JPS5853925Y2 - Seedling tank for riding rice transplanter - Google Patents

Description

[Detailed explanation of the invention] This invention relates to an agricultural tractor. Generally speaking, the longer the distance between the front wheels and the rear wheels of an agricultural tractor, the more likely it will be possible to Stable running is possible without the parts floating up.

For this reason, agricultural tractors have traditionally had long frames.

The purpose of this invention is to solve the above-mentioned drawbacks by using a transmission case.

In order to achieve this purpose, this invention provides a transmission case 4 that is inclined rearward and downward in a state close to a horizontal plane at the rear end of the frame 1 on which the front wheel 2 is attached to the lower part of the front side. A wheel 3 is mounted on an axis, and a protruding frame 8 that protrudes upward is provided on the transmission case 4, and an upper link 10 and a lower link 11 are connected to this protruding frame 8 to enable vertical movement.
Further, a hydraulic cylinder for rotating the link body 12 is provided between the transmission case 4 in front of the protruding frame 8 and the arm 14 that moves integrally with the upper link 10. The device 13 is installed so as to be located in front of the rear end of the transmission case 4 to form a riding type agricultural tractor.

One embodiment of this invention will be described in detail based on the drawings. 1 is a frame of an agricultural tractor.

Reference numeral 2 denotes a front wheel, which is provided at the lower front side of the frame 1.

A rear wheel 3 is mounted on a shaft at the rear end of the transmission case 4.

The transmission case 4 has a base attached to the rear end of the frame 1 and is tilted rearward and downward.

In other words, the transmission case 4 is mounted so that a large front load is applied to the axis of the rear wheel 3.

5 is the engine, 6 is the driver's seat, and I is the steering wheel.

Reference numeral 8 denotes a projecting frame, which is attached to the transmission case 4 and stands upright, to which the base of a link body 120 consisting of an upper link 10 and a lower link 11 for attaching the work implement 9 is pivoted. has been done.

Reference numeral 13 denotes a hydraulic cylinder device; the end of the cylinder is pivotally connected to the transmission case 4, and the tip of the piston is pivotally connected to the arm 14 that is integrally attached to the upper link 10; The rice transplanting machine 9 is provided so as to be located in the front part rather than the rear end of the case 4.
It is designed to move up and down.

The rice transplanting machine 9 includes a seedling tank 17 mounted on a support shaft 16 that is provided in a planting transmission case 15 so as to reciprocate from side to side.
Seedling receiving plate 18 provided along the lower edge of the seedling tank 17
, a planting body 19 for dividing and planting seedlings one by one through a seedling dividing opening drilled in the seedling receiving plate; This is a rice transplanting machine that is used for rice transplanting.

The planting transmission case 15 is connected by the link body 12.

According to the configuration on the upper side, the transmission case 4 is attached to the frame IK with a large inclination toward the front and upward, so that the transmission case 4 itself balances the load of the work equipment installed at the rear with the rear wheels. In addition, a 'J' link body 12 is provided on the protrusion frame 8 that protrudes from the upper part of the transmission case 4.
Since the hydraulic cylinder device 13, which operates the link body 120 times, is located in front of the rear end of the transmission case 4, the transmission case 4 is tilted gently backward and downward. Although it is a link body 12
Since the zero base can be disposed at a high place, the working machine 9 can be moved largely forward in the working state without being obstructed by the hydraulic cylinder device 13.

Therefore, the front part from the rear wheel 30 can be made sufficiently heavy without making the frame 1 long, and even if the work equipment 9 is attached to the rear part with the link body 12, the front and rear length can be shortened, and stable running can be achieved. .

As mentioned above, since this invention has the above-mentioned configuration, the transmission case 4
The transmission case 4 has a structure in which it protrudes more forward than the rear wheel 30 axle and also serves as the frame 1, and the load of the transmission case 4 acts to prevent the front wheel from floating even when the work equipment 9 is attached to the rear so as to move up and down. The working machine can be moved up and down by a projecting frame 8 that projects high above the transmission case 4, a link body 12, and a hydraulic cylinder device 13 located in front of the rear end of the transmission case 4. Therefore, the installed working machine can be moved sufficiently forward without being obstructed by the hydraulic cylinder device 13, and the longitudinal length of the entire machine body can be shortened.

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of this invention. Symbols in the figure: 1 is the frame, 2 is the front wheel, 3 is the rear wheel, 4 is the transmission case, 5 is the engine, 6 is the driver's seat, 7 is the steering bundle, 8 is the protrusion frame, 9 is the work equipment, 10 is the top Link, 11
12 is a link body, 13 is a hydraulic cylinder device, and 14 is an arm.

Claims (1)

[Scope of utility model registration request] A transmission case 4 is provided at the rear end of the frame 1 with the front wheel 2 attached to the front lower part thereof, and the transmission case 4 is tilted rearward and downward in a state close to a horizontal plane. A projecting frame 8 that projects upward is provided on the case 4, and a link body 12 consisting of an upper link 10 and a lower link 11 is provided to connect the working machine 9 to the projecting frame 8 for vertical movement.
Furthermore, a hydraulic cylinder device 13 for rotating the link body 12 is installed between the transmission case 4 in front of the protrusion frame 8 and the arm 14 that moves integrally with the upper link 10 at the rear end of the transmission case 4. A passenger-type agricultural tractor that is mounted to the front of the vehicle.