear plate 15, and are rotatably supported. A central portion in the axial direction (range of front and rear widths of the side surface of the support column 7) is configured as a cam portion 31a having an elliptical sectional view. When the major axis (major axis) of the central portion in the axial direction of the cam portion 31a is in the vicinity of the horizontal position, the outer periphery abuts against the side surface of the support column 7, and when the major axis (major axis) is in the vertical direction, the outer periphery is completely supported by the support column. 7 is attached to the front plate 14 and the rear plate 15 so as to be separated from the side surfaces of the plate 7. When the major axis (major axis) is rotated in a substantially horizontal direction, the outer periphery is attached to the side of the column 7 so that it cannot slide up and down. Further, in order to easily recognize whether the major axis (major axis) is located in the left-right direction (horizontal direction) or the up-down direction (vertical direction), a mark such as a line can be provided on the surface of the grip 32 described later. .

  A grip 32 is connected to one end of the cam shaft 31 in the axial direction. The grip 32 is an extension of the axis of the cam shaft 31 (on the same axis) and is attached to the support column 7 so as to extend in the direction opposite to the cutter device 8.

  Thus, when the grip 32 is grasped and the long axis of the camshaft 31 is rotated so as to face in the vertical direction, the lock is released, and the mounting base 10 to which the cutter device 8 is attached can be slid in the vertical direction, at a desired position. When the grip 32 is rotated so that the major axis of the camshaft 31 faces the horizontal direction, the grip 32 is locked and can be fixed at a desired position, and the height can be easily adjusted.

  Further, the fixing means 30 may be configured to provide an eccentric shaft 33 as shown in FIG. 6 instead of configuring the central portion of the cam shaft 31 in an elliptical shape in cross section. The eccentric shaft 33 is arranged eccentric from the axis of the cam shaft 31, and a grip 32 is provided on the extension of the cam shaft 31 in the same manner as described above.

  Thus, the grip 32 can be rotated to lock the eccentric shaft 33 by bringing the outer periphery of the eccentric shaft 33 into contact with the side surface of the column 7, and the outer periphery of the eccentric shaft 33 can be placed at a position other than the above (the position not contacting the side surface of the column 7). By rotating, the lock is released and the height of the cutter device 8 can be changed.

  As shown in FIGS. 3 and 4, the horizontal frame 12 is configured by a square pipe having a quadrangular sectional view, one end is fixed to the front surface of the front plate 14, and the other end is extended laterally. A mounting plate 13 is mounted on the horizontal frame 12 so that the left and right positions can be adjusted. The mounting plate 13 is formed with a fitting pipe portion 13 a that slidably fits the horizontal frame 12 at an upper portion, and a fastening bolt 17 is screwed into the fitting pipe portion 13 a. The mounting plate 13 can be fixed at a desired position on the frame 12. The cutter device 8 is attached to the front surface of the attachment plate 13.

  As shown in FIGS. 1 and 3, a damper 27 is interposed between the mount 10 and the body frame 2. The damper 27 is constituted by a gas spring or the like, the lower end is pivotally supported on the body frame 2, and the upper end is pivotally supported on the tip of a support shaft 28 projecting forward from the upper part of the front plate 14 of the sliding body 11 (mounting base 10). It is assumed to be configured. However, the arrangement position of the damper 27 is not limited to the front of the sliding body 11, and can be arranged rearward or sideward.

As described above, the fuselage frame 2 supported by the traveling wheels including the front wheels 3 and the rear wheels 4, the handle 6 extending obliquely upward and rearward from the fuselage frame 2, and standing on the fuselage frame 2. In the walk-type reaper 1, which is provided with a supporting column 7 attached to the supporting column 7 so as to be adjustable up and down, and a cutter device 8 attached to the mounting table 10, the body frame 2 and the mounting table 10 Since the damper 27 is disposed between them, when the height of the cutter device 8 is adjusted, the grip 32 is rotated to be in the unlocked state. At this time, since the sliding body 11 is connected to the damper 27, it tries to descend due to its own weight, but the sudden lowering is suppressed by the buffering action of the damper 27, and the cutter apparatus 8 may be damaged. Can be prevented.
Further, when the cutter device 8 is slid to a desired height position and is to be fixed (locked), the height can be maintained with a small force by the urging force of the damper 27, and when the locking means 30 is locked. The burden can be reduced.

  The mounting base 10 is attached to the support column 7 so as to be slidable in the vertical direction. The mounting base 10 is provided with fixing means 30 that can be pressed against the side surface of the support pillar 7. The fixing means 30 has a grip. 32 is continuously provided and can be locked by being pressed and fixed by rotation of the grip 32, so that the lock operation and the unlock operation can be easily performed while holding the grip 32.

  Further, since the grip 32 is disposed on the side opposite to the cutter device 8, when the lift 32 is lifted or lowered to adjust the height, the grip 32 is grasped with one hand and the other hand is lateral. The cutter device 8 is supported on both sides of the support column 7 by grasping the frame 12 and the like, and can be locked and unlocked by the grip 32. The height can be adjusted by sliding the slider 11 smoothly up and down without being twisted. can do.

DESCRIPTION OF SYMBOLS 1 Walking type reaper 2 Airframe frame 7 Prop 8 Cutter device 10 Mounting base 27 Damper 30 Fixing means 32 Grip

Claims (3)

  An aircraft frame supported by the traveling wheel, a handle extending from the aircraft frame, a support column erected on the aircraft frame, a mounting base attached to the support column so as to be vertically adjustable, and the mounting base A walking type reaper having a cutter device attached thereto, wherein a damper is disposed between the body frame and the mounting base.   A mounting base is attached to the support column so as to be slidable up and down, and the mounting base is provided with a fixing means that can be pressed against a side surface of the support column, and a grip is connected to the fixing means. The walk-type reaper according to claim 1, wherein it can be fixed by pressing.   The walk-type reaper according to claim 1, wherein the grip is disposed on a side opposite to the cutter device.

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