JPS62111603A - Line drawing marker operation structure of rice planter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention connects a seedling planting device to a traveling vehicle body so that it can be raised and lowered, and can be attached and detached. The present invention relates to a line drawing marker operating structure for a rice transplanter configured such that a pair of left and right line drawing markers provided on an attaching device are set in an upright state against a lodging urging force.

[Conventional technology]

Conventionally, a rice transplanter having a structure in which a line marker is set to an upright position each time the seedling planting device is raised as described above has been used, for example, as shown in Japanese Utility Model Application Publication No. 57-23108. A pulley is provided at the rear end of the link mechanism that raises and lowers the device, and a wire for setting the left and right markers in an upright position is wound around this pulley, so that the pulley can be moved upward as the seedling planting device rises. Some markers are equipped with operating tools on the left and right sides for raising the marker and releasing the action of the locking mechanism provided at the base ends of the left and right markers to lower the marker.

[Problem that the invention seeks to solve]

However, if a detachable structure is configured so that the seedling planting device can be attached and detached at the rear end of the link mechanism, it is possible to avoid the trouble of winding the wire around the pulley and removing it each time the seedling planting device is attached or detached. There are certain inconveniences.

An object of the present invention is to provide a structure in which, through reasonable modification, there is no need to touch the wires for operating the marker when attaching and detaching the seedling planting device, and furthermore, the marker can be lowered from the operating section of the vehicle body. be.

[Means for solving problems]

The features of the present invention include, in the line-drawing marker operation structure with a raised configuration, a frame with an elevating structure in which a seedling planting device can be attached and detached on the traveling vehicle body side, and a seedling planting device that can be attached and detached from a predetermined surface of this frame. A pair of restricting tools are provided on the connecting frame to prevent the pair of line drawing markers from falling down, and when the seedling planting device is connected, the restricting tools are An operating piece for releasing the restriction is provided on the frame so as to be freely retractable, and by the abutting and pressing action of the protruding operation piece, the restriction of the restricting tool is selectively released, and this releasing of the restriction is performed when the vehicle is running. The operating tool provided in the vehicle operating section and the operating piece are linked together so that the operation can be performed from the vehicle operating section, and the functions and effects thereof are as follows.

[For production]

For example, if the features of the present invention are configured as shown in FIG.
When the seedling planting device (B) is connected, the operating section (A
), one of the operating pieces (31) protrudes in the direction of the connecting frame (19) as shown in Fig. 3 by swinging the operating lever (7) provided in the The restricted state of the pressed restrictor (26) is released, and the marker (14) on this side falls down.

Also, when separating the frame (18) and the connecting frame (19) in order to release the connection of the seedling planting device (B), the operating pieces (31), (31) and the regulating tool (26) are used.
), (26) makes the marker (14),
Since the structure is such that (14) is laid down, there is no need to remove wires or the like.

〔Effect of the invention〕

Therefore, by providing a structure for setting the posture of the marker on the seedling planting device side and configuring the marker so that it can be lowered by touching it from the traveling vehicle body, the marker can be lowered by operating it from the driving section. Although the seedling planting device can be easily attached and detached, a structure was obtained that does not require much effort.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in Figure 6, the front and rear running wheels (1), (2
) A boarding and driving section (A) is located in the center of the traveling vehicle body (3).
At the same time, a seedling planting device (B) is connected to the rear end of the traveling vehicle body (3) via a link mechanism (4) to constitute a riding-type rice transplanter.

The driving section (A) includes a steering handle (5), a seat (6), and an operating lever (for raising and lowering the seedling planting device (B)).
7), and the link mechanism (4) is configured to be driven and moved by a hydraulic cylinder (8), and the link mechanism (4) has a pair of left and right top links (4a), respectively.
and a lower link (4b).

The seedling planting device li& (B) also includes a transmission case (10) to which power is transmitted from the vehicle body (3) via a transmission shaft (9), and a seedling case on which mat-shaped seedlings (-) are placed. Stand (
11) A plurality of planting arms (12), which are cyclically driven by the power from the transmission case (10), cut out the seedlings from the seedling stand (11) one by one and plant them on the rice field, and a plurality of soil leveling flows. ) (13)..., and the seedling planting device (B
) is configured to be detachable from the traveling vehicle body (3).

Further, as shown in Fig. 4, line markers (14), (14) are provided at both left and right ends of the seedling planting device (B), and the markers (14), (14) are attached to the seedling planting bag. ! (B)
The robot is set to an upright state in conjunction with the rise of the robot, and is configured to be able to alternatively fall down from the upright state by operating the operating lever (7).

That is, the left and right markers (14), (14) each have their proximal ends swingably supported by a support shaft (15), are provided with a spring (16), and are biased in the direction of collapse, and further, Wire for setting upright state by pulling operation (
17) one end is connected to the proximal end.

As shown in FIGS. 1 to 3, the link mechanism (4)
The rear end is a frame whose longitudinal direction is set almost vertically (
18), and the transmission case (10) of the seedling planting device (B) is attached to a pivot boss (20) at the lower end of a connecting frame (19) that is detachable from the frame (18). The seedling planting device (B) is supported so as to be able to roll freely, and is configured to be attached and detached between the connecting frame (19) and the frame (18).

The frame (1st) and the connecting frame (19) are connected using the hook (21) formed on the rear surface of the frame (18).
An opening (19a) formed in the front surface of the connecting frame (19)
) and engage with the lower link (4b).
The swinging hook (23) provided on the side of the connecting frame (19) for the pipe frame (22) supporting the
23).

Further, an arm (2) is attached to each of the left and right top links (4a).
4), and a swing arm (25) having a U-shape in plan view is provided with the connecting frame (19), and is pivoted on both sides of the connecting frame (19) with a left-right axis (P). ) are provided to open forward, and a pair of left and right regulating devices (26) are lifted by upward swinging of the swinging arm (25).
, (26) is provided so as to be slidable in the vertical direction relative to the connecting frame (19), and the restricting tool (26),
At the lower end of (26) is the wire (17).

(17) The other end is connected.

Then, when the seedling planting device (B) is raised, the arm (24) comes into contact with the swinging arm (25) as shown in FIG. (P), and further lifts the restricting tools (26) and (26) to set the left and right markers (14) and (14) in an upright state.

In addition, the swing arm (25) has elongated holes (19b) formed in the connection frame (work 9), and a restriction tool (19b).
26).

The long holes (26b) formed in (26) pass through in the left-right direction, and the restricting tools (26),
A pin (27) is provided for lifting (26).

Further, when the seedling planting device (B) is lowered, the regulating devices (26), (26) are brought into contact with the lower ends of the left and right markers (14), (14) to prevent them from falling down. A plate (29) is provided on the connecting frame (19).

As shown in FIG. 3, a pair of left and right brackets (30), (30) are attached to the inner surface of the frame (18).
An operating piece (31) that can freely move in and out toward the rear of the frame (18)
), (31) are provided, and furthermore, this operation piece (31) is provided.
).

The lever arm (32) for moving in and out of (31) can be brought into contact with the front ends of the operation pieces (31) and (31).
It is pivotally connected to the support bracket (33) at an axis (Q).

The operating pieces (31), (31) are biased in the retracting direction by springs (34), (34), respectively, and the balance arm (32) is biased by a helical spring (35). (
One end of a release wire (36) that is urged to come into contact with the balance arm (3I) and is pulled in a direction to suppress this contact is connected to the swinging end of the balance arm (32).

In addition, as shown in FIG. 1, the operating lever (7) has two positions: an operating position (UP) for raising the seedling planting device (B), and a neutral position (UP) for stopping the seedling planting device (B) at an arbitrary level. N),
Maintaining the seedling planting device (B) in an automatic lifting control state, and
A position (DOWN) in which the seedling planting device (B) is not driven, and a position (ON) in which the seedling planting device (B) is maintained in the automatic lifting control state and the seedling planting device (B) is driven. It is configured to be operable, and in this position (ON), it is configured to be operable to left and right rocking operation positions (L) and (R) for laying down the left and right markers (14), (14). ing.

That is, when the operating lever (7) is operated to the operating position (ON), a recess (37a) into which the operating lever (7) engages is formed, and a swinging piece (37
) are provided, and left and right markers (14) are provided in response to large left and right operations of the operating lever (7).

(14) Set the release wires (3
6) a spring (38) whose other end is connected to the swinging piece (37) and for balancing with the helical spring (35);
One end of the swing piece (37) is connected to the swing piece (37).

After operating the operating lever (7) to the operating position (ON), when operating it to the right, the release wire (36
) becomes slack, and the right operating piece (31) protrudes due to the biasing force of the helical spring (35), and the plate (
29) is released, the right marker (14) is released.
) is collapsed by the urging force of the spring (16).

Also, when the operating lever (7) is operated in the opposite direction, the left marker (14) is collapsed by the tensile force of the release wire (36) as shown in Fig. 3, and the operating lever (7) can be moved in either the left or right direction. When no operation is performed, the helical spring (35) and the flap (38) are adjusted so as to be balanced.

Incidentally, the operating lever (7) is connected to the hydraulic cylinder (8).
The connecting frame (19) is configured to be able to operate a hydraulic pulp (not shown) to the
A pulley (39) for guiding the wire (17) disposed between the restrictor (26) and the marker (14) is provided at the lower end of the
(39) is provided, and a detent a structure (4) is provided so that the swinging piece (37) is held in the neutral position as shown in FIG.
0) is provided.

[Another example]

In addition to the embodiments described above, the present invention may be configured such that a movable member is provided between the operating piece and the restricting tool, and the pressing force is transmitted from the operating piece to the restricting tool via this movable member. Instead of using the operating lever, a dedicated knob or the like may be provided to lower the lever.

[Brief explanation of drawings]

The drawings show an embodiment of the line drawing marker operation structure of a rice transplanter according to the present invention, FIG. 1 is a schematic side view showing the cooperation of the operation structure, FIG. Figure 3 is a cross-sectional view of the → cotton wire in Figure 1. Figure 4 is a rear view showing the connection between the line marker and the wire. Figure 5 is a partially cutaway side view showing the line marker in a retracted state. Figure 6 is an overall side view of the riding rice transplanter. (3)...... Running vehicle body, (7)... Operating tool, (14)... Line marker, (18)...
...Frame, (19)...Connection frame, (26)...Restrictor, (31)...
Operation piece, (8)... Operating section, (B)...
・Seedling planting device.

Claims (1)

[Claims] The seedling planting device (B) is connected to the traveling vehicle body (3) so as to be able to rise and fall freely and to be detachably attached, and is provided on the seedling planting device (B) in conjunction with the raising of the seedling planting device (B). This is a line drawing marker operation structure for a rice transplanter configured such that a pair of left and right line drawing markers (14), (14) are set in an upright state against a lodging urging force, and the structure is such that a seedling planting device (B) can be attached and detached. It is configured to be carried out between a frame (18) with an elevating structure provided on the traveling vehicle body side and a connection frame (19) on the side of the seedling planting device that is detachable from a predetermined surface of this frame (18), and the above-mentioned A pair of restrictors (26), (26) for preventing the pair of line markers (14), (14) from falling down are attached to the connecting frame (1).
9), and with the seedling planting device (B) connected,
Operating pieces (31), (31) for releasing the regulation of the regulating devices (26), (26) are provided on the frame (18) so as to be freely retractable. Due to the abutting and pressing action of the protrusion, the restricting tools (26), (26
) can be selectively lifted from the driving section (A) of the traveling vehicle body (3), and this restriction can be lifted from the driving section (A) of the traveling vehicle body (3).
) and the operating pieces (31), (31
) is linked to the rice transplanter's line drawing marker operation structure.