JPH0716337B2 - Mower - Google Patents

Description

TECHNICAL FIELD The present invention relates to a mower for mowing ridges and the like.

[Prior Art] Conventionally, in this kind of ridge mower, for example, when reciprocating a slope from the road side above the slope, it is impossible to make a turn to reach the end of the slope. Since it was necessary to change the direction of the reaping section, it was troublesome.

[Problems to be Solved by the Invention]

The present invention intends to improve the efficiency of work by making it possible to easily change the direction of the reaping unit by hand operation and by borrowing the driving force from the engine.

Therefore, the present invention has taken the following technical means.

[Means for Solving the Problems]

That is, the technical means according to the present invention comprises a vehicle body 1 having a traveling device 2, a reaping device 3 in front of the vehicle body, a handle 4 projecting rearward of the vehicle body, and an engine 5 for driving the reaping device.
In the lawn mower consisting of, etc., the mowing device is mounted on the vehicle body so as to be rotatable about a vertical axis 6 core, and the mowing device is provided between the mowing device 3 and the vertical axis 6. It is characterized in that the apparatus is provided with a transfer swing drive means configured to be able to change the direction by 180 degrees in the front-back direction by the drive force from the engine 5, and an operation means for intermittently controlling this swing drive by a hand operation. It is a thing.

[Action]

When performing reciprocating mowing from the road side above the slope during mowing work on the slope, first, the handle 4 protruding rearward of the vehicle body is changed to a predetermined angle with respect to the traveling direction of the machine body. Then, the worker advances the aircraft while laterally walking on the road side above the slope, and mows the grass on the slope. Then, when it reaches the end of the outward path of the slope, it turns in the reverse direction, but at this time, the direction of the reaping device is swung back and forth by the operation of the operation lever provided at the handle 4 part. Turn on the clutch for.
Then, the power of the engine is transmitted to the reaping device, and the reaping device is driven to rotate about the axis of the vertical axis, so that the direction of 180 degrees is changed. Then, if the machine body is moved backward under such a condition, the work of cutting the return path on the slope is performed.

〔The invention's effect〕

In short, according to the present invention, since the direction change of the harvesting device with respect to the vehicle body in the front-back direction of 180 degrees can be easily performed by the driving force from the engine and by the operation at hand,
In particular, the reciprocating mowing work on the slope can be efficiently performed.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

On a machine body (vehicle body) 1, traveling wheels 2 are mounted on the lower part, and a handle 4 is provided on the rear part via an engine 5 and a handle support rod 7 projecting long rearward, and on the front part, a reaping device described later. 3 is provided.

The handle support rod 7 is configured to be rotatable and fixed about the vertical axis 6 and vertically rotatable about the horizontal axis 8.

Reference numeral 9 denotes a mission case. Inside the mission case 9, gear transmission mechanisms 12 and 13 for transmitting power to a traveling transmission shaft 10 to the traveling wheels 2 and a cutting transmission shaft 11 to the cutting device 3 are installed. The reaping transmission shaft 11 is provided in front of the mission case 9.
Further, a cutting transmission case 16 that houses the cutting transmission gears 14 and 15 is continuously provided, and the case 9 and 16 are configured to have a substantially downward concave shape in a side view.

The cutting transmission case 16 is provided with a drive shaft cylinder 18 in which the drive shaft 17 is housed so as to project toward the front, and a driven shaft 19 parallel to the drive shaft 17 is provided laterally from the drive shaft cylinder 18 side. The drive wheel 17 and the driven wheel 22 are mounted on the drive shaft 17 and the driven shaft 19 and the band-saw endless cutting blade 23 is wound around them. And constitutes the harvesting device 3.

The traveling wheels 2 are arranged below the downward recesses 24 of the cases 9 and 16, and the traveling wheels 10 and the worm wheel mechanisms 25 and 2 are arranged below the traveling transmission shaft 10.
6. Travel drive shaft 27. Chain drive system 28 is interlocked to be rotationally driven via a transmission chain 29 in a case 28.

Another worm wheel transmission mechanism 30, 3 from the traveling drive shaft 27
A constant rotation shaft 32 that is rotationally driven via 1 is provided with two turning gears 33, 34 vertically spaced from each other, while the vertical axis 6 is a clutch that meshes with the upper turning gear 33. A gear 35, a lower turning gear 34, and a clutch gear 37 that meshes with an intermediate gear 36 are integrally configured with a shift shaft 38 so as to be vertically slidable. Therefore, when the swivel gear 33 and the clutch gear 35 are meshed with each other, the mowing device 3 is swiveled right around the vertical axis 6, and when the swivel gear 34. The intermediate gear 36 and the clutch gear 37 are meshed with each other, the mowing device 3 is different from the above. On the contrary, the vehicle makes a left turn around the vertical axis 6.

Reference numeral 39 is a lock gear that restricts rotation of the clutch gears 35 and 37 in the neutral position, 40 is a shifter that slides the shift shaft 38 in the axial direction, and 41 is an operating arm that can swing about the intermediate portion P as a fulcrum. The operation wires 44, 44 are linked to operate 40, and operation wires 44, 44 interlocking with clutch levers 42, 43 provided on both left and right sides of the handle 4 are connected to both ends thereof.

As shown in FIG. 7, the traveling drive shaft 27 and the transmission chain are
29, a traveling clutch mechanism 45 is provided, and at the same time when the clutch lever 42 or 43 is operated, the traveling clutch mechanism 45 is operated in the “disengagement” direction, and the rotation of the traveling wheels 2 is stopped. If the reaping device 3 is interlockingly configured so that it can be driven to rotate, it is possible to turn in a narrow place.

Another Embodiment The mower shown in FIG. 8 has traveling wheels 2 at the bottom of the vehicle body 1.
And mount the engine 5 on the rear part, and
A handle 4 is provided to project rearward. In front of the vehicle body 1, there is provided a band saw type cutting device 3 having the same structure as described above. And in such an embodiment, as shown in FIG.
The reaping device 3 is composed of three stations, 3a and 3b, and these are grounded and supported by the grounding roller 46 and mounted and supported on the vehicle body 1 side through the supporting frames 20 and 20a. Then, the three reaming devices 3, 3a, 3b are angled so as to be inclined so that a wide slope can be retrieved laterally. In this case, the worker works while walking on the flat portion of the ridge.

Fig. 10 shows the working condition on the narrow slope, Fig. 11 shows the working condition on the upper surface of the ridge, and in this case, the machine is on the traveling wheel 2 along the guide rail 47 and left and right. The reaping device is configured to be adapted to each work by moving the reaping device and adjusting the inclination of the reaping device appropriately. It should be noted that FIG. 12 shows a working state on the upper surface of the ridge, and particularly shows a state in which the wheels are traveling across the water channel.

In the embodiment shown in FIG. 13, by operating the clutch levers 42 and 43 of the handle portion 4 alternately, the reaping device 3 at the front end is driven to reciprocate back and forth around the vertical axis 8 while reaping. I am ready to work.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention.
The figure is a perspective view of the mower, FIG. 3 is a side sectional view of an essential part, FIG. 4 is a plan sectional view of a part thereof, FIG.
Fig. 7 is an exploded perspective view of the power transmission path, Fig. 7 is a broken rear view of a main part, Fig. 8 is a side view of a mower according to another embodiment, Fig. 9 is a rear view, and Figs. 10 and 11 are rear views. Figure, Figure 12 is a front view, Figure 13
Fig. 4 shows a mowing action diagram. Explanation of reference numerals 1 ... Car body, 2 ... Traveling device (wheel) 3 ... Mowing device, 4 ... Steering wheel 5 ... Engine, 6 ... Vertical axis 7 ... Steering rod, 8 ... Horizontal axis 9 ... … Mission case, 10 …… Running transmission shaft 11 …… Mearing transmission shaft, 12 …… Gear transmission mechanism 13 …… Gear transmission mechanism, 14 …… Mowing transmission gear 15 …… Mowing transmission gear, 16 …… Mowing transmission case 17 ...... Drive shaft, 18 …… Drive shaft cylinder 19 …… Drive shaft, 20 …… Support frame 21 …… Drive wheel, 22 …… Drive wheel 23 …… Band saw type endless cutting blade, 24 …… Concave 25 , 26 …… Warm wheel mechanism 27 …… Travel drive wheel, 28 …… Chien case 29 …… Transmission chain 30,31 …… Warm wheel transmission mechanism 32 …… Continuous rotating shaft, 33,34 …… Swing gear 35 …… Clutch gear, 36 …… Intermediate gear 37 …… Clutch gear, 38 …… Shift shaft 39 …… Lock gear, 40 …… Shifter 41 …… Operating arm, 42… Clutch lever 43 ...... clutch lever, 44 ...... operation wire 45 ...... running clutch mechanism, 46 ...... ground roller 47 ...... guide rail

Claims (1)

[Claims] 1. A mower comprising a vehicle body 1 having a traveling device 2, a mowing device 3 in front of the vehicle body, a handle 4 projecting rearward of the vehicle body, an engine 5 for driving the mowing device, and the like.
The mowing device is mounted on the vehicle body so as to be rotatable about a vertical axis 6 core, and the mowing device is installed between the mowing device 3 and the vertical axis 6 from the engine 5. A lawn mower, which is provided with a transfer turning drive means configured to be able to change a direction by 180 degrees in a front-back direction by a driving force, and an operating means for intermittently controlling the turning drive by an operation at hand.