JPH08154420A - Course-guiding apparatus of walking type movable agricultural machine - Google Patents

Abstract

PURPOSE: To provide the subject apparatus capable of confirming course of a machine body while watching finishing degree without frequently turning back to the backward direction by ascertaining a retreating direction in the rear of a movable agricultural machine based on matching of a marking line of a mirror with an indicating rod. CONSTITUTION: A well-known back mirror is used as a mirror 21 and the mirror 21 is fixed to a multiframe 14 by a fixing tool 24. Three marking lines are displayed at equal interval on the plane of the mirror 21. A rod-like member is used as an indicating rod 23 and vertically fixed to a handle 17 by a fixing tool 25. Then, the marking line of the mirror 21 is made to coincide with virtual image, and further, virtual image of scene behind the machine body reflected on the mirror 21 is made to coincide with the marking line. Since eye direction of an operator is settled by matching the marking line with virtual image of the directing rod 23, a walking type movable agricultural machine 10 can straightly be retreated.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention is used to walk a mobile agricultural machine straight back towards a rear target.

[0002]

2. Description of the Related Art A small agricultural machine such as a ridger, mulch or return cultivator is operated while an operator walks backward together with a machine body that moves with a handle.

In this case, since the worker is in a posture in which his or her back is turned to the traveling direction of the machine body, it is necessary to straighten the course of the machine body while continuously looking back toward the back during the work.

[0004]

On the other hand, the operator must look to the front and also monitor the finished state of the work such as the finished condition of the ridges and whether the mulch film is properly covered. Must walk backwards and alternate between front front and back rear. For this reason, the conventional walk-behind mobile agricultural machine consumes less physical strength and is more prone to fatigue than the riding type.

Some aircraft have a rearview mirror for the purpose of improving this point. However, in the case of the walking type, the position of the operator with respect to the aircraft is not fixed, and the scenery reflected in the rearview mirror is apt to change. It took a considerable amount of skill to retreat the aircraft straight while looking at the mirror.

It is therefore an object of the present invention to provide a route guide device which enables a walking type mobile agricultural machine to be retracted straight with a little labor even if it is not a skilled person, and solves the above inconvenience.

[0007]

In order to achieve the above object,
The present invention installs a mirror in the front part of a walk-behind mobile agricultural machine, and sets a pointing rod in the rear part of the mobile agricultural machine so that it can be seen behind the mirror, and on the surface of the mirror. It is characterized in that the indicator rod is aligned with a vertical marking line to be formed and the traveling direction behind the mobile agricultural machine is determined and the mobile agricultural machine is retracted.

[0008]

According to the above construction, with the mark line of the mirror and the pointing rod reflected in the mirror aligned, the aircraft is moved backward while aligning a point (for example, a standing tree) of the rear view reflected in the mirror with the mark line. By thus aligning the marker line and the virtual image of the pointer, the position of the operator's eyes is determined. Then, the machine body can be moved straight backward by aligning the rear view reflected in the mirror with the determined operator's eyes to the mark line. Therefore, the operator only needs to look at the mirror on the front of the machine to reduce the amount of movement to turn around and to pay attention to the finished state such as the finished condition of the front ridge and whether the mulch film is properly covered.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG.

Reference numeral 10 is a mulch for covering the ridge with a film. 11 is an engine section, 12 is a reduction section, 13 is a drive section,
Reference numeral 14 is a multi-frame, 15 is a drive unit frame, 16 is a plowing rotor, 17 is a handle, 18 is a handle, and 19 is a connecting hitch.

The route guidance device 20 of the present invention comprises a mirror 21, a marking line 22 and an indicator rod 23.

A known rearview mirror is used for the mirror 21,
It is fixed to the multi-frame 14 by the fixing tool 24. Then, the three mark lines 22 of the filament are displayed on the mirror surface of the mirror 21 at equal intervals. The mark line 22 may be one or two, or four or more. Further, it is not limited to a line and may be a dotted line.

A rod-shaped member is used as the indicator rod 23 and is vertically fixed to the left side of the handle 17 by a fixture 25.

Further, a side clutch lever 26 is provided on the handle 17 so that the engine 11 to the drive unit 1 can be operated.
Intermittent power to 3.

The multi-frame 14 includes a connection hitch 19
There is a main frame 27 connected to the main frame 27. The left and right frames 28, 28 extend forward from the left and right ends of the main frame 27, and the center frame 2 extends from the center of the main frame 27 in the left-right direction.
9 extends forward. Further, a groove plate 30 is arranged at the lower end of the main frame 27. The main frame 27 supports the film hanging roller 31 and the compression roller 32, and the left and right frames 28, 28 are respectively the film pressing wheels 3.
3 and the soil cover 34 are supported.

Next, a method of using the route guidance device 20 will be described.

The worker O fixes the position of the line of sight by aligning the virtual image I of the pointing rod 23 with the line of mark 22 of the mirror 21, and further aligns the virtual image of the standing tree A behind the machine with the line of the target line. . In this way, the marking line 22 and the indicator rod 23
The operator retreats the machine body straight while adjusting the course in the L or R direction while matching the three points of the standing tree A (see FIGS. 2 and 4).

For example, the virtual image I of the pointing rod 23 is the mark line 22.
If the virtual image A1 of the standing tree A reflected on the mirror 21 is not aligned and is displaced to the left of the mark line 22 as shown by the dotted line in FIG. 3 (see FIG. 3), the left side clutch lever 26 is gripped As a result, the transmission of power to the left drive wheel 18 is cut off, and the course of the machine body is changed in the L direction.

As a result, the virtual image A1 of the standing tree A moves in the R direction in the mirror 21, and when it meets the mark line 22 as shown in FIG. 2, the left side clutch lever 26 is released to connect the power and retreat the aircraft straight. Let

When the virtual image A2 of A reflected on the mirror 21 is displaced to the right of the mark line 22 as shown by the alternate long and short dash line in FIG.
The right side clutch lever 26 changes the course of the aircraft in the R direction (see FIG. 4). As a result, the virtual image A2 of standing tree A
Moves in the L direction and meets the mark line 22, the right side clutch lever 26 is released to retract the aircraft straight.
In this way, the virtual image I of the marking line 22 and the indicator rod 23 and the standing tree A
By manipulating so that and, the aircraft can be retracted straight toward the standing tree.

When the mulch 10 is moved backward by the above-mentioned route guide device 20, the indicator rod 2 is attached to the mark line 22 of the mirror 21.
By matching the virtual images I of 3 and further aligning the virtual image A1 of the scenery A behind the fuselage that moves to the mirror 21 with the landmark line 22,
It is possible for the operator to check the finishing condition of the multi-tasking without frequently turning around backwards and to easily move the multi-10 back straight.

Although the multi-frame 10 in which the multi-frames 14 are connected has been described in the present embodiment, the course guiding device 20 of the present invention can be applied to other walking type mobile agricultural machines such as a ridger.

[0023]

As described above, according to the present invention, when the walking type mobile agricultural machine moves backward to perform the work, the operator faces the front and sufficiently finishes the completion of the ridges and the coating of the mulch film. At the same time, you can check the course of the aircraft by observing the front mirror while monitoring.

Therefore, according to the present invention, when working while walking backward together with the machine body, the operator can check the course of the machine body while carefully monitoring the finishing condition without frequently turning around the rear side, and the skilled worker Even if it is not, the walk type mobile agricultural machine can be retracted straight with a little labor.

[Brief description of drawings]

FIG. 1 is a side view of a walk-behind mobile agricultural machine including a route guidance device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a state in which a virtual image of a scene matches a landmark line of a mirror.

FIG. 3 is a diagram showing a state in which a virtual image of a scene is displaced leftward or rightward with respect to a mark line of a mirror.

FIG. 4 is an operation explanatory view showing the arrangement of a mirror, an indicator rod, and a landscape.

[Explanation of symbols]

 10 multi 14 multi frame 17 handle 20 route guidance device 21 mirror 22 marking line 23 indicator rod

Claims (1)

[Claims] 1. A front part of a walk-behind mobile agricultural machine is installed with a mirror facing rearward, and a pointing rod is erected at the rear part of the mobile agricultural machine so as to look behind the mirror, and the surface of the mirror. A path guidance device for a walk-type mobile agricultural machine, characterized in that the indicator rod is aligned with a vertical marking line formed on the rear side of the mobile agricultural machine to determine the backward traveling direction of the mobile agricultural machine, and the mobile agricultural machine is retracted.