JPS5935046Y2 - Marker for riding rice transplanter - Google Patents

Description

[Detailed description of the invention] This invention is particularly based on markers in rice transplanters configured as riding-type machines, that is, lines or lines that are provided at the front of the machine and serve as markers for the machine's progress in a flooded field. This relates to a tool for drawing marks.

In other words, when a rice transplanter is configured as a riding type instead of the commonly used traveling type, worker fatigue is greatly reduced and work efficiency is greatly improved. However, in this invention, in such a riding rice transplanter, the mechanism for raising and lowering the marker is devised for the purpose of making it easier to rotate the rice transplanter.

If you do not raise the marker when accompanying a riding rice transplanter along the edge of a ridge in a flooded field, the marker, whose tip is submerged under the field, may hit the ridge and interfere with the machine's smooth movement. Or, on the contrary, it may be damaged.

However, if the marker is automatically raised when the riding rice transplanter is operated along with the rice transplanter, it is not possible to do so while the riding rice transplanter is running straight ahead while planting seedlings. Even when performing operations, the marker goes up and the line drawing function no longer works.

Furthermore, if the amount of adjustment in the direction of travel for row alignment is relatively large as described above, the markers protruding to the sides of the seedling planting area may easily push down the seedlings in the adjacent row. There is also.

The purpose of this invention is to provide a new marker for a riding rice transplanter that can eliminate the above-mentioned problems at once.

Regarding the illustrated embodiment, the structure of the marker of the riding rice transplanter according to this invention will be explained as shown in FIGS. 1 and 2.
The fuselage 1, which also serves as a mission case, is divided into two parts IA and 1B in the front and back along the dividing plane P, and the parts are connected rotatably around a vertical support shaft 2, and left and right front wheels 3 are attached to the front IA of the fuselage.
The left and right rear wheels 4 are respectively supported in the rear part 1B of the fuselage, and an engine (not shown) is mounted in the engine cover 5 at the rearmost part of the fuselage 1.
The left and right rear wheels 4 are driven through the inside and left and right axle cases 6, and the support shaft 2 is configured as a power transmission shaft from the rear part 1B of the fuselage to the front part 1A of the fuselage. The upper bevel gear is meshed with the bevel gear on the transmission shaft in the rear part 1B of the fuselage and the bevel gear on the transmission shaft in the front part IA of the fuselage, respectively, to control relative rotation between the front and rear parts IA and IB. It is configured to transmit power through a permissible transmission mechanism (not shown), so that the front wheels 3 are driven from inside the front part 1A of the fuselage through the inside of the axle case 7, and at the front of the fuselage 1. A planting section 9 is provided, connected to the front section 1A of the fuselage so as to be rotatable up and down by a coupling mechanism 8 including an upper link 8a and a lower link 8b, and a float F is installed on the lower surface side of this planting section 9. The planting portion 9 is provided with a lift device 10 including a lift arm 10a.
The lower planting part 9 can be raised and lowered between a working position and an upper resting position, and the seedling stand 9a in the planting part 9 is
The horizontal reciprocating drive of the machine and the rotational drive of the planting claw 9b are performed by transmission to the planting part 9 via the transmission shaft 11 from inside the front part 1A of the machine body, and furthermore, a passenger seat 12 is provided on the machine body 1. In addition to making it possible for workers to ride on the tower, this passenger seat 1
A control handle 13 is provided in front of the fuselage 1, and by rotating the control handle 13, the rear part 1B of the fuselage 1 is rotated around the vertical support shaft 2 to steer the fuselage 1. In a riding rice transplanter in which a spare seedling platform 14 which can be raised and lowered at the rear of the passenger seat 12 is arranged above 1B,
This idea is implemented as follows.

That is, as shown in FIGS. 2 and 3, the illustrated riding rice transplanter has a pair of marking markers supported by the planting section 9 and extending to one side and the other side of the front of the machine body 1. 15 is provided, and each marker 15 has a supporting rod part 15a rotatably supported by a supporting frame 16 provided in the planting part 9 around a supporting shaft 17 along the longitudinal direction of the machine body, and this supporting rod part. The wire pulling tool 15b is suspended slightly backward from the tip of the inner wire.
The marker 15 is guided to the side operating lever 20, and by rotating the operating lever 20, the marker 15 is rotated around the support shaft 17 between the lowering position shown by the solid line in FIG. 3 and the raising position shown by the chain line in FIG. It is made so that it can be forced.

As shown in Fig. 4, the front part 1A of the fuselage and the rear part 1A of the fuselage
A pair of left and right body rotation amount regulating devices 21 are provided between the machine body B and a stopper arm 21a fixed to the side surface of the front body part 1A and a stopper arm 21b fixed to the side face of the body rear part 1B, When the relative rotation between the front part 1A and the rear part 1B of the fuselage reaches a certain amount during the rotation of the fuselage, the stop arms 21a and 21b come into contact to restrict and prevent further relative rotation. Device 21
is provided, and this left and right body rotation amount regulating device 21
A mechanism is provided to automatically rotate the operating lever 20 in the upward direction of the marker 15 when the aircraft rotates.

That is, as shown in FIGS. 4 and 5, the support shaft 22 protruding from the main shaft arm 21b on the side of the rear part 1B of the fuselage,
The fork 23 is inserted through the elongated hole 23a along the longitudinal direction of the fuselage 1.
One end of the inner wire 24a is fixed to this fork 22, and one end of the outer wire 24b is fixed to the stopper arm 21 on the front part 1A side of the fuselage.
An operating cable 24 fixed to the outer wire 24b is provided, and the other end of the operating wire 24 is guided to the operating lever 20, and the other end of the outer wire 24b is connected to the operating lever 20.
The other end of the inner wire 24a is fixed to the operating lever 20, and the elongated hole 2 is connected to a movable hardware 26 to which one end of the inner wire of the operating element 19 is fixed.
6a, 27a and another movable hardware 27 that is loosely connected via a pin 28, and when the front and rear parts of the aircraft IA and 1B rotate by more than a certain amount when the aircraft is rotated by operating the control handle 13, the aircraft According to the rotating direction, either the left or right operation element 24 performs a pulling action after moving the elongated hole 23a length 11, and moves the operation lever 20 via the moving hardware 27.26 to the lowering action position of the marker 15 shown in solid line in FIG. The operating lever 2 is rotated to move the marker 15 upward from the position indicated by the chain line in FIG.
The automatic rotation of 0 occurs when the amount of rotation operation or rotation angle of the operating handle 13 is small, and the amount of play in the long hole 27a length 12 and furthermore the length 11 of the long hole 23a Accordingly, in addition to the automatic rotation of the lever 20 described above, the marker 15 can also be raised and lowered by manually operating the operating lever 20 independently.

Of course, the stopper arm 21b may be directly connected to the marker 15 by a connecting means having such play.

The marker 15 of the riding rice transplanter according to the present invention has been described above with respect to one embodiment. In addition to being able to be automatically rotated to the raised position by rotational displacement, it is also possible to automatically rotate to the same raised position in direct association with rotational displacement of the control handle 13, In short, the marker for the riding rice transplanter of this invention has a connection with play between the marker, which is raised and lowered by the operating lever, to the operating handle or a movable member that is interlocked and connected to the operating handle so that it can be displaced by operating the handle. and the amount of play of the above-mentioned connecting means is set such that the marker is raised by a displacement of a certain amount or more of the movable member, and the marker is allowed to be independently raised and lowered by the operating lever. It has the following advantages.

In other words, the marker of this invention is automatically raised when the riding handle is operated by the amount that the riding rice transplanter can handle, and when the riding rice transplanter is accompanying the marker, the tip part is lowered below the field surface. The operation of raising the immersed marker in order to prevent it from hitting a ridge or the like and preventing the aircraft from moving smoothly, or conversely from being damaged, does not require any special human operation. Since this is done automatically, it is easy to operate when the machine is moving around, and it is also possible to change the position of the machine after going around so that it is not adjacent to the planted area, which is a particular problem when accompanying a riding rice transplanter. This allows the worker to concentrate as much as possible on matching the seedlings, reducing the worker's nervous fatigue, and also eliminates the problem of forgetting to raise the marker when accompanying the machine, which hinders smooth rotation of the aircraft and damages the marker. It becomes.

Moreover, the marker of the riding rice transplanter of this invention has a tendency to frequently adjust the direction of travel to align the rows when planting seedlings while driving the riding rice transplanter straight in a flooded field. On the other hand, by appropriately setting the amount of play in the above-mentioned connection means, it is possible to prevent the marker from being raised during slight aircraft turning operations to correct the traveling direction. , the marker can perform the line-drawing function as required, and the amount of correction in the direction of movement is large when the aircraft rotates slightly to correct the direction of movement, and the seedlings in the row adjacent to the marker are pushed down. If there is a risk, the marker can be raised using the operating lever to prevent such inconvenience from occurring.

[Brief explanation of the drawing]

Fig. 1 is a side view of a riding rice transplanter equipped with an embodiment of this invention, Fig. 2 is a plan view of the riding rice transplanter, Fig. 3 is a front view of main parts of the riding rice transplanter, and Fig. 4 is a side view of a riding rice transplanter equipped with an embodiment of the invention. The figure is a plan view of the main parts of the riding rice transplanter, and FIG. 5 is a partially vertical side view of the main parts. 1A: Front of the fuselage, 1B: Rear of the fuselage, 2: Vertical support shaft, 13: Control handle, 15: Marker 17... Support shaft, 19... Operation cable, 20... Operation lever 21... Body rotation amount regulating device, 21a,
21b... Stopper arm, 22...
・Spindle, 23... Fork, 23a...
・Long hole, 24... Operation cable, 24a...
・Inner wire, 24b... Outer wire, 26.27... Moving hardware, 26a, 27a
...long hole, 28 ... pin.

Claims (1)

[Scope of utility model registration request] The marker, which is raised and lowered by the operating lever, is operatively connected to the operating handle or a movable member that is interlocked and connected to the operating handle so as to be displaced by operating the handle, and the above-mentioned connecting means. The amount of play is set such that the marker is raised by a displacement of a certain amount or more of the movable member, and the marker is allowed to be raised and lowered independently by the operation lever. machine marker.