JP3035457B2 - Trace marker device for paddy field machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trace marker device for a paddy field working machine used for straightening a paddy field working machine such as a rice transplanter at the time of planting seedlings.

[0002]

2. Description of the Related Art Conventionally, as a trace marker device in a paddy field working machine, one disclosed in Japanese Utility Model Publication No. Sho 63-27542 is known.

[0003]

However, when the trace marker device is used, only the marker at the tip of the marker mounting rod protruding to the operating position swings, so that parts other than the marker contact the ridge and the like. Then, since there is no escape mechanism, the trace marker device is damaged, and especially when the paddy field machine comes in reverse as described above, the marker mounting rod does not move forward from the use position, so even if there is a slight obstacle, the trace marker device Since the device is damaged, it is necessary to pay attention not only to the backward confirmation but also to the contact of the trace marker. If the obstacle comes into contact with the marker mounting rod or the like as described above while the paddy field working machine is moving forward, the marker mounting rod falls down in the storage direction and the work is interrupted. Since a mechanism for holding the mounting rod is required, there has been a problem that the structure is complicated.

[0004]

A trace marker device for a paddy field working machine according to the present invention for solving the above-mentioned problems is provided by a swing arm 1 which can protrude to the side of the machine body 6 when planting seedlings or the like.
6, a marker 17 formed of an elastic body at the tip of the swing arm 16 is elastically supported so that the marker 17 can be vertically adjusted in position, and the base end of the swing arm 16 is elastically attached to the mounting arm 27 in one direction. The mounting arm 27 is rotatably supported on the body 6 side, and
7, an operating position in which the swing arm 16 projects to the side of the fuselage 6 and is elastically held, a retracting position swinging in the retracting direction with respect to the operating position, and a retracting position against the elasticity. It is characterized by being resiliently switchable to a storage position for storing along the machine body 6 by turning over.

[0005]

The swing arm 16 swings back and forth by the mechanism described above, so that the trace marker device 14 swings from the base end, and not only when the marker 17 hits an obstacle such as a ridge but also the swing arm 16 itself. The escape mechanism of the trace marker device 14 operates even when the vehicle hits the obstacle or the like, thereby preventing the swing arm 16 from being damaged or the like, and the escape mechanism operates in the front-rear direction. However, since there is no need to worry about the contact of the trace marker device 14, it is possible to perform the operation safely by performing only the rear check. In addition, since a return mechanism after contact such as the swing arm 16 is provided, the trace marker device 14 after contact is provided.
Automatically returns to the operating position, and the subsequent work can be performed smoothly. Further, since the return mechanism from one retreat direction also serves as the storage mechanism of the trace marker device 14, the storage position is maintained. The structure can be simplified.

[0006]

1 shows a rice transplanter 1 as an example of a paddy working machine to which the present invention is applied. A fuselage 6 is fixed on a fuselage frame 4 supported by front wheels 2 and rear wheels 3, and a driver's seat 9 including a steering wheel 7, a seat 8, and the like is provided at a substantially central portion of the fuselage 6. Further, a planting device 11 is mounted behind the driver's seat 9.
Draw markers 12 are provided on both sides. A center pole 13 protrudes from the tip of the body 6.

[0007] A trace marker device 14 is provided on the left and right sides in front of the body 6. The trace marker device 14 has a swing arm 16 that can protrude left and right and a tip end of the swing arm 16, as described later. It is composed of a marker 17 and the like which are supported so that the position can be adjusted vertically. The marker 17 is attached almost vertically to the field.

Hereinafter, the planting operation of the rice transplanter 1 having the above-described overall configuration will be described. First, the drawing marker 12 on either the right or left side is adjusted up and down so that the tip contacts the field, and the trace marker device 14 is also projected to the side of the machine body 6. Next, the rice transplanter 1 is moved forward to plant seedlings, and the head is turned while leaving a headland for one round trip from the air, and the line drawing marker 1 is moved away from the field.
Raise 2. At this time, a line is drawn in the unplanted field by the drawing marker 12 in parallel with the planted seedling.

[0009] After that, the rice transplanter 1 that has turned around will plant seedlings in a direction opposite to the above-described planting direction. The drawing marker 12 on the opposite side to the above is knocked down in the same manner as above, and the next row of seedlings is planted. At this time, while tracing the planted seedling with the marker 17 of the trace marker device 14, Center pole 13 drawn marker 1
By advancing the rice transplanter 1 in accordance with the trace of the line 2, it is possible to obtain a correct adjacent streak parallel to the initially planted seedling.

Next, the configuration of the trace marker device 14 will be described. As shown in FIGS. 2 and 3, the trace marker device 14 is provided with mounting screws 19 on trace marker mounting members 18 provided at the front ends of the left and right body frames 4.
And is mounted on a mounting surface 21a of a substantially Z-shaped mounting plate 21 which is fixed so as to protrude from the body 6 in a side view.

A fixed base 26 having a spring mounting boss 22 and stoppers 23 and 24 protruding from the mounting surface 21a.
Are fixed in parallel to the mounting plate 21 with bolts 25, and furthermore, a mounting arm 2 is
The swing arm 7 and the swing arm 16 are rotatably supported about a fulcrum shaft 29. A spring mounting boss 31 is provided outside the pivot point of the swing arm 16, and spring mounting bosses 32, 33 are also provided at both ends of the pivot arm of the mounting arm 27 with the pivot point interposed therebetween. ing. Further, a stopper 27a is provided on the mounting arm 27 as shown in FIG. 4, and a fixing part 27b and a positioning part 27c are provided substantially at right angles to the stopper 27a.

The mounting arm 27 and the fixed base 26 are connected via a spring mounting boss 32, 22 by a storage spring 34 as an elastic body.
6, it is positioned substantially at right angles to the fixed base 26 in a plan view. Further, the mounting arm 27 and the swing arm 16 are also connected by a return spring 36 as an elastic body via the spring mounting bosses 33 and 31.
The swing arm 16 is positioned parallel to the fixed base 26 in a plan view when the spring mounting boss 31 of FIG.

As shown in FIG. 5, the front end of the swing arm 16 is provided with flat surfaces 37 and 38 on the front and rear sides, and the bolt 39 into which the marker 17 is inserted is connected to the butterfly nut 42 via the spacer 41. It is fixed at.
At this time, the direction of the bolt 39 is adjusted so that the marker 17 is oriented vertically as shown in FIG. A spring 43 is inserted between the flat surface 37 of the swing arm 16 and the marker 17, and the marker 1
7 is fixed by frictional force. The above marker 1
7 itself is made of an elastic body, and the lower end can be elastically bent back and forth.

The position of the marker 17 is adjusted in the vertical direction according to the conditions of the seedlings planted as described above. Hereinafter, this method will be described. The butterfly nut 42 is loosened to reduce the frictional force of the spring 43 on the marker 17. Then, in this state, the position of the marker 17 is adjusted in the vertical direction, and the butterfly nut 42 is tightened again to fix the marker 17.

The operation of the above-configured trace marker device 14 will be described below. A state in which the mounting arm 27 and the swing arm 16 project to the side of the machine body 6 as shown in FIG. 2 is defined as an operation position, and a case where the machine body 6 advances first from this state will be described. As shown in FIG. 6, when an obstacle such as a ridge abuts on the swing arm 16 or the like when the body 6 advances in the direction A, the swing arm 16 is moved about the fulcrum shaft 29 against the return spring 36. Try to rotate in the direction. At this time, since the rotation of the mounting arm 27 in the X direction is restricted by the stopper 23, the swing arm 16 eventually rotates independently so that the spring mounting boss 31 is separated from the stopper portion 27a, thereby removing the obstacle. Move to the evacuation position (two-dot chain line) to avoid. After the obstacle is avoided, the swing arm 16 is automatically returned to a position (operating position) where the spring mounting boss 31 contacts the stopper portion 27a by the function of the return spring 36.

Next, the case where the body 6 moves backward will be described. As shown in FIG. 7, when an obstacle or the like comes into contact with the swing arm 16 in the same manner as described above when the body 6 moves backward in the B direction, the swing arm 16 attempts to rotate in the Y direction about the fulcrum shaft 29. . At this time, since the spring mounting boss 31 hits the stopper portion 27a of the mounting arm 27, the swing arm 1
6 is restricted from rotating independently in the Y direction, and eventually the swing arm 16 is integrated with the mounting arm 27 and rotates in the Y direction against the storage spring 34 to avoid the obstacle. Move to position (two-dot chain line). After the obstacle is avoided, the swinging arm 16 is automatically integrated with the mounting arm 27 until the positioning portion 27c of the mounting arm 27 contacts the stopper 23 (action position) by the action of the storage spring 34. Is returned to.

When the marker 17 abuts on an obstacle such as a ridge in both the forward and backward movements, the marker 1
7 itself elastically swings to avoid the obstacle. However, when the swing range of the marker 17 itself is exceeded, the retracting operation by the swing arm 16 and the mounting arm 27 is performed.

The storage of the trace marker device 14 will be described below. As shown in FIG. 8, the swing arm 16 is forcibly rotated in the Y direction as in FIG. At this time, the swing arm 16 and the mounting arm 27 operate integrally as described above. Then, the swinging is continued until the fixing portion 27b of the mounting arm 27 hits the stopper 24 of the fixing base 26. In this case, the mounting arm 2
Since the spring mounting boss 31 of FIG.
b acts in a direction in which it continues to hit the stopper 24, and the swing arm 1 integrated with the mounting arm 27.
6 is held along the fuselage 6. That is, the trace marker device 14 is configured such that the escape mechanism for avoiding the above-described obstacle also serves as a mechanism for holding the storage posture of the swing arm 16 or the like.

[0019]

According to the present invention constructed as described above, since the swing arm swings back and forth, the trace marker device swings from the base end, and the marker hits an obstacle such as a furrow. Not only at the time, but also when the swing arm itself hits the obstacle or the like, the escape mechanism of the trace marker device works, and damage to the swing arm can be prevented.

Since the above escape mechanism works in the front-back direction,
Since it is not necessary to worry about contact of the trace marker device even when the vehicle is moving backward other than when the vehicle is moving forward, it is possible to perform the operation safely by performing only rearward confirmation.

Further, since a return mechanism such as a swing arm is provided after the contact, the trace marker device automatically returns to the operating position after the contact, so that the subsequent work can be performed smoothly. In addition, since the return mechanism from the one retreating direction also serves as the storage mechanism of the trace marker device and holds the storage posture, there is an effect that the structure can be simplified.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a riding rice transplanter.

FIG. 2 is a plan view of a trace marker section.

FIG. 3 is a front view of a trace marker section.

FIG. 4 is an enlarged plan view of a mounting arm.

FIG. 5 is an enlarged sectional view of a marker attaching portion.

FIG. 6 is a plan view showing a retracting operation of the trace marker section.

FIG. 7 is a plan view showing a retracting operation of the trace marker section.

FIG. 8 is a plan view showing a storage operation of the trace marker unit.

[Explanation of symbols]

 6 Airframe 16 Swing arm 17 Marker 27 Mounting arm

Claims (1)

(57) [Claims] 1. A paddy working machine having a swing arm (16) which can protrude to the side of the machine body (6) at the time of planting a seedling or the like, the tip of the swing arm (16) being formed of an elastic body. The marker (17) is elastically supported so as to be adjustable in the vertical direction, and the base end of the swing arm (16) is attached to the mounting arm (2).
7), the mounting arm (27) is rotatably supported by the body (6), and the mounting arm (27) is attached to the swing arm (16). ) Projecting to the side of the machine body (6) and held elastically, a retracting position swinging in the retracting direction with respect to the operating position, and a rotation beyond the retracting position against elasticity. A trace marker device for a paddy field working machine, which is resiliently switchable to a storage position for storing along the body (6) by making the storage position.