JPS595Y2 - Transplanter guide ring mounting structure - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a transplanter that plants seedlings of tobacco, cabbage, etc. collected from a nursery on a ridge surface.

This type of transplanter has a machine body equipped with a running function, and a planting mechanism that allows seedlings to be transplanted to be successively planted on the ridge surface as the machine travels, and a planting mechanism that allows seedlings to be transplanted to be transplanted sequentially in accordance with the travel of the machine body. A seedling supply mechanism is provided for supplying target seedlings to the planting mechanism.

This type of transplant machine runs through a pair of left and right running drive wheels, which are provided on the left and right sides of the machine body and spaced apart by an appropriate width so as to be able to straddle ridges, and a pair of running drive wheels, which are located in front of the running drive wheels and spaced apart in the same way. A pair of left and right guide wheels that rotate following the wheels, and depending on the model, it is positioned in front of each guide wheel and inside each guide wheel so that it can come into contact with the left and right sides of the sloped ridge during transplanting work. However, since the width of the ridge or the dimension between adjacent ridges varies depending on the field, in actual transplanting work,
It is necessary to adjust the wheelbase of the left and right driving wheels to suit the field conditions.

By the way, conventional transplanters have been constructed in such a way that the wheelbase distances of the traveling drive wheels and guide wheels must be adjusted individually.

Therefore, it is difficult to match the wheelbase of the driving wheel and the guide wheel, and it is up to the operator to adjust the wheelbase of the driving wheel and guide wheel individually depending on the ridge spacing of each field before transplanting. It was extremely troublesome for me.

The present invention was developed in view of the above circumstances, and the wheelbase distance of the left and right guide wheels is adjusted in conjunction with adjusting the wheelbase distance of the left and right driving wheels to the width of the ridge or the dimension between adjacent ridges. The present invention will be described below in detail with reference to the drawings showing embodiments thereof, with the object of providing a mounting structure for a guide ring of a transplanter that can be adjusted at the same time.

FIG. 1 is a left side view of a transplanter equipped with a guide wheel support leg according to the present invention, and FIG. 2 is a partially sectional rear view showing the mounting structure of the left traveling drive wheel.

In the figure, 1 is a machine frame on which an engine 2, a side clutch 19a, other transmission devices 19, etc. are mounted.

A cylindrical side clutch shaft outer cylinder inner member 80a is fixed to the case 19b of the transmission 19 toward the left side of the machine body, and the middle part of the side clutch shaft outer cylinder inner member 80a is fixed and supported by the machine frame 1.

This outer cylinder inner member 80a has a cylindrical side clutch shaft outer cylinder outer member 80b whose left edge is fixed to a traveling drive wheel main mounting member 83, which will be described later, on the left open end side of the outer cylinder inner member 80a. Trapezoidal reinforcing plates 83 a and 83 are fitted in the parts that are fixed to the traveling drive wheel main mounting member 83 so as to enable movement and rotation in the inner and outer directions of the fuselage.
The main mounting member 83 and the side clutch shaft outer cylinder outer member 80b are firmly fixed using the bolts b.

Furthermore, as shown in FIG. 3, a guide wheel mounting leg 41 according to the present invention, which will be described later, is welded to the outer front surface of the side clutch shaft outer cylinder outer member 80b so as to extend forward and downward.

These outer cylinder inner member 80a and outer cylinder outer member 80
b constitutes a side clutch shaft outer cylinder 80.

The side clutch shaft 81 includes a side clutch shaft inner member 81a connected to the side clutch 19a and the inner member 8.
The side clutch shaft 81 is spline-fitted to the left side of the side clutch shaft 81b, and a sprocket 84 is fitted to the left end of the side clutch shaft 81b. It is coaxially rotatably housed.

Reference numeral 83 denotes a driving wheel main mounting member made of a rectangular flat plate, the upper part of which is fixed to the outer cylinder outer member 80b, and the reinforcing plate 83a provided so as to sandwich the outer cylinder outer member 80b. , 83b are fixed on one side.

The main mounting member 83 has a hole coaxial with the side clutch shaft outer cylinder 80 or the side clutch shaft 81.
The sprocket 84 protrudes from this hole.

At the center of the main mounting member 83, there are two
Sprockets l-82a and 82b are attached.

Reference numeral 88 denotes an axle support tube, which is fixed horizontally toward the inside of the body coaxially with a hole formed in the lower part of the main mounting member 83.

An axle 85 is coaxially and rotatably accommodated in the axle support tube 88 , and a sprocket 87 fitted to the left end of the axle 85 protrudes from a hole in the lower part of the main mounting portion 83 .

Chains 89 a and 89 b are stretched between the sprockets 84 and 823 and the sprockets 82 b and 87, respectively, for transmission.

A cover 90 that covers these sprockets and chains is attached to the main mounting member 83.
0 and the main mounting member 83 constitute an axle case.

Further, an iron wheel type running drive wheel 3 is fitted on the inside of the axle 85 in the body.

Reference numeral 91 denotes an auxiliary mounting member for traveling drive wheels, which is formed by bending a round pipe at a right angle with an appropriate roundness, and the upper part is made horizontal to the support metal fitting 92 fixed to the machine frame 1.
The body is pivoted so that it can move and rotate inward and outward directions, and the lower part has an axle support tube 88 as shown in the figure.
It is rotatably pivoted on the outer peripheral surface of.

Note that the lower part of the auxiliary attachment member 91 may be pivotally attached to the inner surface of the main attachment member 83 near the fixed portion of the axle support tube 88.

Next, as described above, the guide wheel mounting leg 41, which is the main part of the present invention, has its upper end connected to the side clutch shaft outer cylinder outer member 80 so that the guide wheel mounting leg 41 extends forward and downward.
b, the lower part of the guide wheel support leg 41 is curved to form a vertical part, and a guide wheel 4 having a caster structure is attached to the lower end of this vertical part. It is located in front of wheel 3.

Then, at approximately the center of the vertical part of the guide wheel mounting leg 41, the rolling wheel 501 for correcting the traveling direction is positioned inside the guide wheel 4, so that it can come into contact with the left and right sides where the ridges are inclined during the transplanting operation, and the machine body is supported so that its running direction always follows the ridge.

The above structure also applies to the right traveling drive wheel and the right guide wheel (not shown).

As described above, the outer cylinder outer member 80 b and the outer cylinder inner member 8
0 a, the spline fitting between the side clutch shaft outer member 81 b and the side clutch shaft inner member 81 a, and the fitting between the auxiliary mounting member 91 and the support fitting 92 are all performed by the main mounting member 83 and the traveling drive. Since the wheels 3, guide wheels 4, etc. are configured to be able to move inward and outward directions of the machine body, the wheelbases of the travel drive wheels 3 and guide wheels 4 can be changed and adjusted simultaneously.

In addition, in order to prevent the wheelbase from changing during running or the spline fitting of the inner and outer members of the side clutch shafts coming apart, the left and right outer cylinder inner members 80a are attached to the machine frame as shown in the enlarged drawings in FIGS. 4A and 4B. Tightening can be performed at an appropriate location on the outside of 1.

That is, a slit 93 of an appropriate length is formed in the upper part of the outer cylinder inner member 80a, extending from the outer edge thereof in the axial direction, and continues to the inner side end of the body of the slit 93,
A circumferential slit 94 extending approximately 120° is formed along the peripheral wall of the outer cylinder inner member 80a.

Furthermore, the outer cylinder inner member 80 a before and after the slit 93
A pair of clamp pieces 95 a and 95 b are provided on the peripheral wall surface of the
are fixed, and these clamp pieces 95 a and 95 b
are bored with blank holes 96a and 96b, and one clamp piece 95a has a nut 97 screwed into a screw hole with the same diameter as the blank hole 96a, which is fixed coaxially to the blank hole 96a. The bolt (not shown) is attached to the clamp piece 95.
b. By screwing into the hole in 95a and the nut 97, the interval between the slits 93 is narrowed, thereby tightening the outer cylinder outer member 80b and moving it toward the outside of the body,
Therefore, movement of the main mounting member 83, traveling drive wheels 3, etc. in this direction is also prevented.

When using a transplanter to which the guide wheel mounting structure according to the present invention is applied, the left and right main mounting members 83 and the auxiliary mounting members 9 should be adjusted according to the distance between furrows in the field where the transplanting work is performed.
1 to the outside of the fuselage or pushed inward to change and adjust the wheelbase of the traveling drive wheels 3.

As a result, in conjunction with the change adjustment, the left and right guide wheels 4 and furthermore the rolling wheels 501 for correcting the traveling direction are adjusted to have the same width as the wheel width of the traveling drive wheels 3.

After this adjustment, the clamp pieces 95a, 95
After fixing the wheelbases of the travel drive wheel 3 and the guide wheel 4 by tightening the bolts screwed into b, the transplantation is performed.

As a result, the transplanter securely lands on the ground surface of the ridge in the field and runs stably, and the transplant is carried out approximately in the middle of the ridge.

As described above, according to the present invention, it is not necessary to change and adjust the wheelbase of the travel drive wheel 3 and the guide wheel 4 individually as in the past, but they are performed simultaneously and in conjunction, reducing the labor burden on the operator. Needless to say, the wheelbase distances of the running drive wheels 3 and the guide wheels 4 are always equal, which has the practical benefit of ensuring stable running of the transplanter.

In the above-described embodiment, the guide wheel mounting leg 41 is fixed to the outer cylinder outer member 80b, but the guide wheel mounting leg 41 is fixed to the outer cylinder outer member 80b. Of course, it may be fixed to an appropriate member such as the main mounting member 83 that moves integrally with the drive wheel 3.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a left side view of a transplanter equipped with a guide wheel mounting structure according to the present invention, and Fig. 2 is a portion showing the mounting structure for the left running drive wheel. 3 is an enlarged side sectional view taken along the line III-III in FIG. 2, and FIG. Figure 4B is a side sectional view taken along line B-B in Figure 4A. 1... Machine frame, 2... Engine, 3...
... Traveling drive wheel, 4... Guide wheel, 41.
...Guide wheel mounting leg, 19...Transmission device, 501...Rolling wheel for correcting traveling direction, 80...
... Side clutch shaft outer cylinder, 81 ... Side clutch shaft, 83 ... Travel drive wheel main mounting member, 85 ... Axle, 88 ... - Axle support tube, 91... Travel drive wheel auxiliary mounting member.

Claims (1)

[Scope of utility model registration request] In a mounting structure for a guide wheel that rotates as the transplant machine moves, which enables adjustment of the wheelbase of the driving wheel, an appropriate member that moves integrally with the driving wheel as the wheelbase of the driving wheel is adjusted. A guide ring mounting structure for a transplanter, characterized in that a guide ring mounting leg having a guide ring attached to its lower end is fixed at an appropriate portion.