JPS60244214A - Rice planter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention is directed to attaching a pair of left and right front wheels so that they cannot be raised or lowered by a self-propelled aircraft, and also attaching a pair of left and right rear wheels integrally to the vehicle in opposite directions. A self-propelled aircraft is added in the state that it moves up and down, and a seedling planting device is connected to the rear of the self-propelled aircraft, so that all wheels touch the ground by raising and lowering the left and right rear wheels, regardless of the unevenness of the platform. This invention relates to a rice transplanter configured to actually travel in a predetermined direction.

[Prior art]

In the above-mentioned rice planting 1#c, conventionally, for example,
As disclosed in Japanese Patent No. 2819, the rear wheels were configured to be able to be raised and lowered at all times.

[Problem that the invention seeks to solve]

In the case of conventional aircraft, the self-propelled aircraft takes a forward posture as when it is flying along the shore. When @ floated up, the left and right rear wheels rose and fell due to the weight difference between the left and right sides of the aircraft, causing the aircraft to tilt significantly to the left and right.There was room for improvement in this point.

An object of the present invention is to enable the L73- to cross over the ridge without tilting the aircraft as much as possible when the front wheels are lifted, so that work can be carried out with all wheels in contact with the ground regardless of the unevenness of the board.

[Means to solve the problem]

The present invention provides the above-mentioned rice transplanter in which the pair of rear wheels are placed in a state in which they are unable to move up and down relative to the self-propelled aircraft in a state where their respective levels relative to the self-propelled aircraft are the same or approximately the same. It is characterized by being provided with a locking mechanism that can be fixed and released, and its functions and effects are as follows.

[Effect]

The locking mechanism is operated or operated to the released state. Then, the left and right rear wheels can be raised and lowered against the self-propelled aircraft, and even if the wheels go into a recess or ride on a convex part of the tiller, the left and right rear wheels will go up and down so that all wheels are in contact with the ground. .

When the lock iaM is operated or operated, the left and right rear wheels are fixed at the above level so that they do not rise or fall, and even if one front wheel floats up, the left and right rear wheels remain on the horizontal plane. Support the aircraft horizontally as long as possible.

〔Effect of the invention〕

Accordingly, the action of the locking mechanism should be such that by setting the lock 4 to the released state, all wheels can be grounded to the ground and the planting rows will not bend, regardless of the unevenness of the tiller. As a result, we were able to safely move the aircraft, such as traversing a ridge, while preventing the aircraft from tilting to the left or right as much as possible, regardless of whether the front wheels were floating.

[Example] As shown in Fig. 8, a pair of left and right steering type front axles (la)
, (lb) and non-slip-oriented rear wheels (2a) and (2b), respectively, and has a j3i moving part (3), a driver's seat (4), etc. At the rear of the fuselage, a link mechanism (6) configured to swing up and down by means of a hydraulic cylinder !51 allows for free lifting and lowering operations, and a pivot point (Q) via a pivot connection (7). The seedling planting device (8) is connected in a state in which it freely rolls around 1, and the seedling planting device (8) is configured to transmit power from the self-propelled body to the seedling planting device (8) via the rotating shaft +91. Aircraft left and right li
The riding-type rice transplanter is configured so that the planting depth on the left and right sides can be maintained at a substantially constant level by the self-weight rolling of the seedling planting device (8) regardless of the time t@.

A pair of front wheels (la) and (lb) are connected to the transmission case (
It is attached via lψ to the mission case (11) forming the front part of the self-propelled aircraft in a state that it cannot be raised or lowered.

As shown in Figure 1, a pair of rear wheels (2a) e (2b)
The transmission case +13 is attached to the left and right ends via the axle (12a) or f'1 (12b), and the pair of left and right self-propelled aircraft Mainframe (15a) - (15b) tlc
A mounting member that connects the construction! +61 K l1iJ Connection shaft +141 is connected so as to swing up and down around the axis in the longitudinal direction of the fuselage, and due to the swinging of the transmission case (13), the left and right rear wheels (2aL (2b) are inside and opposite each other, It is possible to roll up and down with respect to the self-propelled aircraft in the direction.Then, on each side of the swing axis of the transmission case 13, there is a lock via the connecting shaft (17a) or (17b). The tool (18a) or F'! (18b) is attached swingably, and these locks (18aL (18b)
), respectively, while operating part (19a) or (19b
) by seven human operations, the free end side becomes the main frame (15a) or t'j (1
5b), and in this position, attach the spring (20a) or (d (20b)) and the spring (21a) or 1d (Blb).
When the state is maintained by action, it becomes the state of action, and! As shown by the solid line in Figure 41, the free end side is brought down to the side where the transmission case 1 is gripped, and the spring (20a) or (gob>) and the mounting tool (21a) or Ir1 (21b) are fixed in this position. The left and right rear wheels (2a) and (2b) are configured to be in a state where the action is released when the state is maintained by the action, and the left and right rear wheels (2a) and (2b) are at the same or almost the same level relative to the self-propelled aircraft, and It consists of a locking mechanism (■) that can be freely released and fixed to Fl, which is a problem in lifting and lowering the self-propelled aircraft.
When the pair of locking tools (18a) and (18bJ) are both in the operating state, the left eight rear wheels (ga) The transmission case 11 (
1, the transmission case (131) becomes unable to swing.

(- then +7 pair) Lower 7 tools (18a) - (18b
) are both Vcir I action release form WArc, o7 tool (18a) - (18b) each main frame (15
The non-contact with a) or (15b) allows the transmission case +t81 to swing.

In other words, when the locking mechanism (/21) is operated, all wheels (la), regardless of the unevenness of the #t-board,
(lb), (2aL (2b) are in contact with the ground, the left and right rear wheels (2a)-(2b) are in a state where they move up and down relative to the self-propelled aircraft, and when the locking mechanism is operated to the unlocked state, the rear wheels In order to prevent the aircraft from tilting due to the lifting and lowering of (2a) and (2b), the left and right rear wheels (2a) and (2b) should be placed at the same or almost the same level relative to the aircraft so that they do not rise or fall relative to the self-propelled aircraft. It becomes fixed at .

"Another Embodiment" In order to fix the left 15 rear 1'!' (2aL (2b) to the level in such a way that it cannot be raised or lowered and can be released, the transmission case is fixed as shown in FIG. 4 and FIG. Various configurations may be adopted, such as allowing the lock bottle prisoner to be freely pulled out and pushed through the locking mechanism 1131 and the mounting member 1131, and disabling the locking mechanism of the transmission case (13). 71
Collectively referred to as 1.

The fzill light shown in FIGS. 1 and 4 is a suspension spring for raising and lowering the rear wheel.

And, as shown in Figure 5 (the hole is a member for attaching the lock bin!
It is a spring for holding the lock bottle (231) in the working state when it is inserted into the IFjI, and is a member that holds the lock bottle (231) in the working state against the spring retainer by making it contact with the lock bin support part. .

[Application example]

In order to enable the left 15th rear wheel to move up and down in an integrated manner and in opposite directions, the transmission case parts that support the left and right rear wheels separately are pivoted vertically around the horizontal axis from the transmission case part that is fixed to the body. A pair of 1! extends so that the left and right rear wheels move up and down integrally and in opposite directions. A configuration may be adopted in which the r and % side transmission gauge portions are interlocked and connected.

For seedling planting, the locking mechanism (a) or the locking bin (2) may be connected to the clutch so that it is in the operating state when the clutch is in the disengaged state, or alternatively, the locking bin may be in the operating state when the seedling planting device (a) is in the raised state. It can be linked to the raising and lowering operation configuration of the seedling planting device, linked to the traveling transmission device so that it can be operated in high-speed running state of the self-propelled aircraft, or when moving slowly or suddenly. When linked to the marker and its operating structure so that the operating state filVc is achieved in the raised and retracted state, the locking mechanism is configured so that the rear wheels cannot be raised or lowered during non-work driving, and the rear wheels can be raised or lowered when working. It is convenient because it eliminates the need for special sweeping to switch between bins and lock bins.

[Brief explanation of the drawing]

The drawing shows an example of a rice transplanter related to Kihatsu Ff4vc, @1
The figure is a rear view of the #shaft attachment part, Figure 2 is a partially cutaway side view of the rear wheel transmission r-s attachment part, and Figure 8 is a side view of the entire rice transplanter.
FIG. 4 is a rear view of another embodiment of the rear wheel elevation lock structure, and FIG. 5 is a partially cutaway side view of another embodiment of the rear wheel elevation lock structure. (la), (ib) “' ”・before] [111, (2a
), (2b) -・" 1 wheel, (8)... Seedling planting device, (Mulberry, 13... Lock mechanism. Agent: Osamu Kitamura, patent attorney)

Claims (1)

[Claims] ■ A pair of left and right front wheels (la) and (lb) are attached so that they cannot be raised or lowered by a self-propelled aircraft, and a pair of left and right rear wheels (2a)
, (2b) are installed in one body or in the opposite direction to the self-propelled aircraft so as to move up and down with respect to the self-propelled aircraft, and the rear IC box planting device (8) of the self-propelled aircraft is connected to the rice transplanter. The rear wheel (
2a)*(2b) is provided with a releasable locking mechanism or locking mechanism that fixes the respective self-propelled aircraft in a state where the level relative to the self-propelled aircraft is the same or almost the same, and in a state where it is impossible to raise or lower the self-propelled aircraft. A rice transplanter according to claim 0, wherein the locking mechanism (73) is a mechanism for manually switching between an activated state and a deactivated state.