JP2006149250A - Seedling transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the wrong operation of the ridge clutch lever and to improve the feeding operation by solving the problems in the conventional art that hinder the driving operation and the seedling feed operation by the driving operator. <P>SOLUTION: A ridge clutch lever for switching the seedling transplanting operation in several seedling lines among a plurality of the seedling lines is set near the step floor. The lever is allowed to project from the floor face when the clutch lever is made off and set down lower than the floor face, when the lever is turned on, and the clutch lever is surrounded with a part of the floor or an another material projecting from the floor in horizontal view. In the conventional art, the ridge clutch lever is always arranged so that it projects up from the floor face, regardless on and off, and obstructs the operations of the riding driver, when it operates the machine and supplies the new seedlings, and the careless wrong operation can be avoided. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a seed transplanter such as a rice transplanter and belongs to the technical field of agricultural machinery.

Conventionally, the thing of the structure which provided the hook clutch lever which turns on and off the planting operation | movement of the part of several strips in the vicinity of a step floor is known (for example, refer patent document 1).
JP 2002-347670 A

  In such a prior art, the saddle clutch lever always protrudes from the floor surface regardless of whether it is “ON” or “OFF”. In particular, when the saddle clutch lever is in the “engaged” state, if it protrudes from the floor surface, it may be an obstacle to the driver during driving operation, seedling replenishment work, etc., causing inadvertent operation.

  An object of the present invention is to solve the above-described problems, and to prevent erroneous operation of the heel clutch lever and to improve seedling replenishment work.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the present invention according to claim 1 is provided with a saddle clutch lever in the vicinity of the step floor that can turn on and off the planting operation of some of the plurality of strips, and protrudes from the floor surface by cutting the clutch lever. It is configured to be surrounded by a separate member projecting from or protruding from the floor below the floor surface and in plan view.

  When planting a part of a plurality of strips, only the rod clutch lever of the strip that performs the planting operation is included, and the rod clutch levers of other strips that are not planted are cut off. When the clutch is disengaged, the clutch lever protrudes from the floor surface. When the clutch is engaged, the clutch lever is positioned below the floor surface, and the clutch lever is surrounded by the floor. It is possible to prevent an erroneous operation of the lever, thereby improving seedling replenishment workability.

  In short, according to the present invention, the conventional defects can be solved, the erroneous operation of the heel clutch lever can be prevented, and the seedling replenishment workability can be improved.

An embodiment of the present invention will be described with reference to the drawings.
1 and 2 show a 6-row Ueda transplanter as an example of a seedling transplanter, and a pair of left and right front wheels 2 and 2 and rear wheels 3 and 3 are installed as front and rear wheels of a vehicle body 1. ing. An operation box 4 having an operation panel on the upper surface and a steering device having a steering handle 5 and the like are installed on the step 15 at the front upper part of the vehicle body, and a seedling planting part 6 that can be moved up and down is provided at the rear part of the vehicle body. ing. A driver's seat 9 is installed on the rear side of the control device, and an engine E that transmits power to each part of the rice transplanter is mounted below the driver's seat.

  The rotational power of the engine E is transmitted from the engine output shaft 21 to the input shaft 23 of the hydraulic continuously variable transmission (HST) via the belt 22, and from the output shaft of the HST to the mission input shaft of the mission case 10. It is supposed to be.

  The seedling planting portion 6 is mounted on the rear portion of the vehicle body so as to be movable up and down via a lifting link mechanism 7, and is configured to move up and down by an expansion and contraction operation of the lifting hydraulic cylinder 8. Note that the amount of rotation of the upper link 7a of the lift link mechanism 7 is detected by the lift link sensor S1.

  In addition, the seedling planting unit 6 includes a two-row planting device 13 and 13 having a seedling tank 11 that reciprocates left and right, and a planting basket 12 that cuts out one seedling and transplants it into the soil. ..., floats (side floats) 14 and 14 for leveling while sliding on the seedling planting surface, sensor floats (center floats) 14S and the like are provided.

  The power transmission to the seedling planting section 6 is transmitted to a planting clutch case 30 provided at the rear of the vehicle body via a work machine take-out transmission shaft taken out from the mission device in the mission case 10, and there Is transmitted to the seedling planting part 6 by the planting transmission shaft 31. In the power transmission unit to the two-row planting devices 13, 13,... Are provided with a hook clutch that can be turned on and off for each two-row planting unit. Each of these hook clutches is connected to each hook clutch lever 18 through an operation interlocking mechanism such as a wire, and is turned on and off by the operation of the clutch lever 18. The saddle clutch lever 18 is arranged to swing up and down while penetrating the rear step floor 16 located on the side of the driver's seat 9, and the lower limit of the up and down swing range is the clutch engagement position. The upper limit is the cutting position.

  At the upper limit clutch disengagement position, the saddle clutch lever 18 protrudes upward from the floor surface, and at the lower limit clutch engagement position, it is located below the floor surface and bulges forward from the front of the floor in plan view. It is configured to be surrounded by the exit floor 16a. The kite clutch lever 18 is positioned below the upper surface of the bulging floor 16a, and the bulging floor 16a itself serves to guard the kite clutch lever at the clutch disengaged position and also serves as a step. It has become. Further, as a means for surrounding the clutch lever, as shown in FIGS. 5 and 6, the same effect as described above can be obtained by surrounding the clutch lever with another guard member 16b protruding from the front surface of the floor. Can be played.

  Further, as shown in FIG. 7 and FIG. 8, even if the saddle clutch lever 18 is in the clutch “on” position or “cut off” position, the floor 16 is sufficiently hand-tight so as not to protrude from the floor surface. It is advisable to provide a lever guide groove 19 that can be inserted. According to this, since the lever does not protrude from the floor surface, it does not get in the way, and even if the step is taken, the lever is not stepped on.

  As shown in FIG. 9, when the saddle clutch lever 18 is provided in the fender 20 portion of the rear wheel 3, the operator can watch the rear wheel from the lever guide groove by turning it backward.

  In a rice transplanter equipped with vehicle body turning control means and hook clutch on / off control means, when the car body turning control is carried out after the hook planting operation is performed with the hook clutch, the hook clutch anchoring state If it is configured so that it is automatically released, it is possible to prevent a situation in which it is forgotten to release from the planting work state stopped by the saddle clutch and the process proceeds to the next process. Workability is improved.

  In this embodiment, as shown in FIG. 10, left and right rear wheel rotational speed sensors 27L and 27R are provided on the input side of the control unit 26, and an electric rod clutch motor 28 is provided on the output side. When the planting operation is completed with some of the hook clutches set to “disengaged”, and the vehicle body is controlled to turn more than a predetermined amount, based on the rotational speed difference detection results of the left and right rear wheel rotational speed sensors 27L and 27R, The control unit 26 outputs to the electric saddle clutch motor 28, and the "disengaged" state saddle clutch is controlled to the "on" state by the operation of the motor.

  Further, in the embodiment shown in FIG. 11, a lifting link sensor S1 is provided on the input side of the control unit 26, and a front-wheel differential lock solenoid 29 is provided on the output side thereof. If the height of the seedling planting part 6 exceeds a certain level during planting work in Fukada or the like, the control unit 26 outputs the front wheel diff lock solenoid 29 according to the detection result of the lifting link sensor S1, and the front wheel diff lock solenoid 29 The front and right front wheels are driven at a constant speed by operation to control the front wheels to be in a differential lock state. According to this, the straightness in Fukada is improved and the planting performance is further improved.

  Further, in the embodiment shown in FIGS. 12 to 14, the speed change lever (HST lever) 32 drives the HST by an operation in the front-rear direction across the “neutral N” position of the lever to control forward and backward movement of the airframe. It is configured as follows. The speed change lever 32 has a “planting speed” position during planting work in the forward operation area, a “moving speed” position during traveling on the road, and a “PTO” position during lateral movement adjustment of the seedling tank. In addition, the respective operation routes are arranged in the order of “planting speed”, “moving speed”, “PTO”, which are frequently operated from the side close to the driver's seat 9 toward the outside, The operability is improved by setting the least frequent “PTO” to the outermost side. Also, by setting “PTO” to the outer side, the non-brake position is prevented from being generated by a normal shift. In the past, “PTO” was positioned in the middle, so neutrality (non-brake) occurred between “moving speed” and “reverse speed”, resulting in danger on slopes. There was a problem with It could be overcome by the arrangement. In the control circuit shown in FIG. 14 in this embodiment, a neutral detection sensor 33 for detecting the neutral position of the shift lever 32 and a PTO position detection sensor 34 for detecting the “PTO” position are provided on the input side of the control unit 26. Is connected, and the brake solenoid 35 provided on the output side of the control unit 26 is controlled to operate based on the detected information. That is, when the neutral detection sensor 33 detects the neutral position by the operation of the shift lever 32 and further the PTO position detection sensor 34 detects the “PTO” position, the brake solenoid 35 is activated by a command from the control unit 26. It is controlled to a non-braking state (non-braking) so that the parking brake does not work.

  Further, as shown in FIGS. 15 and 16, when the machine is tilted to a predetermined value or more during work or movement, the speed change is made according to the detection result of the tilt sensor 36 provided on the input side of the control unit 26. The PTO control motor 37 provided on the output side of the control unit is controlled so that the lever 32 can only shift to “planting speed” or “moving speed”, and the control tool 38 is operated to operate the “PTO” of the speed change lever. It is configured to check the shift to the position. According to this, the shift lever can erroneously enter the neutral position to the PTO position, and the body can be prevented from slipping or moving on an inclined ground in a non-braking state.

  In the embodiment shown in FIGS. 17 and 18, the speed change lever 32 is linked so that the forward and backward movement of the airframe controls the aircraft and the parking brake 39 is applied by the lateral operation at the neutral position. It is composed. And at the time of this parking brake operation | movement, it is set as the structure which hydraulically locks the descent | fall of the seedling planting part by act | operating simultaneously the descent | fall lock valve 40 which locks the descending operation | movement of a seedling planting part. During maintenance work of the rice transplanter, etc., the parking brake can be used to prevent the machine from moving, and at the same time, the lowering of the seedling planting part can be locked to perform the work safely.

The embodiment shown in FIGS. 19 and 20 will be described.
A display panel 43 provided near the driving unit is provided with a tack panel type monitor 44, and a mobile phone 45 is connected to enable a hands-free conversation. By inputting the trouble location along the line and transferring the data to the service center, it is possible to prepare parts and tools before the serviceman goes to the site, and to speed up the repair. it can.

Side view of rice transplanter Same as above Side sectional view of the main part Top view of the main part Side view of the main part of the step floor Top view of the main part Side view of main part of step floor of another embodiment Front view of the main part Side view of rice transplanter main part Control block diagram Control block diagram Shift lever side view Rear view of the shift lever and its operation path diagram Control block diagram Plan view showing the control device of the shift lever Control block diagram Shift lever operation path diagram Side view showing interlocking configuration of parking brake and lowering lock mechanism of planting part Rear view of display panel Monitor display example

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling vehicle body 6 Seedling planting part 13 Two-row planting device 16 Step floor 18 畦 Clutch lever

Claims (1)

  畦 A clutch lever that can turn on and off the planting operation of some of the strips is provided near the step floor, the clutch lever is cut off from the floor surface, and enters and below the floor surface and in plan view depending on the floor. Is configured to be surrounded by another member projecting from the floor.

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