JP2913859B2 - Self-propelled furrow mower - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled ridge mower for cutting levee and the like.

[0002]

2. Description of the Related Art Conventionally, in this type of ridge mowing machine, for example, when a slope is cut back and forth from the road side on the slope, turning to the end cannot be performed. This has been dealt with by changing the direction of the mowing part (the direction of the mowing part is relatively changed by the turning drive operation of the handle), and changing and adjusting the length of the handle itself.

[0003]

SUMMARY OF THE INVENTION According to the present invention, the direction of a reaping section can be changed by an operation at hand and a turning operation of a steering wheel by a driving force from an engine. Therefore, the reciprocating mowing operation can be performed easily and efficiently without performing.

The present invention has taken the following technical measures in order to solve such problems.

[0005]

According to the present invention, there is provided a mowing machine comprising a vehicle body 1 on which traveling wheels 2 are mounted, a cutting device 3 in front of the vehicle body, a handle 4 projecting rearward from the vehicle body, and an engine 5 for driving the cutting device. In the machine, the handle is configured to be able to be driven to rotate around the vertical axis with respect to the vehicle body,
The turning center of the handle is set at a position eccentric to one side from a cutting width center position of the cutting device.

[0006]

[Function] During mowing work on a slope, the road side on the slope
When reciprocating mowing from the first, first protrude from the rear of the car body
Move the handle 4 from the normal posture (a) to the direction of the aircraft
To the specified angle (b).
Good. The worker should not walk on the side of the road on the slope.
Proceed with the aircraft and cut grass on the slope. Soshi
And return to the opposite end of the slope
At this time, the operation provided at the handle 4
By operating the crop lever, the direction of the reaping device, that is,
Clutch for swinging drive to change the direction of the handle back and forth
To enter. Then, the reaper starts moving from the engine.
The force is transmitted and it is turned around the vertical axis, essentially
Handle direction changed from (b) to (c)
Will be done. And, under such a condition,
If you proceed in the opposite direction, you can harvest the slopes
Work is performed. At this time, the work state on the outward trip (b)
And the working state on the return path (c), from the rear end of the handle
The distance to the reaper is L ₁> L_TwoIn a relationship. Therefore,
For example, on the outward trip, move the reaper farther than the operating position of the steering wheel.
To the other side and mow.
I ’m going to move the handle closer to the operating position and cut it.
With the handle, the cutting width can be
Is performed twice as wide as.

[Effects of the Invention] In short, according to the present invention, the direction of rotation of the reaper can be easily changed by the operation at hand, while the turning center of the handle is positioned at the center of the reaper width of the reaper. Since the eccentric position is set to be more eccentric to one side, reciprocating mowing work particularly on a slope can be efficiently performed over a wide range without operating the handle.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. A body (body) 1 has a traveling wheel 2 mounted on a lower portion thereof, and a handle 4 provided on a rear portion thereof through an engine 5 and a handle support rod 7 projecting rearward long. 3 are provided.

The handle support rod 7 is configured to be able to rotate around the longitudinal axis 6. The vertical axis 6 which is the center of rotation of the handle 4 is set at a position eccentric to one side from the center of the cutting width of the cutting device 3. Reference numeral 8 denotes a mission case, in which gear transmission mechanisms 11 and 12 for transmitting power to a traveling transmission shaft 9 to the traveling wheels 2 and a cutting transmission shaft 10 to the reaper 3 are installed. ing. In front of the transmission case 8, a first transmission case 13 containing the cutting transmission shaft 10 and four cutting transmission gears 14, 15,.
A second transmission case 18 in the up and down direction, which meshes the internal shafts 16 and 17 to mount the interior shaft, and a third transmission case 20 in which the drive shaft 19 is installed in the interior shaft in the front-rear direction, are connected to each other. Especially,
The second transmission case 18 is provided in a vertically inclined state when viewed from the front so that the mowing transmission shaft 10 is located higher inward than the drive shaft 19. A driven shaft 21 parallel to the drive shaft 19 is provided on a lateral side of the third transmission case 20 so as to be supported by a support frame 22 projecting from the third transmission case 20 side. A drive wheel 23 and a driven wheel 24 are mounted on the shaft 19 and the driven shaft 21, and a band saw type endless cutting blade 25 is wound around the shaft 19 and the driven shaft 21 to constitute the cutting device 3.

The traveling wheel 2 includes an engine 5, a transmission case 8, a first transmission case 13, and a second transmission case 18.
And the like, and is disposed below the portal transmission space 9 through the worm wheel mechanisms 26, 27. Traveling drive shaft 28. An interlocking arrangement is provided for rotational drive via a transmission chain 30 in a chain case 29. A pair of bevel gears 33 and 34 meshing with a bevel gear 32 provided on a shaft 31 orthogonal to the mowing transmission shaft 10 are provided on the shaft, and a clutch 35 is inserted into one bevel gear 33 side. Bevel gear 3
2, vertical axis 6 via worm wheel transmission mechanisms 36, 37
Is rotated to rotate the handle 4 clockwise, and when the clutch 35 is inserted into the other bevel gear 34 side, the bevel gear 32 and the worm wheel transmission mechanisms 36 and 37 are rotated.
, The longitudinal axis 6 is rotated in the opposite direction to that described above, and the handle 4 is driven to turn counterclockwise.
In this case, the handle 4 is manually operated by the operator.
Is fixed, the reaper 3 turns right around the vertical axis 6 or turns left around the vertical axis 6. Shifter
An operation arm 40 is provided at 38 so that the shifter is operated by a clutch lever 39 provided on the handle 4.
And an operation wire 41 for interlocking connection.

Reference numeral 42 denotes a centrifugal clutch, and reference numeral 43 denotes a transmission clutch. The driving transmission shaft 9 rotates at a low speed when engaged with the gear 11b, and rotates at a high speed when engaged with the gear 12b.

[Brief description of the drawings]

FIG. 1 is a plan view showing an operation state of a ridge mower.

FIG. 2 is a side view of a main part of the ridge mower.

FIG. 3 is a longitudinal sectional side view of a main part of the ridge mower.

FIG. 4 is a plan view of a main part of the ridge mower.

FIG. 5 is a front view of a main part of the reaper.

[Explanation of symbols]

Reference Signs List 1 body (body) 21 driven shaft 2 running wheel 22 support frame 3 reaping device 23 drive wheel 4 handle 24 driven wheel 5 engine 25 band saw type endless cutting blade 6 longitudinal axis 26 worm 7 handle support 27 27 Wheel 8 transmission case 28 traveling drive shaft 9 traveling transmission shaft 29 chain case 10 cutting transmission shaft 30 transmission chain 11 gear transmission mechanism 31 shaft 12 gear transmission mechanism 32 bevel gear 13 first transmission case 33 bevel gear 14 Cutting Transmission Gear 34 Bevel Gear 15 Cutting Transmission Gear 35 Clutch 16 Cutting Transmission Gear 36 Worm 17 Cutting Transmission Gear 37 Worm Wheel 18 Second Transmission Case 38 Shifter 19 Drive Shaft 39 Clutch Lever 20 First 3 transmission case

Claims (1)

(57) [Claims] 1. A mowing machine comprising a vehicle body 1 on which traveling wheels 2 are mounted, a cutting device 3 in front of the vehicle body, a handle 4 projecting rearward from the vehicle body, an engine 5 for driving the cutting device, and the like. On the other hand, it is configured to be able to be driven to rotate around six axes of the vertical axis, and the center of rotation of the handle is set to a position eccentric to one side from the center of the cutting width of the reaper. Running ridge mower.