JPH03206805A - Rice transplanter of riding type - Google Patents

Abstract

PURPOSE:To make it possible to perform a good seedling-planting work without generating any mud pushing by providing a pitching mechanism at a more front side of a machine body than a rolling mechanism. CONSTITUTION:A riding car body 1 side is longitudinally inclined for a longitudi nal inclination or an undulation of plowing ground. In said case, the inclination of the car body is quickly absorbed and corrected in a part of a pitching mecha nism 23 without affecting to a rice transplanter 13 side as the mechanism 23 is at a more front side than a part of a rolling mechanism 30, then a float 17 at the rice transplanter 13 side is able to keep a normal attitude. Therefore, the rice transplanter 13 side is always surely supported by the float 17 and the rolling mechanism is surely performed even in simultaneous generating of a transverse inclination and a longitudinal inclination of the riding car body 1 owing to a transverse inclination or an undulation of plowing ground, then a good seedling-planting work can be performed without any mud pushing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a riding type rice transplanter which is connected to the rear part of a passenger vehicle body via a link mechanism to have a μF function for raising and lowering rice transplanting operations.

[Conventional technology and its issues]

Among the conventional riding rice transplanters, there are those that have a rice transplanting machine attached to a rolling zero function and those that have a pitching machine that can perform rice transplanting operations.
As seen in the publication, when a rice transplanter is installed with a pair of left and right partial links, both links are provided with telescopic movable parts, so that the rice transplanter can be installed so that it can be twisted by the amount of play. What was known was publicly known. Also, Jikko 47
As seen in Japanese Patent Publication No. 12505, there was one in which a rolling shaft and a pitching shaft were provided on the rear hitch of the traveling vehicle body 1, and a rice transplanting machine was attached thereto.

However, these conventional types always had a pitching mechanism installed after the rolling mechanism, so
When the vehicle body vibrates back and forth, pitching inevitably occurs through the rolling shaft. In this case, if the rice transplanter rolls due to left and right movement of the tiller, the rice transplanter's longitudinal posture will continue to be uncorrected and the rolling function will not be fully utilized. There was a drawback that the float attached to the bottom pushed mud.

[Means to solve the problem]

This invention uses the following technical means to solve the above problems.

That is, in a riding rice transplanter in which a rice transplanting machine 13 having a planting device 16, a seedling tank 15, a float 17, etc. is attached to the rear of a passenger vehicle body 1 via a link mechanism 18 so as to be capable of pitching and rolling, the pitching mechanism 23 This riding-type rice transplanter is characterized in that it is installed on the front side of the machine body rather than the rolling machine 1NIt30.

〔Effect of the invention〕

When the passenger vehicle body 1 tilts from side to side as well as from front to back, the back and forth tilting has various negative effects on the LB planting machine 13, but since this invention has the above configuration,
The longitudinal tilting of the passenger vehicle body 1 is first corrected by the pitching mechanism 23, and the longitudinal tilting of the J-planting machine 13 side is extremely reduced, so that there is not much longitudinal variation in the ground contact force received by the float, and an accurate rolling function is achieved. This has the effect of allowing good seedling planting to be carried out without muddying.

〔Example〕

One embodiment of the present invention will be described in detail based on the drawings. Reference numeral 1 indicates a passenger vehicle body. 2 is a bonnet that covers an engine (not shown) mounted on an engine stand 3. Reference numeral 4 denotes a transmission case, and chain cases 5 facing rearward and downward are attached to both left and right sides of the transmission case.

Reference numeral 6 indicates a front wheel, 7 indicates a rear wheel, and 8 indicates an operator's seat, which is supported by a support 9 attached to the transmission case 4. 10 is a handle, and 11 is a change lever.

Reference numeral 12 denotes a support body, which is erected at the rear end of the transmission case 4.

Reference numeral 13 denotes a rice transplanting work machine, which includes a planting part frame 14 which also serves as a transmission box for the planting part, a seedling tank 15 and a planting device 16 supported on the upper part so as to be able to reciprocate from side to side, and a float 17 attached to the lower part. Become.

Reference numeral 18 denotes a link mechanism, which consists of an upper link 19 and a lower link 20 whose bases are pivoted to the support 12, and a strut 22 which is integrally provided with the rolling box 21 at the rear end of both links 19 and 20. It is a combination of

The upper part of this strut 22 and the upper link 1
9, a pitching mechanism 23 is configured between the pitching mechanism 23 and the pitching mechanism 23. The pitching mechanism has a structure in which a pin 24 is attached to the strut 22 side, and an elongated hole 25 is provided on the upper link 19 side through which the pin 24 can move freely in the backward direction. A spring receiver attached to the upper link 19 of the strut 24 is resiliently supported by springs 28 and 29 interposed between seats 26 and 27. And the rolling box 21
and the planting section frame 14 are provided to freely roll via an axis in the front-rear direction, and a rolling mechanism is configured rearward of the pitching machine [23].

Reference numeral 31 denotes a hydraulic cylinder device, which is composed of a cylinder 31a whose base side is pivotally connected to the Mitsushicon case 4, and a piston 31b which is pivotally connected to an arm 32 which is formed by bending the base of the upper link 19 downward. This is a device that moves up and down.

When planting seedlings with the riding-type rice transplanter configured in this way, if the tiller is tilted in the front-back direction or has unevenness during the work, the passenger vehicle body 1 side will tilt back and forth. In this case, since the pitching mechanism 23 is located in front of the rolling mechanism 30, the longitudinal tilting is quickly absorbed and corrected in this part, so that it does not affect the rice transplanting machine 13 side. Float 17 is the second
As shown in Figure 3, its posture is not disturbed (the front part does not float or the rear part sinks below the soil surface), and it can maintain its normal posture. For this reason, the rice transplanting machine 13 side is always accurately supported by the float 17, and when the tiller is tilted in the left-right direction, there are irregularities, and the vehicle body 1 is tilted left and right at the same time as the above-mentioned tilt in the front-rear direction. The rolling function can be performed accurately even when the seedlings are planted, and seedlings can be planted without muddying.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, with FIG. 1 being a side view, and FIGS. 2 and 3 being side views of essential parts showing the operating state. Symbols in the figure: 1 is the passenger vehicle body, 13 is the rice transplanting machine. 14 is a planting section frame, 15 is a seedling tank, 16 is a planting device, 17 is a float, and 18 is a link mechanism. 23 is a pitching mechanism, and 3o is a rolling mechanism.

Claims (1)

[Claims] (1) In a riding type rice transplanter in which a rice transplanting machine 13 having a planting device 16, a seedling tank 15, a float 17, etc. is attached to the rear of a passenger vehicle body 1 via a link mechanism 18 so as to be able to freely pitch and roll, the pitching mechanism 23 is provided on the front side of the machine body rather than the rolling mechanism 30.