JPS6238442Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mobile agricultural machine equipped with a pair of left and right propulsion wheels and wheels for supporting a driver's seat that are configured to be steerable.

By steering only the wheels, the above-mentioned mobile agricultural machine can perform, for example, meandering steering in a relatively small range to follow a winding row of stem culms, or selectively use the steering clutch for the propulsion wheels to either left or right. It has the advantage of being able to take various forms of travel, such as large-radius turns by manipulating the wheels and small-radius turns by simultaneously manipulating the wheels and clutch.

As a configuration of a mobile agricultural machine having the above-mentioned advantages, a technique disclosed in Japanese Utility Model Application Publication No. 146377/1983 is known.

However, with this structure, the steering clutch is turned on and off using a lever installed on the handle of the traveling aircraft, and the wheels are steered using pedals installed on the seat-mounted frame. This allows the driver to use both his hands and feet when turning in a small radius by operating the wheels and steering clutch at the same time.
Not being able to concentrate on steering wheel operations, and other operations that must be performed when the aircraft turns,
For example, since operations such as raising and lowering the reaping section or operating the brakes must be carried out by changing hands with the steering clutch lever, it is difficult to carry out operations when the aircraft is turning.

The object of the present invention is to eliminate the above-mentioned drawbacks by devising the operating structure of the steering clutch.

The characteristic structure of this invention to achieve the above purpose is as follows:
A pair of left and right steering pedals for steering the wheel around the vertical axis are attached to the wheel supporting portion, and are distributed to the left and right sides of the vertical axis, and
a pair of left and right steering clutches that are linked to a pair of steering clutches for connecting and disconnecting power to the propulsion wheels, and that can selectively turn on and off one of the steering clutches by swinging around the vertical axis; steering clutch pedals are distributed to both left and right sides of the vertical axis and are arranged in close proximity to the steering pedals,
Furthermore, the steering pedal and the steering clutch pedal can be simultaneously operated in the same direction around the vertical axis to simultaneously rotate them, and can be independently operated to move each of them relative to each other around the vertical axis. That's what I did.

According to the above configuration, when making a small radius turn by simultaneously operating the wheels and the steering clutch, by simultaneously operating the wheels and the steering clutch with the foot,
The hands can concentrate on operating the steering wheel, and operations such as raising and lowering the reaping section or operating the brakes, which must be performed when the aircraft turns, can be performed without having to switch hands with the steering clutch lever, as in the past. Operation when turning the aircraft becomes easier.

Hereinafter, embodiments of the present invention will be described based on the drawings.

A frame 4 on which an engine 3 is mounted is connected to a transmission case 2 on which a pair of left and right propulsion wheels 1 are mounted. A simple riding type reaper as an example of a mobile agricultural machine is constructed by detachably attaching a riding device 6 and attaching a reaper 7 to the front part for reaping planted stem culms and discharging them to one side of the machine body. be.

To configure the reaping machine 7, as shown in FIG. 1, a clipper-type reaping device 10 is attached to a support frame 9 which is connected to the transmission case 2 via a parallel quadruple link mechanism 8 so as to be able to move up and down. A plurality of tapered fixed dividers 11 are protruded from the front of this reaping device 10 in a forward downward tilting position, and below the rear wide portion of the divider 11, a rotating device is installed in a forward downward tilting position that is approximately the same as the divider inclination angle. The star wheel-shaped rotary back car 12 is rotated, and the back car 1 is rotated from below the tip of the divider 11 in the forward downward tilting position.
2. A belt 13 with protrusions that rotates toward the lower part is disposed, and locking claws are attached at appropriate pitches to an endless belt that rotates horizontally or in a substantially horizontal plane above the rear of the reaping device 10. A tiered horizontal conveying device 16 is provided, and the planted stem culms are pulled up and pulled up by the protruding belt 13 and the picker 12 as they run, and the harvested stem culms are transferred to the upper and lower two tiered horizontal conveying devices 16. Therefore, they are sequentially transported and discharged to one side of the fuselage.

As shown in FIGS. 1 and 2, the passenger device 6 includes a driver's seat 18 attached to one end of an arm 17 detachably connected to the frame 4, and a cylindrical seat provided at the front and rear intermediate portions of this arm. A caster wheel 20 is attached to the boss portion 19 so as to be rotatable around the vertical axis Y. A first pedal 22 is integrally connected to the yoke member 21 of the caster wheel 20, and a second pedal 23 is attached rotatably around the vertical axis Y, and the second pedal 23 and the transmission case A steering clutch 24 for the left and right propulsion wheels 1, which are installed inside the drive wheel 2, is interlocked with a release wire 25. The first pedal 22 and the second pedal
The pedals 23 are arranged in close proximity to each other so that they can be operated independently or simultaneously.
As shown in Figure 3 (b), by using a steering mode that follows the curved row of stem culms by turning the stem around the vertical axis Y, and by depressing the second pedal 23, the left and right A slow turning steering mode in which the steering clutch 24 for the propulsion wheel 1 is selectively operated to make a large turn using one of the propulsion wheels 1, and a slow turning steering mode in which the steering clutch 24 for the propulsion wheel 1 is selectively operated, and the first pedal 22 and the second pedal 23 are simultaneously depressed As shown in FIG. 3C, the steering mode is configured to be switchable between a steering mode that actively makes sharp turns.

In addition, 26 in the figure is a cutting height adjustment lever that changes the height of the reaper 7 from the ground with respect to the planted stem culm.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings show an embodiment of the mobile agricultural machine according to the present invention,
Figure 1 is an overall side view, Figure 2 is a perspective view of main parts, Figure 3
Figures A, B, and C are action explanatory diagrams showing steering modes. DESCRIPTION OF SYMBOLS 1... Propulsion wheel, 18... Driver's seat, 20... Rolling wheel, 22... Steering pedal, 23... Steering clutch pedal, 24... Steering clutch, Y... Vertical axis center.

Claims (1)

[Scope of utility model registration request] In a mobile agricultural machine equipped with a pair of left and right propulsion wheels 1, 1, and a wheel 20 for supporting a driver's seat 18, which is configured to be steerable, the wheel 20 is attached to the support portion of the wheel 20, and the wheel 20 is aligned with the vertical axis. A pair of left and right steering pedals 22, 22 for steering around Y are installed separately on the left and right sides of the vertical axis Y, and a pair of steering clutches 24 for intermittent power to the propulsion wheels 1, 1 are installed. .
3 are distributed to the left and right sides of the vertical axis Y and are arranged close to the steering pedals 22, 22, and furthermore, these steering pedals 22, 22 and steering clutch pedals 23, 23 The mobile agricultural machine is characterized in that it is configured to enable simultaneous operation of simultaneously rotating the and in the same direction around the vertical axis Y, as well as independent operation of moving each of them relative to each other around the vertical axis Y. .