JPH034Y2 - - 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 allows the cover body that covers the upper part of the engine and wheels of this type of walk-behind rice transplanter to be attached to the vehicle body frame of the rice transplanter in an extremely simple structure so that it can be flipped up, rotated, and detached. The purpose is to do so.

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 front end of a swing case 6 extending rearward between the side frames 4 and 5 is rotatably pivoted to the transmission case 3. is,
A running wheel 7 located on the center line of the vehicle body frame 1 is provided at the tip of the swing case 6, and this running wheel 7 is connected to a chain (not shown) in the swing case 6 from the engine 2 to the transmission case 3. Rotationally driven through.

Planting cases 8 and 9 are fixed to the rear ends of both side frames 4 and 5, respectively.
9 are connected by a gate-shaped frame 10 having a horizontal member 10a extending substantially perpendicular to the direction of movement of the rice transplanter, thereby reducing the weight of the body frame 1 and improving its rigidity. The entire rice transplanter is raised and lowered by moving the wheels 7 up and down relative to the body frame 1 using a manual or automatic wheel lifting device (not shown).

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. While the seedling planting mechanisms 16 and 17 attached to the seedling planting cases 8 and 9 are vertically swung from the side frames 4 and 5 via power transmission shafts (not shown) in the side frames 4 and 5, one of the seedling planting cases 8 The drive shaft inside and the horizontal feed mechanism 1 arranged on the back of the seedling stand 15
Transmission case 19 is upside down when viewed from the side between 8 and 8.
The seedling mounting mechanisms 16 and 17 are connected by a transmission mechanism inside.
The seedling table 15 is configured to move horizontally one pitch at a time in synchronization with the vertical swing of the seedling stand 15.

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,
Both floats 20 and 21 have their rear portions planted at the bases of both handles 11 and 12 using depth adjustment rods 22.
The front ends are attached via links 23 to support shafts projecting horizontally from both side frames 4 and 5 so as to be vertically movable.

Reference numeral 24 in the figure indicates a cover body made of synthetic resin, and the cover body 24 has a downward U-shaped cross section and extends in the front-rear direction of the rice transplanter, and is formed to cover above the wheels 7 and above the engine 2. The cover body 24 is attached to the gate-shaped frame 1 at the rear so that the front part of the cover body 24 can move up and down.
0, the horizontal member 10a is rotatably supported on the horizontal member 10a at the rear of the left and right side plates 24', 24' of the cover body 24.
A cut groove 26 having a width approximately equal to the diameter D of a is provided, and the horizontal member 10 is inserted into the cut groove 26.
A pivot portion 28 is formed into which the groove 28 is rotatably fitted, and a pivot portion 28 is formed on both the left and right inner surfaces of the cut groove 26 at a portion near the opening of the cut groove 26, and the groove width dimension is set to the diameter of the horizontal member 10a. Protrusions 27, 27 are provided which are made narrower by an appropriate dimension than D, and the gap between the two protrusions 27, 27 is
The horizontal member 10a is configured to be removably fitted into the cut groove 26 in a state where it is expanded against the elasticity of the groove 8.

Note that the front part of the cover body 24 is connected to the engine 2.
The lid 29 of the fuel injection pipe of the fuel tank 25 can be placed or locked on the upper surface of the fuel tank 25 provided near the upper part or on the fuel injection pipe projecting upward from the upper surface of the fuel tank 25. It is configured to protrude from the upper surface of the cover body 24.
Further, reference numeral 30 in the figure indicates 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, and a spare seedling pine is placed on the upper surface between the two frame bodies 30, 30. It is designed to be placed.

In this configuration, if seedling mats are supplied onto the rice transplanter 15 and the wheels 7 and the seedling transplanting mechanisms 16 and 17 are driven by starting the engine 2, the rice transplanter
While moving forward, the seedling platform 15 is moved horizontally by the transverse feed mechanism 18, and the seedlings are separated into individual plants on the seedling platform 15 by the vertically swinging seedling planting mechanism, and then floated in advance. After leveling the ground in each of the average areas of Nos. 20 and 21, they are planted in two rows in sequence in the field.

In this rice planting work, engine 2 and wheel 7
Since the upper part of the vehicle is covered by the cover body 24, it is safe and the mud thrown up by the wheels 7 can be prevented from being scattered over a wide range.

This cover body 24 is rotated so that the front part of the cover body 24 can move up and down with respect to the horizontal member 10a attached to the vehicle body frame 1 through the cut groove 26 in the pivot portion 28 formed at the rear part thereof. By freely fitting and engaging, this cover body 2
4 can be flipped up and down, so repair and inspection of the engine 2 etc. can be carried out by flipping it up and rotating it.

In this case, on the inner surface of the cut groove 26 into which the horizontal member 10a is fitted, the groove width dimension is set at a portion near the open part of the cut groove 26.
By providing the protrusions 27, 27 which are made narrower by an appropriate dimension than the diameter D of 0a, the cover body 2
4 is flipped up and rotated as described above, the cover body 24 does not come off unexpectedly from the horizontal member 10a, and the distance between the protrusions 27, 27 in this cut groove 26 is widened against elasticity. Therefore, the cover body 24 can be removed from the horizontal member 10a with one touch.

As described above, the present invention includes a rear tilting seedling stand, a seedling planting mechanism, and a control handle provided at the rear of a vehicle body frame with an engine mounted at the front, and one wheel located at the middle portion of the vehicle body frame in the longitudinal direction. In the rice transplanter, a horizontal member is disposed substantially perpendicular to the direction of movement of the rice transplanter at a location behind the axle of the wheel and in front of the seedling stand, and between the horizontal member and the engine. At the rear of the cover body disposed to cover above the engine and the wheels, there is formed a pivot portion having a notch into which the horizontal member is rotatably fitted; is characterized in that a protrusion is provided in a portion near the opening of the cut groove so that the width of the groove is narrower by an appropriate amount than the diameter of the horizontal member, and the cover covers the engine and wheels. By simply forming a pivot portion having a cut groove with a protrusion on the body, the cover body can be flipped up and rotated onto the vehicle body frame, and can be attached and detached. The structure of the part that is attached so that it can be lifted up, rotated, and detached is significantly simplified, and it is possible to avoid the increase in cost and weight that would be required to attach the cover to the vehicle body frame in a way that it can be flipped up and rotated and detached. have an effect.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; 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, 16, 17...
...Seedling planting mechanism, 10...Portal frame, 10a...
Horizontal member, 24...cover body, 26...notch groove, 28...pivotal part, 27...protrusion.

Claims (1)

[Scope of utility model registration request] In a rice transplanter comprising a rear tilting seedling stand, a seedling planting mechanism, and a control handle provided at the rear of a body frame with an engine mounted at the front, and one wheel provided at the middle portion of the body frame in the longitudinal direction. , a horizontal member is disposed at a position behind the axle of the wheel and in front of the seedling stand substantially perpendicular to the traveling direction of the rice transplanter, and between the horizontal member and the engine, the engine and the wheel are connected. A pivot portion having a cut groove configured to rotatably fit the horizontal member is formed on the rear part of the cover body disposed to cover the upper part, and a pivot portion having a cut groove configured to rotatably fit the horizontal member is formed on the inner surface of the cut groove. A walk-behind rice transplanter characterized in that a protrusion is provided in a portion close to the opening part, the protrusion having a groove width smaller than the diameter of the horizontal member by an appropriate amount.