JPS6349142Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a so-called one-wheel walking type rice transplanter whose body is supported by one wheel.

Single-wheel walk-behind rice transplanters require the rice transplanter to be lightweight, since the rice transplanter must be held in a fixed position by the operator when turning in the field or running on the road. It is necessary to install a safety cover to prevent the aircraft from becoming dirty due to mud splashing up and to cover rotating parts, etc.

The present invention utilizes the lightweight body frame structure of this type of walking rice transplanter to attach the cover body without the need for extra parts, thereby avoiding an increase in the weight of the rice transplanter as much as possible. It is designed to ensure safety and facilitate maintenance and inspection.

The following explanation will be given based on the embodiment shown in the drawings. In the drawing, 1 is a body frame of a rice transplanter, and the body frame 1 includes a transmission case 3 to which an engine 2 is attached to the upper part, and a transmission case 3 extending rearward from both left and right ends of the transmission case 3. A pair of left and right hollow side frames 4 and 5 form a U-shape in plan view, and the transmission case 3 has a front end of a swing case 6 that extends rearward between the side frames 4 and 5 and is rotatably pivoted. worn,
A running wheel 7 is provided at the tip of the swing case 6 and is located on the center line of the vehicle body frame 1. Rotationally driven.

Seedling planting cases 8 and 9 are fixed to the rear ends of both side frames 4 and 5, respectively, and the two seedling planting cases 8 and 9 are connected by a gate-shaped frame 10, such as a downward U-shape. The vehicle body frame 1 is made lighter and has improved rigidity, while the wheels 7 are moved up and down the vehicle body frame 1 by a manual or automatic wheel lifting device (not shown).
The entire rice transplanter is raised and lowered by moving it up against the ground.

Reference numerals 11 and 12 indicate a pair of left and right operating handles that extend rearward from the seedling planting cases 8 and 9, and the operating handles 11 and 12 are bent in an upwardly inclined rearward shape, and the upper surface of the inclined portion has a , both handles 1
A rear-tilting seedling stand 15 is provided between the transmission case 1 and 12 and is supported movably in the left and right lateral directions by a guide rail 13 and an upper rail mechanism 14 mounted horizontally and laterally. Seedling planting mechanisms 16, 17 are attached to the seedling planting cases 8, 9 from 3 through transmission shafts (not shown) in both side frames 4, 5.
While vertically swinging the transmission case 1, the transmission case 1, which is upside down in side view, moves between the drive shaft in one of the seedling planting cases 8 and the transverse feed mechanism 18 arranged on the back side of the seedling platform 15.
The seedling planting mechanisms 16 and 1 are connected by the transmission mechanism in 9.
The seedling stand 15 is configured to move horizontally one pitch at a time in synchronization with the vertical swinging of the seedling table 7.

Further, 20, 21 are on both sides of the wheel 7, and both side frames 4, 5 and both seedling planting cases 8,
Showing a pair of left and right floats located at the bottom of 9,
The floats 20 and 21 have their rear ends attached to the bases of the handles 11 and 12 via planting depth adjustment rods 22, and their front ends are attached to support shafts that project horizontally from the side frames 4 and 5, respectively. via a link 23 so as to be vertically movable.

The cover body 24 made of synthetic resin has a box-like shape in cross section that is open downward and longitudinally longitudinally, and is formed so as to integrally cover the upper part of the wheel 7, the upper part of the engine 2, the fuel tank 25, and the left and right side parts thereof. body 2
When the front part of the cover body 24 is rotatably supported at its rear part on the upper end horizontal member, such as a pipe made of a circular cross section, of the gate-shaped frame 10, so that the front part of the cover body 24 can move up and down, the left and right side plates 24', At the rear of 24',
An arcuate pivot portion 26 approximately equal to the outer diameter D of the horizontal member of the gate-shaped frame 10, and a pair of locking engagement protrusions 27, 27 that are connected to each other so as to face each other at the lower part of the pivot portion. Downward open pivot branch 2 consisting of
8, and the gap between both the projections 27, 27 is formed to be slightly smaller than the diameter D of the horizontal member, and the cover body 24 is formed against the elasticity of that portion.
It is constructed so that it can be detachably attached to the horizontal member of the gate-shaped frame 10. Furthermore, the cover body 2
The front part of the upper surface of 4 can be placed or locked on the upper surface of a fuel tank 25 provided near the top of the engine 2 or on a fuel injection pipe projecting upward from the upper surface of the fuel tank 25, and the lid 29 of the injection pipe is the cover body 24
It protrudes to the top side.

In addition, reference numeral 30 denotes a preliminary seedling mounting stand consisting of a pair of left and right frames attached to the gate-shaped frame 10 at positions on both the left and right sides of the cover body 24.

In this configuration, if seedling mats are supplied onto the seedling platform 15 and the wheels 7 and the seedling planting mechanisms 16 and 17 are driven by starting the engine 2, the rice transplanter will
While the seedling platform 15 is moved forward by the horizontal feeding mechanism 18, the seedling pine on the seedling platform 15 is divided into individual plants by the vertically swinging seedling planting mechanism, and then floated in advance. After the land has been leveled at each of the leveled areas No. 20 and 21, the seeds are planted in two rows in sequence in the field.

In this rice planting work, the rear part of the cover body 24 is pivotally supported on the upper horizontal member of the portal frame 10 at the rear of the vehicle body frame so as to be able to move vertically and integrally cover the upper part of the wheels 7 and the engine 2. When looking at the center marker 31 erected on the front part of the upper surface of the cover body 24, the rotating state of the wheels 7 is largely out of sight and the eyes do not flicker, making it easier to drive straight. And the rear end of the wheel 7 is the cover body 2
4 and the seedling stand 15 is tilted backwards, so the lower end position of the wheels 7 can be easily seen from the control section behind it, and the seedling stand 15 will not fall into the field when driving on a ridge.

In addition, when the aircraft is dropped from a high place with a step with its wheels down, the wheels 7 and the cover body 24 may interfere with each other even if an abnormal load is applied to the wheels and exceeds the normal buffer area of the buffer member. Just do
The cover body 24 is not damaged simply by rotating the cover body 24 at the upper end of the wheel 7 so that its front part is largely upward.

In summary, according to the present invention, the rear part of the cover body that covers at least the wheels of a single-wheel rice transplanter is attached to the upper horizontal member part of the portal frame in the vehicle body frame, so that the front part of the cover body can freely move up and down. Since it is pivoted, there is no need for parts such as special support brackets for the cover body, and the weight of the vehicle can be reduced. Furthermore, repair and inspection of the engine section, etc. can be easily carried out by simply flipping up the front part of the cover body.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a plan view of the rice transplanter, FIG. 2 is a side view, and FIG. 3 is an enlarged side view of the pivot portion of the cover body. 1...Vehicle frame, 4, 5...Side frame, 2...Engine, 7...Wheel, 11, 12...
...Control handle, 15...Seedling stand, 10...Gate frame, 24...Cover body, 24', 24'...
Left and right side plates, 28... Pivotal portion, 27, 27... Engaging protrusion.

Claims (1)

[Scope of utility model registration request] A rice transplanter in which one wheel is arranged between a pair of left and right side frames of a body frame with an engine mounted on the front part, and a seedling stand and a control handle are arranged behind the wheel. A gate-shaped frame is erected on both side frames straddling the rear, and a rear part of a cover body covering above the engine and wheels is attached to the gate-shaped frame so that the front part of the cover body can move up and down. A walking rice transplanter characterized by its pivot support.