TW201234955A - Work vehicle - Google Patents

Abstract

The invention provides a work vehicle, capable of enabling a work machine to be lifted in a shorter time during reverse travelling, without the need of a standby period under stop travelling status, and preventing the travel speed from rising excessively when travelling reversely. A travel vehicle body is disposed with a freely-lifting seedling transplanting device, an engine; a speed change device to perform speed change to the power of the engine and perform transmission to a travel device; a travel operation lever to operate the speed change device to change the travel speed, constituted into which can be sequentially operated to a forward travel region, a forward-reverse stop region and a reverse travel region; and a control device corresponding to an operation position of the travel operation lever to control rotational speed of the engine. With the control device, a rotational speed of the engine while operating the travel operation lever within the reverse travel region to an operation position closer to a low-speed side compared to a maximum speed position, is greater than that of the engine while operating the travel operation lever within the reverse travel region to the maximum speed position.

Description

201234955 IV. Designated representative map: (1) The representative representative figure of this case is: (1) The symbol of the representative figure is simple 5~transmission device; 7~ seedling transplanting device; 13~the accelerator pedal; 3 0~ lifting device; 12 0~speed detecting means; 140~ auxiliary shifting lever; 16 0~throttle operation detecting section; 18 0 ~ lifting lever; (3) diagram. Single explanation: 6~ engine; 1 0~ travel operating lever; 20~ engine throttle; 110~retracted position detecting unit; 130~ ascending detecting unit; 150~ sub-shift lever position detecting unit; 170~ mode selecting unit; 0 ~ control device. 5. If there is a chemical formula in this case, please reveal the most money display (four)

helmet. [Subject A* **> [Explanation of the Invention] [Technical Field of the Invention] The present invention relates to a work vehicle that connects a work machine such as a seedling transplanter to a rear portion of a vehicle body to perform various operations, and belongs to agricultural machinery: Field of surgery. [Prior Art] When the work vehicle of the work machine is retracted at the side of the field, in the past, the connection with the seedlings was carried out. For example, when the seedlings were inserted, the machine was 2 2 〇! The speed test, 夕-^ '夕^ travel lever to operate to reduce the engine speed, then two = if the above method to make the sleeve cup # to drive the power from the engine, the field lift lifting device The rate of increase will slow down. Therefore, it is necessary to wait for the retreating operation until the seedling transplanting device rises to a height not higher than the field at a position very close to the field, and there is a problem that the work efficiency is lowered. = When the weight of the rank seedling transplanting device is large, the lifting and lowering speed will be slow, and there is a problem that more standby time is consumed. Dream-removal: The lifting of the seedling transplanting device described in Patent Document 1 is: when Suzuki is performing the retreating operation as described above, the seedlings are inserted into the plant; the rise is 'but to avoid the rise due to the decrease in the engine speed. The speed is reduced and the work efficiency is low, and it is disclosed as a structure as shown below. The traveling shifting device (for example, HST (when the hydrostatic reversible stepless shift is switched to the forward retreat stop region), in order to be located only at the ' During the position, the rising speed of the seedling insertion vibration is increased, and the throttle device is operated at the same speed by energizing the solenoid officer, and the engine speed is controlled to be higher than usual, and the engine speed is controlled to be higher than usual. After moving to the reverse travel position, 'lower the engine speed to the speed set by the travel lever. | That is, when the travel lever of the line shifting device is set to the reverse stop position, 'pass control is normal In the case of a rapid engine speed, the rotation of the working machine is increased by a higher speed. 3 201234955 Patent Document 1: Japanese Patent Laid-Open No. 7-123817 However, in the configuration of the lifting device of the seedling planting device of the conventional agricultural working machine, the engine speed is increased when the traveling operation lever is located in the forward/reverse stop region, and therefore, in the standby state of the reverse, if the operator cannot wait for the operator When the seedling planting device is still in the middle of the ascent, the driving operation lever is moved to the retreating low-speed traveling position, and since the working machine has not yet fully risen, it may come into contact with the field raft. In order to avoid the problem, it is necessary to drive. The standby state is performed until the rank seedling transplanting device rises to a predetermined height. [Explanation] An object of the present invention is to provide a standby time in a state where the stop is not required, and the work machine can be made to be in a reverse travel. The work vehicle that has been raised in a shorter period of time. The purpose of the present invention is to prevent the travel speed of the vehicle body from being over-goed when the vehicle body is moved backward, and the zinc servant left the meal U to rise... Operation to improve work efficiency. In order to solve the above problems, the present invention describes the present invention. It is characterized in that: the vehicle body 2 is characterized in that the material body 2 is provided with a lowering through the link mechanism 8 and is provided with a lift that raises and lowers the above-mentioned link mechanism 8 and shifts the power to a row to perform a shift of 201234955 degrees. The travel operating lever 10 is configured to be sequentially operable to the forward travel region, the forward/reverse travel stop region, and the reverse travel region, and to provide a control device f 200 corresponding to the operation position of the row-sensitive operating lever ι Controlling the engine speed, the control device causes the engine speed to be higher than when the travel operating lever 10 is operated in the reverse travel region to the lower speed side than the 3 position: when the line is in the reverse travel area In the present invention, the work vehicle described in the first aspect of the invention is characterized in that the work vehicle is configured as follows: when the dragon operating lever 1G is operated When the back travel area side in the forward retreat stop area is reached, the seedling planting device 7 rises, and the above control is set to 2 Engine speed at the travel operation lever 10 is operated to said forward-reverse stop region f in the reverse running side region than when the travel operation lever 10 is operated to reverse the travel area of the lowest engine speed. Further, the present invention described in claim 3 is the work vehicle according to the first aspect or the second aspect of the invention, wherein the control device is configured as a lower configuration, and a plurality of control modes for controlling the engine speed are set and set. Mode selection operation unit #17G, the mode selection operation unit m = a plurality of control modes select one control mode, and the control device 2〇. The control mode selected by the pull type selection operating member 17 is used to control the engine speed in the forward travel region of the idle lever 10, and in the backward (4) field of the above-described 2 operating lever 10, to be selected from the above The control pull-independent way is controlled to a predetermined launch 5 201234955 machine speed. Further, the present invention described in claim 4 is a work vehicle according to the first aspect of the invention, in which the accelerator pedal 3 is provided for the increase/decrease operation of the engine speed in the traveling car body 2, and the operation is performed. Rod 1. Operation to the highest speed position in the reverse travel area: = The accelerator pedal 13 is operated, and the above control device 2 () () also increases the engine speed. Further, the present invention described in claim 5 is the work vehicle according to claim 3, wherein the traveling vehicle body 2 is provided with an oil (10) plate 13 for performing an increase or decrease of the engine speed, and (4) operating to the retreat The highest speed position in the area, if the above description = the pedal 13 is operated 'the above control device 2 〇〇 also increases the engine speed. Further, the present invention described in claim 6 is the work vehicle according to claim 1 or 2, wherein when the rise detecting unit #13 detects that the rank seeding device f7 has risen to a predetermined height, When the travel operating lever 10 is operated to the highest speed position of the reverse travel, the control device 200 uses the engine speed as the maximum rotational speed in the reverse travel region. According to a seventh aspect of the invention, the work vehicle according to the second aspect of the invention is characterized in that the lift detecting means 13 detects that the seedling transplanting device 7 has risen to a predetermined height. When the travel operating lever 10 is operated to the reverse travel region side in the forward/reverse stop region, the control device 2 causes the rise detecting member 130 to detect that the seedling transplanting device 7 has risen to a predetermined height. The engine speed is lower than the rise detection component 13〇2二6 201234955 The autumn seedling planting device 7 rises to the predetermined ancient _ rpm. In addition, the engine before the situation is used, and the work vehicle described in the eighth aspect of the present invention is the work vehicle described in the sixth aspect of the present invention: arrogant, hit 4〇^L field 哽 哽 刼 刼The lever 140, the auxiliary shifting lever 140 switches the driving speed of the above-mentioned traveling vehicle body & 4 + Z to the driving speed of the planting operation and the movement speed of 5I|^ 4„ If the operation of the field 1Jk speed lever 14〇 is switched to the f-throwness, the control device 2〇0 will be the engine when the above-mentioned row operation lever 1Q is operated to the highest speed position of the reverse movement. The present invention according to claim 9 is characterized in that the work vehicle described in claim 7 is provided with a sub-shift operating lever 140 that drives the above-described traveling speed. (4) The line feed degree (4) is the speed of the line at the time of the planting operation and the speed of the line when moving, and if the auxiliary shift lever 140 is operated, the speed is changed to the traveling speed when moving, and the driving operation lever 1 is operated to Forward and backward stop zone In the middle of the retreating zone side, the above-mentioned control device 200 佶 left μ, +, ,, the engine speed when the upper sag detecting means 1 130 detects that the seedling transplanting device 7 has risen to a predetermined height. The engine speed before the case where the seedling transplanting device 7 is raised to a predetermined height is detected by the rise detecting member 13A. The present invention described in claim 10 is the work described in claim 1 or 2 having the following features. Handle: a speed detecting member 12 that detects the traveling speed of the traveling vehicle body 2, and if the driving operation 柃1 〇 is operated to the reverse running region, the speed detecting member 120 detects that the traveling speed has reached In the case of the predetermined speed, even if the above-mentioned operation lever _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ According to the invention described in claim 1, the control device 2 causes the travel-driving lever 10 to be operated in the reverse travel region to the highest speed. ^ The engine speed at the operation position on the low speed side is higher than the engine speed when the line lever Γ〇 is operated to the highest speed position in the retreat area, thereby preventing the traveling body 2 from being retracted In the case of the present invention described in the second aspect, the control device 2 is based on the results of the month described in the first aspect of the present invention. When the row operation lever 1 〇 is entered into the retreat stop region in the retreat stop region, the rotation speed is still lower than the engine speed when the travel operation #1〇 is operated to retreat the line sensitivity region, thereby The planting device ^ stops the position so that the time of the height of the bottom surface of the seedling transplanting device 7 is shortened, so that it can be quickly changed to the back, so the work efficiency is improved. According to the present invention described in claim 3, in addition to the effects described in claim 1 or 2, a plurality of control modes for controlling the control at the time of starting are set in the control device 2, and when the travel lever is operated 1) The engine speed can be controlled by the selected control mode, so that the engine can be operated at the engine speed of 2 operating conditions. Therefore, it is possible to perform the operation with a low output and the end of the P operation. The fuel consumption rate can be efficiently performed in a field with irregularities or inclinations by high-output operation. In addition, 'Because this is enough to prevent the engine speed from rising excessively during reverse driving, it can prevent the retreat. The speed is drastically increased, the operability of the traveling vehicle body 2 is improved, and the fuel consumption can be prevented, and the fuel consumption rate can be further improved. According to the invention of the fourth aspect of the invention, the effect of the invention described in claim 2 or 2 On the basis of this, even if the travel operating lever Μ is operated to the highest speed position in the reverse travel area 'If the accelerator pedal 13 is operated: it can be activated Since the number of revolutions is increased, the necessary engine speed can be ensured even when the vehicle is retracted, thereby improving the operability and the work efficiency. The present invention according to claim 5 is based on the effects of the present invention described in claim 3 Even if the row (4) is operated as the lever 1G to the highest speed position in the retreating region, if the oil pedal 13 is operated, the engine speed can be increased by 'cause&, and the necessary engine can be secured even when traveling backward. According to the invention of the sixth aspect of the present invention, in the present invention described in claim 6 or 2, the ascending detecting means (10) detects that the seedling transplanting device 7 is raised. When the predetermined height is reached, if the operation lever 1 is left at the highest speed position of the reverse movement, the control device 200 turns the engine speed as a t in the reverse travel area by 4, and by A, can prevent even the running operation. The operating position of the rod 10 is operated to the low speed side, and the engine speed is maintained at a high speed after the seedling planting device 7 is raised to a predetermined height. This situation is rotated. Therefore, the fuel consumption is reduced.

In addition, since it is possible to set the engine rotation speed which can prevent the sudden increase of the reverse speed in accordance with the operation of the travel operation lever 1〇, the operator can concentrate on the operation of the traveling vehicle body 2, thereby improving the operability. According to the invention of the seventh aspect, the control device 200 causes the rise detecting means 130 not to detect when the operation 捍1G is operated to the reverse travel area side based on the effect of the present invention described in the second aspect. The engine speed at the time of time is greater than the engine speed when the rise detecting member 13 is detected, whereby the seedling transplanting device 7 is raised at a high speed, so that the bottom of the seedling transplanting device 7 can be raised to a ground in a short time. The south degree of contact makes it possible to quickly switch to the reverse travel, thereby improving work efficiency. The outer heart can prevent the engine speed from being reduced at a high speed rotation after the rank seedling device 7 is raised to a predetermined high speed. According to the invention of the eighth aspect of the invention, in addition to the effects of the sixth aspect, the sub-variable ^^^^^, the cup 14〇 is switched to the shifting speed, and the row operation lever 1 is The 最 〇 的 的 最 最 最 最 最 最 最 最 最 最 最 最 最 最 最 最 最 最 最 最 最 最 最 最 最 最 最 最 最 最The operating position of the starting side is maintained at a high speed consumption after the rank seedling transplanting device 7 is raised to a predetermined height. In the case of a reversed state, the fuel consumption can be increased with the operation of the line operating lever 10, and the engine speed of the reverse speed is increased: high;:: car: 10 201234955 2 operability consumption rate. In addition, the fuel is not consumed, and the fuel is improved according to the invention described in claim 9. In addition to the effects of the invention described in claim 7, the speed of the shift when the sub-shifting lever is switched to the private movement is ' And the row (4) is operated as the rod 1G to the retreat of the sensing area side, then the control ... 00 causes the engine speed when the ascending detecting member 13 is not peeled off to be greater than when the ascending detecting unit detects: the motive speed "by Therefore, the seedlings are planted at a height of £7, so that the bottom of the seedlings i7 can rise to a height of 1' which is not in contact with the ground in a short time, so that the switch to the reverse travel can be quickly performed. Improve work efficiency. In addition, it is possible to prevent the engine speed from being maintained at a high speed after the seedling transplanting device 7 is raised to a predetermined height. Therefore, the fuel consumption is reduced. Further, since it is possible to set the engine rotation speed which can prevent the sudden increase in the reverse speed in accordance with the operation of the travel operation lever 1〇, the operator can concentrate on the operation of the traveling vehicle body 2, thereby improving the operability. According to the present invention described in claim 1 or 2, in addition to the effects of the present invention described in claim 1 or 2, the speed detecting means 丨 2 〇 is detected in a state where the traveling operation lever is operated to the reverse running region. When the set speed is reached, the control device 200 causes the engine speed to be an engine speed that does not cause the line speed to exceed the set speed, even if the travel operation lever 1 is operated to the high speed side, thereby preventing the speed expected by the operator. Driving back more quickly, so the operator can focus on the car body

S 11 201234955 2 operation. [Embodiment] Embodiments of the present invention will be described below with reference to the accompanying drawings. (Embodiment 1) The six rows of the example of the field transplant work vehicle are a plan view. Further, Fig. 3 is a block diagram showing a control processing mechanism of the down machine. Fig. 1 is a side view of the missing type passenger rice transplanter of the present invention, and is used for explaining the multiplication interpolation screen of the present embodiment. (I). First, the description will be made focusing on the configuration of the passenger rice transplanter 1 of the present embodiment. As shown in Fig. 1 and Fig. 2, the six-lamp type passenger insert (4) 1 as an example of the seedling transplanting vehicle is composed of the following parts: front and rear 35 (the traveling devices '3, 4' are capable of traveling in the field. Supporting the traveling vehicle body 2; the shifting device 5, which shifts the driving power to the front and rear wheels 3, 4; the engine 6, which is an active portion that supplies power to each device including the shifting device 5; 14 seedling transplanting device 7' It can be used to lift and lower the building in the machine: the rear part and use the branching power from the gearbox f 5 to plant the field of Putian 'linking mechanism 8', which connects the seedling transplanting device 7 to the rear of the body; It moves the seedling transplanting device 7 up and down; and the operating portion: /, is equipped with a running operation #: () for operating the traveling speed by switching the variable arresting device, an operating tool for operating various devices, and a steering handle ^, etc. 5 is configured as a 卞 structure: with a static 12 201234955 liquid-type continuously variable transmission that is simply referred to as 跪, by interlocking with the operation of the travel lever i0 (four), after the first knife change and the electric motor operation based on the stepless speed changeThe angle adjustment of the trunnion (not shown) is used to transmit the engine power variable obtained by the transmission of the belt 5a to the front and rear wheels 3, 4, so that it can be used for the middle and low speed regions respectively. The shift from the stop speed to the highest speed is achieved by the upshift of the four-zone road. 6 The motor is configured to be able to electrically retract the travel mode, the low-burn consumption rate travel mode, the standard travel mode, and the high-speed travel by the throttle opening degree. In addition, the engine 6 drives the auxiliary machine such as the liquid water spring for the hydraulic equipment drive. The seedling planting device 7 drives the lift by hydraulic power and passes the horizontal (rolUng). The angle adjustment is supported by the level, and the seedling transplanting device 7 is configured to be able to perform the planting operation by the branching power from the speed change device 5. The 'planting seedling transplanting device 7 is in this example: row planting The structure is composed of the following parts: a seedling loading box ": ', a blanket and a planting row on which soil is placed on the seedling placement surface divided into several rows of planting rows. A considerable number of planting devices 15 implant seedlings on the seedling phase of the seedlings into the field; and a floating body 16 in the field for land preparation. / month, using Figure 3 for the present embodiment A description will be given of a control system for controlling each device according to the conditions on the passenger's rice transplanter. Fig. 3 is a block diagram showing the control system of the passenger rice transplanter 1 of the present embodiment. ' 13 201234955

/10, 旯 1 1 ,, J ay (3) Dreams w 9 nn蚪M, take Feng can pass the control? =: 5, engine throttle 2 〇, seedling planting (omitted figure -) and: planting device 7 The lifting and lowering includes the liquid house lifting control valve (not shown) and the lifting and lowering device 30 of the lifting hydraulic cylinder 9 are operated and controlled. In addition, as shown in Fig. 3, the wheel-in side of the control device i2 is connected with: 仃驮Operation lever 1〇, the travel operation lever 1〇 is used for the shifting operation of the transmission device 5, and the retreat position detecting unit 11) is in the retreat stop position and the travel lever when the retracted position detecting unit (1) is in the retracted stop position u is detected in the case where the retraction area is in the backward direction; the speed detecting unit m detecting unit 12 detects the running speed of the traveling vehicle body 2; and the rising detecting unit 2 is 13. 'The rise detecting member 13'. The case where the seedling insertion device 7 exceeds the pre-twisting degree is detected; the auxiliary shift lever position detecting portion (5), the lever shift position detecting portion 150 detects the lever position of the auxiliary shift operating lever 140: the above-mentioned pair The shift operating lever 140 switches the operation mode of the passenger rice transplanter i into one of a work mode (for example, a planting mode) and a movement mode (for example, a road running mode); and the accelerator operation detecting unit 160, the oil m is used as a detecting unit (10) The accelerator operation of the accelerator pedal u that operates the engine speed is detected; the mode selection unit 17G selects any of the standard mode, the low fuel consumption mode, the high output mode, and the reverse mode that are the power characteristics of the engine 6 - The mode of the lift and the lifting rod (10) are used to switch between the start and fall of the seedling insertion plant 7 and the movement of the stop, the rise and the automatic. 14 of the operating lever 1 201220125555 =/potentiometer for detecting the amount of movement of the backward movement (not shown) The detection result of the second retracted position detecting unit 110 is rounded up to the control The device control device 200 is configured to respectively capture only the farm 5 (HST) and the engine throttle 2 in accordance with the electric (four) value of the control and the detection result of the reverse position detecting unit 11G. The control device m is configured to output a pass signal to the shifting device 5, and to drive the engine throttle valve 20 to drive up and down, that is, to control the drive opening degree adjusting motor to control the speed of the engine 6 ... Narrative

The domain:::: the row operation lever 10 is configured to be capable of being in the eight-speed forward operation region, the forward stop position (the forward idle speed L and the reverse idle position), and the five-return stop position (backlighting FIG. 5(a)). Positioning of each shift position of the 1 field (refer to (π). Next, the main reference is based on the rotation control of the engine: the operation of the control system of the machine 1 of the structure is explained; "With the twister == The flow (4) of the (4) and the line (4) of the multiplier of the multiplier in the first embodiment of the present invention is explained. The Uchida 扛# of the embodiment i of the invention (2) (a) is the control of the operation position and the control of the lever. In the system, the line _ =:::= turns: the outline view, (1) is a schematic diagram showing the relationship between the operation position of the operation lever and the machine speed of the machine 5 201234955. (I 1). Here, In the case of the seedling transplanting operation (the seedling transplanting operation is simply referred to as the planting operation) of the passenger rice transplanter 1 of the present embodiment, the following control will be described with reference to FIG. 4: the above control is And set the highest speed in the retreating area in the retreating operation lever 10 The engine speed in the speed region (here, the position of the fifth slot in the retreating rest area) is higher than the highest speed position (here, the fourth position of the retreating travel area) The position of the gear is higher in the control of the engine speed, and the above control causes the engine speed when the line-stop operation #1() is in the reverse stop position to be in the retreating operation area. The control of the engine speed at the predetermined position (here, the position of the first gear and the second gear of the reverse running in Fig. 5(a)). Here, the engine speed control described above is referred to as "first control". In the present embodiment, the case where the lifter lever 180 has been cut and moved by the operator and the shifting lever 14 has been switched to the "planting mode" will be described. Fig. 4 does not, if the operator makes the travel lever 1 〇 moves from the forward stop position to the reverse stop position, and receives the control device 20 来自 from the reverse position detecting unit 11 (see step S101 of FIG. 4), and the root j comes from the reticle shift lever position detection. "5. The signal is measured to determine whether the motion mode of the eye is the mode of the "planting mode" (refer to step S10?, . . . of FIG. 4). Here, the auxiliary shift lever 14 has been switched to the planting switch. "Therefore, proceed to step S1 0 3. 16 201234955 On the other hand, if the current mode of operation is "planting mode", the mode other than 'terminates' the implementation of the "the spear control, and the corresponding to each action mode "Normal control" (夂, (> know step si 18 of Fig. 4). Here, ''normal control' is a general term for the control other than m, the first batch, and the second Control" (spring BS _ , 〇 ^ ", and the control characteristics of the engine singer indicated by the one-dot chain line in Fig. 5 (a)). Thus, the configuration is such that when the travel lever is in the reverse travel stop position or the reverse travel position, and the sub-speed shift lever position detecting unit 150 detects the sub-shift operation lever 14 In the road travel mode, the "second control" described later in the normal control is executed instead of the above-described "first control, whereby unnecessary increase in the engine speed can be prevented, and the fuel consumption can be reduced, and it can be prevented. Excessive load is applied to the component parts, so the durability of the device is improved. In addition, as shown in Fig. 5 (a), in addition to the fifth floor of the reverse travel, the "second control," the engine speed is higher than the " The engine speed of the "control" (refer to the control characteristic of the engine speed of the cross-section of FIG. 5(a)) is low, so that it is possible to prevent the reverse retreat speed from rapidly increasing, and the operator can concentrate on (4) the operation of the vehicle body 2, Therefore, the operability is improved. Next, in step S1 03, first, the control device 2 determines whether or not the seedling transplanting device 7 is in accordance with the detection signal from the ascending check: the adjacent member 130. If it has not been exceeded, the process proceeds to step S104. On the other hand, if the rank seedling implant i 7 exceeds the predetermined height, the control characteristic of the engine speed is shifted to the "second control," (Fig. "a")

S is a single point (four) control characteristic of the engine speed), and the step S119) of the lifting and lowering operation of the seedling transplanting device 7 by the lifting device 30 is not performed. Thus, when the rise detecting means 130 detects that the seedling transplanting device 7 has risen above the predetermined height, it is not necessary to perform the lowering operation based on the lifting device 30, and control the engine speed to switch from "first control" to the first Therefore, the unnecessary increase of the engine speed can be prevented, the fuel consumption can be reduced, and an excessive load can be prevented from being applied to the constituent members, so that the durability of the device can be improved. During the ascent of the device 7, it is expected that the aligning engine 6 is loaded with the yoke, γ & μ a 1 曰μ 戟 攸 and the engine speed is set to be high-speed rotation control. Therefore, after the rise to the predetermined height, the lifting of the wheat is stopped. 3. The load applied to the engine will be correspondingly reduced. This: If the original = continue to rape the "first-control", the speed of the reverse movement of the vehicle body 2 will be abrupt. Therefore, by switching 爿"The second control is sufficient to prevent the retreat speed of the car body 2 from being sharply increased, so that the operator can concentrate on the traveling car to improve. The song soap 2 is made 'to make the operability next, in step S1 〇 4, in order to make the starting value (about 26 〇 f in Fig. 5 (a)) " speed rises to the predetermined ... Pm), The opening of the engine throttle 20 - which is the pre-twist angle. Thereby, the lifting device 7 rises. , set 30 to start seedling transplanting = this 'designed to increase the engine speed when the travel lever ι is in the reverse stop position' and exceed the predetermined position in the retreating area (here 1 and 2) Gear)::: 18 201234955 The control structure of the engine speed can raise the link mechanism 8 and the Putian planting device 7 at two speeds in the retreat stop position, so that the bottom of the seedling transplanting device 7 can be raised in a short time. By going to a height that does not come into contact with the ground or the field, and quickly switching to the reverse driving, the work efficiency is improved. In addition, since the engine speed is set to be low in at least the first gear that starts traveling backward, it is possible to prevent the traveling vehicle body 2 from suddenly starting, so that the operator can concentrate on the operation of the traveling vehicle body 2, thereby making the operability Improved. Then, if the operator moves the travel operation lever 1〇 from the reverse stop position (reverse idle position) to the reverse travel region, the reverse position detecting unit 110 detects the situation and moves the travel lever 1〇 to the reverse travel region. This is the case notification control device 200 (refer to step S105 of Fig. 4). The control device 200 that has received the above notification performs the following control until the travel operation lever 10 moves to the fifth floor (step siG6 of FIG. 4): that is, the travel operation lever 1 移动 moves from the stop position to the first position When the engine internode 20 history is determined as a predetermined opening degree to temporarily reduce the engine speed, in Fig. 5 (a), from about 2 pm to about rpm), in the line to operate the lever 1 〇 While the first r ^ second is moved to the fourth gear, the engine p valve 20 is controlled to a predetermined opening degree of the motor to increase the engine speed (see step S1 0 7 of Fig. 4). On the other hand, the lever 10 moves f, the flute ± the other side, because the detected value of the i M potential leaf in the running operation passes the travel lever over the fourth step ςιη^ image notification control device 200 (refer to FIG. 4). 0 6 ), therefore, by controlling the engine to be turned into the engine throttle valve 20, the engine is lowered to a lower level than the fourth gear (refer to S11 7 and FIG. 5 of FIG. 4).

S 19 201234955 (1)), and proceeds to step S1. In step S107, the control device 2 controls the engine speed based on the predetermined control characteristic (refer to the solid line in FIG. 5(a)) with the detected value from the potentiometer as described above. The amount of movement of the rod 10 is detected (see step S107 of Fig. 4). Further, as shown in Fig. 5 (a), during the reverse running in the planting operation, the control characteristics of the engine speed outside the indicator (refer to the solid line of Fig. 5 (β)) & The engine rotation speed when the seedling planting device 7 exceeds the predetermined height (refer to steps W叼 and 〇9 in Fig. 4) (see the alternate long and short dash line in Fig. 5(a)) and is set to be used for insertion. For example, the engine speed of the reverse travel on the road other than the planting operation (refer to the early dotted line of FIG. 5 ( &)) is high. Further, the control of the engine speed indicated by the one-dot chain line in Fig. 5 (a) is referred to as "second control". The engine is set to a higher engine speed than the first and second gears in accordance with the control characteristic indicated by the solid line of the ® 5 (a) at the retreat stop position at the time of insertion. Moreover, it has a characteristic control characteristic in that although the engine rotation speed is substantially lowered (four) the normal rotation speed when moving from the stop position to the first speed, from the first gear to the fourth (fourth), corresponding to the break operation #1G The position causes the engine speed to increase by a curve steeper than usual. 'When moving from the fourth slot to the fifth gear, the engine speed drops below the second '' (5), the change in the vehicle speed is expressed as 0 and Fig. 5 (a) is a passenger broadcaster for explaining the embodiment! A schematic diagram of the control characteristics of the engine speed in the planting operation, Fig. 20 201234955 is a schematic view showing the vehicle speed corresponding to Fig. 5(a). Further, the solid line indicates the sensitivity based on the "first control, '(4) engine speed and vehicle speed, and the one-dot chain line indicates the time before the "second control, engine speed and vehicle speed" based on the one-dot chain line. The engine speed and vehicle speed are indicated by dashed lines. Thereby, it is not necessary to stand by at the backward traveling stop position, and it is possible to perform the reverse running while the seedling transplanting device 7 is rapidly ascended. In addition, when the walking lever 1 is operated to the front side (the fifth gear in Fig. 5(a)) is the front side (the fourth gear in Fig. 5(a)) At the time of 'the engine throttle 20 (4) is a predetermined opening for raising the engine speed (about 3100 rpm in Fig. 5 (a)) when the travel lever 1 〇 is operated to the rear of the reverse travel direction The engine throttle valve 20 is controlled to a predetermined opening degree for lowering the engine speed (about 290 rpm in FIG. 5 (a: a:), and can be configured as such a structure. When moving to the rear side and moving backwards, the traveling speed is prevented from being excessively increased, so that the operator can easily perform the retreating operation on the traveling vehicle body 2, thereby improving the work efficiency, and in the retreating traveling area of the operating lever 1 〇 In the middle, the position where the engine cranking rises to the peak (in the fourth embodiment in this embodiment) is set, whereby the rising speed of the link mechanism and the seedling inserting device 7 is increased, thereby preventing the stalking planting device 7 from moving backward. In the process, I contacted Tian Hao and so on. Therefore, it is possible to prevent the seedling transplanting device 7 from being broken, thereby realizing the durability, and returning to the description of each step of Fig. 4 again. That is, in step S108, the same judgment as the above-described step S13 is performed 21 201234955 When the seedling transplanting device 7 does not exceed the predetermined height, it is judged whether or not the reverse traveling speed of the hard body 2 has reached the set speed (refer to step si〇9 of Fig. 4), and if not, the process proceeds to step S110. The change in the movement denier of the travel operation lever 1 is judged based on the detected value of the potentiometer (refer to step S1 of FIG. 4), and when there is no change, the engine rotation speed is maintained (refer to step Slu of FIG. 4), and in the step magic In the 丨2, the lamp is processed in the same manner as the above step S1 03, and then returns to the step S1 丨〇. On the other hand, if it is determined in the step S110 that the amount of movement has changed, the process returns to the step (10) and the above-mentioned action is repeated. When the vehicle moves in the direction toward the reverse stop position, the engine speed is sequentially decreased in accordance with the position thereof (step S107 of Fig. 4), α^b' when not traveling backward in step S1〇5 When the field detects that the driving operation cup is 1 ,, it is judged whether or not the vehicle is detected at the backward stop position, 1〇 (refer to step sil3 of FIG. 4), if not detected, then: The engine rotation control ("first control") ends. In addition, if it detects 'then, then returns to step S1G3 and repeats the above action. : Outside' If it is determined in the step coffee, the reverse line of the traveling body 2 is reached again. The degree of catching 'then then even if the driving operation 捍10 is step-by-step operation' is controlled to reach the engine speed at which the set speed is maintained (refer to step S114 of FIG. 4), and the step sl〇3 is performed in step S115. The same processing. = The above-mentioned 5 疋 speed is configured to be freely selectable by the operator switching between switching (not shown). In the control structure of the 2012 201255 control structure in which the traveling speed of the vehicle body 2 is maintained at the set speed, the operator moves the travel operation lever 1〇, and determines that the moving direction is the direction toward the reverse stop position (refer to step S116 of FIG. 4). ), then return to step 通过 by return and repeat the above process. Further, if it is determined in step S116 that the moving direction is not the direction toward the reverse stop position, the process returns to the above-described processing of step S114. As a result, the operator can set the speed by switching the switch, and can maintain the set speed. Therefore, the operator can retreat at a speed faster than the speed expected by the operator, thereby allowing the operator to concentrate. The operation of the vehicle body 2 is carried out. In addition, 'the engine speed is increased faster than the conventional device until the set speed is reached'. Therefore, the speed of the rise of the link mechanism and the seedling transplanting device 7 is increased, so that the seedling transplanting device 7 can be prevented from traveling backwards. The contact can prevent the seedling transplanting device 7 from being damaged, and therefore, the durability can be improved. And in the case where the number of planting transplanters for ten rows of planting transplanters or ten rows of planting transplants is increased and the weight of the seedling planting device 7 is increased, the load of the engine 6 required for the rise of the planting device 7 is increased, so , that is, set the opening degree of the engine throttle corresponding to the engine speed shown in Fig. 5(a). Since the torque is required, the corresponding vehicle speed rises as shown in Fig. 5(b). The t-fighting rate of each of your + 曰 doubles is low, and sometimes the speed of the car will be about the same as the previous speed. At this time, since the speed of the retreating material is at the same level, the &p; 丄 ', 入 , , , , 茜 后 在 在 在 在 在 在 在 在 在 在 在 在 在

S Ding retreats and drives the seedling transplanting device 7 to rise rapidly with 23 201234955. From this point of view, the work efficiency is improved. (11-2) In the above description, the case where the operator operates the travel operation lever 10 to adjust the vehicle speed of the traveling vehicle body 2 has been described. Here, the operator is further stepped on the accelerator pedal 后3 while traveling backward. The action in the case will be explained. In the case of the reverse running, when the control device 2 performs the above-described "first control", if the operator steps on the accelerator pedal 13, the control device 2g that has received the detection signal from the accelerator operation detecting portion 16Q will be compared. The first control "prioritizes the control of increasing the engine speed. That is, the control device 200 issues a command to increase the number of revolutions of the engine 5 to the engine throttle valve 2. Therefore, it is configured such that the operator can step on the accelerator pedal 13 to start the rotational speed of the fourth gear of the peak speed (for example, FIG. 5u): the fourth speed is higher (not shown) In the case where it is necessary to increase the engine speed in the retreat homing ^ Only by stepping on the accelerator pedal i: to ensure the necessary engine speed, the operability and the chapter efficiency are improved. Staying (11-3). In the above description, the motion is taken as the center, and the reverse travel of the second is used for the high torque, (four) m or from the field with reference to Fig. 5, Fig. 6, and Fig. 7. The control of the engine speed at the time is explained. The second = first cam member 310 and the second cam member 32 are switched. In the schematic cross-sectional view of the first and convex double cam storage boxes 33G, the upper 310 and the second cam members 32 are used for the stop position of the travel operating lever 24 201234955 and the positioning map at the shift positions of the forward and reverse retracted regions. 7(a) and 7(b) are schematic plan views showing the outer shapes of the first cam member 31a and the second cam member 320, respectively. As shown in Fig. 6, the broken bearings are disposed inside the storage boxes 330a and 330b. The members 337a and 337b are supported as rotatably rotatable members 337 which are fastened face to face in order to form a predetermined space inside. The drive plate 336 is always fixed to the rotary shaft member 337 by the lock key 33'. Further, the operation of the forward operation, the stop operation, and the reverse operation of the travel operation lever 1〇 can be transmitted to the drive plate 336 via the joint member 10a. Further, the first cam member 310 and the second cam member 320 disposed on the left side in the drawing of the drive plate 336 are substantially fan-shaped as shown in Figs. 7(a) and 7(b), and are equivalent to the fan shaft of the fan. The rotating shaft member 33 is rotatably inserted into the through holes 312 and 322 provided at the position. Further, claw recesses 311 and 321 are formed in the through holes 312 and 322, and the claw recesses 311 and 321 are inserted into the claw portions 334a of the switching lock member 334 which will be described later. Here, the first cam member 31A and the second cam member 320 will be described with reference to Figs. 7u) and 7(b). The first cam member is a cam for realizing the operation position of the retreating five-span and advancing eight-points described with reference to FIG. 5 in the above embodiment, at a position corresponding to the stop position at the arc-shaped end portion of the sector, and the retreating travel region. The position corresponding to the five gear positions of the middle floor, the third floor, the fourth floor, and the fifth gear, and the position corresponding to the eight gear positions in the front of the Wei domain are respectively formed with arc-shaped concave portions 313 at equal intervals. 201234955 On the other hand, the second cam member 320 is different from the first cam member 310, although the position corresponding to the disc-shaped end position of the arc-shaped end portion of the sector and the position of the reverse travel area are 1.5. The position corresponding to the four gear positions of the gear, 3蜱^d棺, 4th gear, and 5th gear, and the position corresponding to the eight gear positions of the forward traveling region field*円 are respectively formed with arcuate recesses 323' but not In the case of the reverse travel area, the position of the stop position near the stop position is 1.5 in the middle of the 1st and 2nd gears. Further, the position is the third, fourth, and fifth gears after the picking operation, and the transmission arm is provided at the ends of the first cam member 31〇 and the 坌-U and the first cam member 320. 314, 324, the above values are discussed. The above-mentioned handing arms 314, 324 are used to transfer the forward/backward child's life of the driving fine lever 1 由 to the potentiometer (not shown). 'In order to follow the instructions from the control assembly 9 η η && /v ^ , , t Li Yi 1 2〇0 Let the shifting device 5 (HST) perform the selection of the driving lever 1 铞; the forward-reverse switching and the continuously variable shifting of the position linkage. Here, returning to FIG. 6 again, the rotation is performed. The outer peripheral portion of the shaft member 337 is formed with a groove 337c' in the axial direction and is provided with a cylindrical cover 339 having an outer diameter larger than the outer diameter of the rotary shaft member 337 for covering the groove 337 from the outer circumference. - a space-like switching lock member is disposed in a space surrounded by the cylindrical cover 339, the switching jaw member 334 is formed with a convex claw portion at the front end portion, and the switching lock member 334 is configured to be hung by the leaf spring member The force is applied to move in the axial direction of the rotating shaft member 3 3 7. On the other hand, the double cam storage box 330 is provided with the switching shaft 332, 26 201234955, and the switching shaft 332 is slid in the direction of the arrow A to be stored in the box. 33-a and 33〇b-partial branch 'and the switching shaft is arranged in parallel with the rotating shaft: member 337' and the ends of the switching shaft 332 protrude to the outside of the storage box 330a. Also, in the switching shaft 3 committed - one end, installed with homework The switching of the shape that is easy to grasp by the hand is at the other end (four) of the switching shaft 332, and the interlocking plate interlocks the action of the switching lock member 334 with the switching lever 331. When the operation lever 10 is in the stop position, the claw portion 3343 of the switching lock member 334 is inserted into the claw recess portion 321 of the first cam member 320 or the claw recess portion 3U of the first cam member 31〇 in conjunction with the operation of the switching lever 331. Thereby, any one of the first cam member 31A and the second cam member is temporarily fixedly locked to the rotary shaft member 33 and is formed in the plurality of the first cam member 31 and the second cam member 320, respectively. The arc-shaped recessed portion 313 and the three points are positioned corresponding to the row-operating lever 2, and the lower ends of the contact spring members 338a and 3 are rotatably provided with rollers 338a1 and 338, and the above-mentioned contact bombs, cattle 338a 338b The upper end portion is fixed by a spring fixing pin 34 provided on the outer side of the double cam housing case 330. The roller 338 & is capable of rotating the cam member 31 〇 and the second cam member 32 () around the axis of the rotary shaft member 337, respectively, and is biased toward the arcuate recesses 313, 323 by the contact spring members 338a, 338b. force. The arrangement of the second and the 'the first wheel member 310 and the second cam member 32' is not limited to Fig. 6, and the first cam member 310 may be disposed closer to the side of the drive plate 336 than the second cam member 320.

S 27 201234955 By the above structure, for example, in the case where the pedal is raised, it is treated as purple: the body 2 is brought back by the retreat, and the driving operation lever 10 is placed at a distance of less than l, θ, m ^ : moxibustion In the state of the stop position, the switch = two slides, whereby the claws of the switching lock member 334 move in the same direction and are engaged with the claw recesses 321 of the second cam member 320, thereby the second cam portion = The shaft is moved. Thereby, switching from the first wheel member 310 to the second cam member 32A can be performed simply and reliably. Then, if the operator moves the driving lever to the position where the touch feeling is first felt in the reverse walking area, the transmission & coffee and the second cam member 32 rotates correspondingly to the operation.

(Refer to Fig. 6), and is formed in an arcuate concave portion 323 formed at a position of the first axis two convex X wheel P member 320 01.5 as shown in Fig. 7") so that the roller cookie contacts the arc The damper 323 is capable of locating the damper lever 1 状态 in a state of being swung in the forward and backward directions. At this time, the control device 200 issues an opening command based on the engine throttle 2 ,, which is used to make the engine 6 equivalent The output of the engine speed (about 2300 rpm in Fig. 5(a)) corresponding to the position between the reverse i-range and the reverse 2-slot shown in Fig. 5(a). And, since the pedal is a steep bevel, Therefore, the actual engine speed does not rise to "OOrpni but runs at a low speed, but high torque can be obtained. On the other hand, the shifting device 5 (HST) receives an instruction from the control device 2〇〇, and adjusts the engine power by an angle adjustment of the trunnion corresponding to the 1.5-speed operation of the travel lever 10 to the reverse travel. The shift is transmitted to the front and rear wheels 3, 4, 28 201234955 Thereby, a low speed and high torque output can be obtained at the start of the reverse running. Therefore, when high torque is required in the reverse running, it is possible to make the green running higher than the normal running torque at the start of the reverse running at the start of the reverse running speed (4), and therefore, when tilting the ground or the unevenness When a plurality of places or the like are traveling backward, it is possible to prevent the running from being stopped due to insufficient torque, and the work efficiency is improved. Further, an example of the first rod positioning portion according to the present invention corresponds to the second rod positioning portion including the first cam member, the contact spring member 338a, the roller 338ai, and the like of the present embodiment, and corresponds to the present embodiment. The second cam member, the contact elastic member, and the roller 3 are difficult to structure. Further, an example of the switching unit of the present invention corresponds to a configuration including the switching function 33 of the present embodiment, the switching shaft 332, the interlocking board chat, the switching lock unit, and the leaf spring member 335. ("-〇···························································· Timing, etc. (Electrical): (4) Selecting the operation unit i7G switching standard mode, low fuel consumption mode, high output shuttle + " 乂 乂 pole, reverse mode, etc. Here, FIG. 8 is a characteristic line diagram showing the low fuel consumption mode L mode 中 in the system of the embodiment of the present invention. The control of the passenger rice transplanter, the standard mode, and the high output wide range enable multiple engines. The engine control duration in which the control mode operates is used for the control of each device in the AA h system. 29 201234955 No, the engine controller 6 here is in the forward running system, as the start-up Dynamic characteristics, for the vehicle from the stop position to the highest speed position of the passenger car in the U from the set low fuel consumption mode L 曰 No, 疋 speed ' early wedge M, high wheel mode Η The low fuel consumption mode L is from the low rotational speed; the dynamic characteristics used in the low-consumption break, the rod is often rotated at the idle speed Μ 0, and the power is used in the ', , Μ疋 slave output mode ί Characteristics, high _^Η(), the dynamic characteristics used in the mud line wrinkle #. And, in the back 仃 driving, use the picture of Figure 5) "疋^ the above-mentioned "the first control,, (refer to D The control mode used in the reverse running. The control device 200 is configured to be able to select any one of the above four rotation modes::: 17 indicates that the indication i for the driving operation lever 1G is as shown in FIG. ... anal fistula to know position " η 0,, ,1 捍 position after the start "2nd gear": Out mode Η, in the lever position "3 domain application is still more than d ^ above the medium speed zone, over mode The rotation mode selected by the operation member 17 is selected. The consumption mode selects the low fuel consumption by the mode selection operation member 170.

In the case of the nucleus type L, the characteristic map of the h〇'h2 and the L3'L8 connected to FIG. 8 is supplied to the variable reading R (10) speed device 5 with respect to the above-mentioned dynamics, Μ: cup a — ^ 』 know the power of the machine. Forward stop position ". Two-way action, when the travel lever 10 is operated from the stop gear speed increase operation, the shifting device 5 is at a stop speed from the rapid rotation H〇 based on the high output mode 〇 to the lever position of the just-speed region Maintain high output mode until “2nd gear” 过渡 Through the speed increasing operation in the medium speed zone, transition to the mode selection operating part; 7低30 201234955 Determined low fuel consumption mode L. In addition, when using the mode to select the operating part When the back = type is selected, the control mode including the above-mentioned "the_th control" (refer to FIG. 5) is used in the backward behavior. Further, for example, even if the fuel is selected by the mode selection operation member 170, In the case of the consumption mode L, when the operator sets the travel operation lever to the reverse stop position and the reverse travel area, regardless of the mode selection operation: the selection result of the component 17 is controlled based on the reverse mode to control the engine speed. According to the characteristic range from the low fuel consumption to the running of the mud road, the power is supplied from the starting 贞6 to the respective devices, and the planting is performed. When driving, according to any mode selection of low fuel consumption mode L, standard mode M, high output mode H, (four) machine control corresponding to driving (four) rod 10 (four) ^ additionally 'only when parking and just starting de ～ In the subsequent low-speed area, the application is in the round-up mode. In addition, in the back-off, regardless of the selection result of the operation unit 1 70, the engine speed based on the reverse mode will be prioritized: When the fuel injection is finely controlled by electronic control: 'It is possible to prevent the uncontrollable or insufficient rotation speed of the (4) machine rotation speed due to the abnormality of the electrical installation system related to the electronic control, and it is possible to prevent the traveling vehicle body 5 from being inserted into the planting device 7 Stop 'to improve the efficiency of the work. And 'by choosing the low-sense oblique narration to mention the tweeting consumption type L, when in hard soil

S When the field is in operation, 'the fuel consumption rate can be increased and the exhaust gas can be reduced, and 31 201234955 and 'by selecting the high output mode H, when ordering in the soil that is easy to be muddy,' & Stabilization of the posture and adequate hydraulic pressure of the planting and lowering, etc., to improve work efficiency and improve the precision of the planting of the field. 'In & 'The engine control can be performed according to the soil condition by simple operation based on mode selection. ...b, since the high-output mode 应用 is applied only during the running in the low-speed area immediately after the stop of the vehicle, it is possible to ensure a low speed even if the rotation mode is selected when the soil is easily soiled. Under the premise of stable driving, increase the fuel consumption rate at high speed and reduce exhaust gas. β and 'as shown in Fig. 5(a), in the above embodiment, the engine speed when the running operation #1G is in the reverse stop position is higher than the predetermined position in the reverse running area when the driving operation is performed. (The position of the first and second gears of the moxibustion retreat in Fig. 5(a)) _ The control of the engine speed is described as the first control, but is not limited thereto, for example, as long as /吏Driving the rod! 〇 is at a position higher than the highest speed position (the highest speed position is the position where the travel speed is set to the highest in the reverse travel area, for example, the position of the fifth gear of the line zone) (for example, the reverse travel) The engine speed at the 4th cover / §, stand-up of the £ domain is higher than the control of the engine speed when the travel operation is at 1 〇 at the highest speed position, then the first - so that the travel operation # ig is in the backward The i-position rotational speed at the stop position is lower than the control of the engine rotational speed when the rest operation #10 is in the preset of the reverse travel region), for example, the position of the first groove and the second turn of the reverse travel of FIG. 5(a) . Even this is wrong. 禋, ,,. Compared with the past, the engine 32 in the reverse travel area has a rapid increase in the engine speed. Therefore, the standby time in the wrinkle stop state is not required, and the work machine such as the seedling transplanting device 7 can be further improved. Rise quickly. Further, as shown in FIG. 5(a), in the above-described embodiment, the case where the engine speed is controlled to be higher than the reverse running first gear, the second gear, and the third gear lower than the fifth gear is performed in the reverse branching position. The description is not limited to this: for example, 'the engine speed can be controlled to be at the reverse stop position: FIG. 5 (a) The high speed of the 4th speed indicated by the household is equal to & (for example, the throttle king open). Thereby, the seedling planting device 7 is quickly moved up to 2 at the retreat stop position, so that the opener for cutting the groove in the field at the fertilizer fertilizer outlet of the seedling planting device 7 (not shown) can be prevented. Dirt the earth. And if the opener approaches the surface of the field while driving backwards, it will be filled with 'near soil, blocking the fertilizer out of σ, which will reduce the efficiency of work. Further, it is also possible to perform such control of the engine speed when the row operation lever 1G is at the reverse stop position and the lift lever 180 is switched to the "up" position. Further, although in the above embodiment, the pair is in the reverse stop position. The structure in which the engine speed is controlled to be the same as the speed of 4 turns shown in FIG. 5(a): for example, the full throttle of the throttle valve is described, but it is not limited thereto, and :: if the seedling transplanting device is replaced 7 drops to the floating body 16 (refer to the figure " pick, (10) 纟 then even if the seedlings are inserted into the planting and setting 7 high-speed rise, when the spring retreats faster, and Tian Yu, Ni-Ti can also break into the trench In the device, therefore, the second structure is formed as follows: the floating body 16 is in contact with the ground.

S 'mountain', for example, while maintaining the speed of rotation at the stop position, - 33 201234955, while slowly retreating at a very low speed, the rank seedling transplanting device 7 is slowly raised, and when a certain degree is detected When rising, switch to the same high speed as the 4th speed shown in Figure 5 U) (eight) if the throttle is fully open). Thereby, even if the seedling transplanting device 7 is lowered to the floating body 16 (refer to the extent that the drawing u contacts the ground, it is difficult for the soil to enter the opener, and 'the seedling transplanting device 7 can be quickly raised. The floating body 16 is provided with a potentiometer (not shown) for detecting the inclination of the floating body 16. The control device 2 determines whether or not the floating body 16 has touched the surface of the field based on the inspection angle of the potentiometer. When the seedling planting device 7 is raised to a predetermined height or higher, and the back pull switch of the rising detecting material 13G is pressed, k-like control is performed. Even if the operator manually operates the lifting rod (8) to move the lift position, The engine speed is also maintained at the speed corresponding to the current running (four) gear position (the engine speed indicated by the single point line of „5 (&)). If it is the above embodiment, even if the seedling has been inserted In the state where the planting device 7 is raised, the lifting lever 18〇 is moved by the wrong operation, and the position and the engine speed are eliminated. Therefore, it is possible to suppress the excessive burning and thus reduce the fuel consumption. In the above embodiment, 'mainly controlling the engine speed by the engine throttle' opening degree, for example, you can limit the launching to use the following types of engines (for example, - (4) The electronic control controls the fuel rotation amount β 攸 to switch the engine speed. 34 201234955 Further, in the above embodiment, such a configuration (see FIG. 5( a )) has been described: as a position higher than the highest speed position, The engine rotation when the operation lever ίο is located in the forward travel region at a position higher than the highest speed position (corresponding to the retreat 4th slot of FIG. 5(a)) is higher than the travel control lever 10 The rotational speed of the hair (four) at the highest catch position in the reverse travel area is not limited thereto. For example, the position of the front two slots may be set to be higher than the highest speed position (for example, equivalent to the third backward movement of FIG. 5(a). ) or a position that is three times ahead of the highest speed position (for example, equivalent to the rear = second gear of Fig. 5 (:)) is set to a position higher than the highest speed position. This structure is also sufficient to perform the same as described above. Effect. In the above embodiment, 斟诰,任>, 换,德,... 'example" "" 仃 能够 能够 能够 能够 能够 ^ ^ ^ ^ ^ ^ ^ ^ 丁 丁 丁 丁 能够 能够 能够 能够 能够 能够 能够In the above-described embodiment, the configuration of the elements is performed. (4) (4) 3 (4) All the constituent speeds... But not limited thereto, for example, the speed may not be prepared. One of the 12 〇, the ascending detection unit sub-shift lever position detecting unit 150, the accelerator pedal i, the wide-speed sprint 14°, the 16 〇 and the mode imaginary in the tiller pedal 13 and the throttle operation detecting unit-type selection operation member 170 all or as long as In order to prepare at least the μ, +, and ^ knives, that is, the rod 10, the engine Γ device 5 (HST), and the row operating the lifting device 3. And two: the I engine 6, the (four) position detecting unit 110, the cow clothes 30, and the control device that play & +, and the vehicle can be as described above, and can (4)* + be driven to stop. The rise in standby time. Enough to make the work machine back in order to make it shorter than ever

S 35 201234955 Further, in the above embodiment, the ear of the shifting device 5 is driven by the angle of the shaft (not shown) of the device 200 according to the control command, but is not limited thereto. For example, as shown in FIG. Illustrative;, ',. 构 仃 构 , , , , , , , , , 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机 动机In Fig. 9: =: as the relay wheel member 310, the transfer f 314 , the mouth structure, the first connection line 351 connected to the first-convex, the transfer 314, and the second-part Γ:= transfer arm 324 The second connecting line is in the middle: 53 is set to 50% _ root line ' and is connected to the shifting device from there. At this time, the action of the walking lever 10 is transmitted through the connecting rod mechanism 350: two: 5 The trunnion is used as a detection value of a potentiometer (not shown) for detecting the forward and backward line of the walking lever 10 and a detection result of 1 == U〇, and turns to the control device. The finger that adjusts the opening degree of the engine throttle valve 20 needs to pass through the structure', and can also exert the following effects as described above: 1 "Standby time in the 2nd state" and can increase the working machine in a shorter time than in the past. In the above-mentioned embodiment, the example 10 of the oblique and the beginning and the day, and the back position detection The part 11 is used as the lever 1 () Γ 'but not limited to this'. For example, if the line of momentum is detected, the potentiometer of the action can not only detect the direction of movement of the travel lever 10 but can utilize the drive lever 10 Stop position starts to move month! I enter side and back side) Corresponding positive power output and negative power 36 201234955 Pressure = zone / knife out travel lever 1 〇 Which is located in the reverse travel area and the forward travel area On the one side, it is also possible to have a configuration in which the reverse position detecting unit 11 is not provided. According to the configuration described above, it is possible to achieve the following effects: the standby time in the stop state is not required, and the work machine can be made to rise in a shorter time than in the past in the reverse running. Further, regarding the control of the engine speed for securing the required high torque when the traveling vehicle body 2 ascends along the pedal or when coming out from the field, in the above embodiment, the first cam member 310 and the second cam member are switched. The structure is described. However, it is not limited to this example, and for example, it may be designed as a control structure including a rear wheel rotation sensor 4a (refer to FIG. U) that detects the rotation speed of the rear wheel 4, whereby the row operation lever is 1〇Operation to the first gear of the reverse travel (refer to Fig. 5(a) 'Fig. 7(a)) to control the mounting of the vehicle body 2 along the pedal, the control unit 2χ (M吏 engine speed rises until the rear wheel The rotation sensor detects a predetermined rotation (for example, a rotation speed that can safely rise along the pedal). Thus, even when high torque is required, the engine is not over-excited, thereby enabling the operator to Focus on the operation of the car body 2: change the knife 7 丨, 蚵 戒 秧 秧 秧 秧 秧 秧 秧 秧 插 插 插 插 作业 作业 作业 作业 作业 作业 作业 作业 作业 作业 作业 作业 作业 作业 作业 作业 作业 作业 作业 作业 作业 作业 作业 作业 作业 作业In order to load and unload the material, the operator is required to carry out the work under the seat (4), and it is difficult to perform the shifting operation of the work vehicle. As a result of this problem, as shown in i, the work vehicle is taken as an example.

S 37 201234955 The front side of the rake 1 is provided with a forearm 42 so that it can be switched. In other words, the configuration is such that the operator can manually reverse the forearm 4 2 toward the front side of the hood 40 (see the arrow ρ in Fig. 1). Hereinafter, the structure and operation of the forearm 42 will be described with reference to Fig. 1 (a), Fig. 1 (b) and Fig. 11. Here, Fig. 10 (a) is a view of the passenger rice transplanter 1 of the present embodiment as seen from the front surface side, and Fig. 10 (b) is an enlarged view of the gourd-shaped hole portion 41 shown in Fig. 10 (a) and its surroundings. Fig. π is a block diagram showing a control system of the passenger rice transplanter 1 shown in Fig. 1 (a) and Fig. 1 (b). The same portions as those shown in Fig. 3 are denoted by the same reference numerals and the description thereof will be omitted. As shown in FIG. 10, a gourd-shaped hole portion 41 including a long hole 4U and a circular hole 41b is formed in a lower portion of the hood 4' provided at the front portion of the traveling body 2 and at a substantially central portion in the left-right direction. The long hole is long in the vertical direction and the lower side is thin. The round hole 41b is wider than the long hole in the left-right direction. The base of the front arm 42 is disposed inside the hole portion 41. A restricting plate 43 is provided at the side portion 42a of the base portion of the forearm 42 and inside the hood 4'', and a spring 44 for biasing the front arm 42 side of the restricting plate 43 is provided. Further, the forearm 42 is formed to have substantially the same diameter as the width of the lower end portion of the long hole 41a, and is configured such that the operator does not manually perform the push operation on the forearm 42 in a direction opposite to the biasing direction of the spring 44. The 吏 limiting plate 43 is moved laterally (in the left side of FIG. 1G(b), the cymbal arm 42 cannot move into the circular hole 41b, which is less than 1 degree. And a "rear direction rotation is additionally" in the forearm. 42 is provided with a front potentiometer 45 (refer to FIG. 1) for detecting the rotation operation angle (the rotation angle of the head F direction in the figure 2012 201255), and the potentiometer 45 and the control device i 200 are connected | When the rotational operation angle of 42 reaches a fixed angle (3 〜 to 6 degrees) or more, and the travel lever 1G (4) is the reverse position, the engine 6 is increased in speed by the engine throttle 20. The rear wheel rotation sensor 4a detects that the rear wheel 4 starts to rotate (the rear wheel rotates by 1/4 to W), and then maintains the engine speed when the situation is detected until the travel lever 1 is operated. According to the above structure, when On the pedal or The entrance and exit of the ground, etc., slanting on the ground 4' 4' without operating the travel lever i Q to the second slot or more, can increase the engine speed until the torque that can rotate the rear wheel 4 is ensured, because & It is possible to retreat on the pedal or the inclined ground without increasing the reverse speed, thereby improving the integrity. Further, the base of the forearm 42 is provided on the shackle 4 formed on the hood 4 (). Further, a restricting plate 43 biased by the elastic cyanine 44 is provided on the side portion of the forearm 42, whereby the forearm 42 is pressed as long as the operator does not subconsciously press the forearm 42 in a direction opposite to the biasing direction of the spring 44. It is not possible to rotate the predetermined angle (3 〜 to 6 〇 )) wm > degree) or more. With the above configuration, it is possible to prevent the forearm when the traveling vehicle body 2 is vibrated by the concave and convex portions of the field 42 arbitrarily rotates the predetermined angle (3 〜 degrees ~ 6 〇 no J or more, therefore, it can prevent the ranks of the ranks caused by the engine speed in the planting ^ 丫 丫 丫 丫 丫 丫 丫 丫 丫 丫 丫Chaos and driving speed. Lu, 丨^ The sharp increase of n degree makes the planting accuracy and operability of the seedlings stable.

S 39 201234955 Further, in order to allow the operator to perform the retracting operation in a retracting operation, the engine speed is increased only when the retreat lever 1G is retracted and the forearm 42 is rotated by a predetermined angle or more. When the operator comes down from the body and stands in front of the body to move the body on the inclined ground, even if the operation position of the rod 1G is in the forward 2 or 3 position, if the forearm 42 is pushed down, the engine speed will be made. The rise is continued until the rear wheel rotation sensor 4a detects the advancement of the body, so that the operator can raise the engine speed without operating the line break operation #1Q located on the machine body, so that the work efficiency is improved. However, when the operating position of the travel lever 1 () becomes 4 or more, the engine speed increases. ' While ensuring the torque of the inclined ground (4), the body begins to travel at a high speed, thereby making the operator Since the deceleration operation becomes difficult, it is possible to configure a configuration in which the engine speed is not increased even if the front arm 42 is rotated. Alternatively, if the front potentiometer 45 is inspected to perform a turning operation equal to or greater than the pre-twist angle, the control device sends an apostrophe ' to cut off the oil from the hydraulic valve 46 to the power steering mechanism 47. Delivery: The operation of the steering handle 11 is assisted without hydraulic pressure (refer to Figure U). According to the above configuration, even if there is a sloped ground/neck for moving the body, and the steering handle 11 is arbitrarily operated due to muddy, if the moving (four) (four) structure 47 stops, the steering handle U hardly operates, so the body The straight forward is not hindered, and the maneuverability is improved. Further, it is also possible to adopt a configuration in which the angular velocity sensing 5 48 ' is provided in the forearm 42. If the angular velocity sensor 48 reacts, the engine 6 is forcibly notified, or the engine is forcibly lowered. With the above configuration, when the cymbal M2 is rotated on the pedal or the inclined floor or the like, if the operator slips or excessively approaches the wall or the like due to the foot: the front arm 42 is quickly operated, the body can improve the safety of the work. . In the upper end portion of the forearm 42, the center of the front arm 42 is provided with a center mark and a material 49 as a reference for the straight line. Further, the front f 42 described with reference to FIGS. 1G and 11 and the respective constituent elements (the front electric material 45, the hydraulic valve 46, the power steering mechanism 47, the angular velocity sensor 48, and the like) are not limited to the use of FIG. The configuration example of the multiplier 丨 丨 一种 一种 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 This configuration example can also exhibit the same effects as those described using W 1() and FIG. Further, in the above-described embodiment, the example in which the connected seedling planting device is used as a working machine has been described. However, the present invention is not limited thereto, and may be configured to connect various working devices other than the seedling transplanting device. INDUSTRIAL APPLICABILITY The work vehicle of the present invention has an effect of not requiring a standby time in a running stop state, and can increase the working machine in a shorter time than in the past, so that it can be used as a vehicle body. The rear is connected to a work machine such as a seedling transplanter to perform work for various types of work. λ 41 201234955 Schematic description of the drawing] Fig. 1 is a side view of the passenger rice transplanter. Figure 2 is a plan view of the passenger rice transplanter. Fig. 3 is a block diagram showing a control system of the passenger insertion and removal machine. FIG. 4 is a flow chart for explaining the operation of the control system of the passenger rice transplanter. FIG. 5(a) is a view showing the operation position of the travel operation lever in the control system of the passenger rice transplanter and predetermined by corresponding thereto. A schematic diagram of the relationship between the engine speed determined by the opening degree of the engine throttle, and FIG. 5 (匕) is a schematic diagram showing the relationship between the operating position of the traveling operation lever and the vehicle speed as shown in FIG. 5(a). . Fig. 6 is a schematic cross-sectional view showing a double cam storage box in the control system of the passenger rice transplanter. Fig. 7 (a) is a schematic plan view showing the outer shape of the first cam member in the control system of the passenger rice transplanter, _ ^ ^ ^ port (LbJ is the second cam in the control system of the passenger-less insertion machine) Fig. 8 is a characteristic line diagram showing the low fuel consumption mode L, the standard mode Μ, and the high output mode H in the control system of the passenger rice transplanter. Fig. 9 is a characteristic line diagram showing the low fuel consumption mode L, the standard mode Μ, and the high output mode H in the control system of the passenger rice transplanter. A schematic cross-sectional view showing an example of an I-shape of a double cam housing case in a control system of a passenger rice transplanter. Fig. 10(a) ^ 1n , 'The schematic view of the surface side observation passenger rice transplanter, Fig. 10(b) is a view Fig. 11 is a side view showing the control system of the passenger rice transplanter shown in Fig. 10. 201234.55. Block diagram. [Main component symbol description] Rice transplanter; 2~ traveling car body; 3~ front wheel (driving device); 4~ rear wheel (driving device); 5~ shifting device; 6~ engine; 7~ seedling transplanting device; 8~ linkage mechanism; Hydraulic cylinder; 10~ travel lever; 11 ~ steering handle; 12~ steering ; 1 3 ~ accelerator pedal; 14 ~ seedling loading box; 15 ~ planting device; 16 ~ floating body; 2 0 ~ engine throttle; 30 ~ lifting device; 110 ~ retreat position detecting part; 12 0 ~ speed detecting part 130~up detecting part; 140~ auxiliary shifting lever; 1 50~ auxiliary shift lever position detecting unit; 16 0~throttle operation detecting unit; 170~mode selecting part; 200~control device. 18 0~ lifting rod; 3

Claims (1)

201234955 VII. Scope of application for patents: 1. Kind of work vehicle, characterized by ^10- 嘬俨m broadcast r 〇, lies in the 仃 车 车 (2) via the flail mechanism (8) set seedlings η η device (7), and providing a lifting device ((〇)' for lifting and lowering the above-mentioned cup mechanism (8) on the traveling vehicle body (2, providing an engine (6), and providing a shifting device (5), The shifting device (5) shifts the power of the engine (6) to the power transmission device, and drives the power to the travel device, and sets Mn, D, #作杆 (HO, the driving operation cup (10) is operated The above-described shifting speed (5) is used to shift the traveling speed, and the "running operation # (1 〇) is configured to be able to be operated according to the following: the underrun to the forward traveling area' forward and backward stop area and the reverse travel area, and set Control device (7) 0) 'The control device ((10)) controls the engine speed corresponding to the operating position of the above-described travel operating lever (1〇), ... the control device (2GG) causes the above-described line-sensitive operating lever (1()) to be Insert the backing area into the area The engine speed at the highest speed position on the low speed side is higher than the engine speed when the travel lever ((4) is operated to the highest speed position in the retreat area. 2. For example, the scope of the patent scope) In the work vehicle described above, the work vehicle surface is configured such that when the travel operation lever ((4) is operated to the reverse travel region side in the forward/reverse stop region, the seedling transplanting device (7) rises, and the control device (200) Between the engine speed when the travel operation lever (10) is operated to the reverse travel region side in the above-described reverse forward stop region, the travel lever (1?) is operated to the reverse travel region. 44 The lowest engine speed at the time of 201234955. 3. The above-mentioned control device (200) 申1, ? , 、 、 丨 丨 丨 丨 丨 丨 3. 3. 3. 3. 3. 3. 3. 3. 3. 3. 3. 3. 3. 3. 3. 3. 3. 3. 3. 3. 3. Multiple control 镒 4 微 微 逯 逯 "" mode and set mode selection operation part 'This mode selects the operation part type selection - one control mode, upper, control mode The control device (2〇〇) controls the engine speed in the forward travel region of the travel operating lever (1 〇) according to the control mode of the operation member (1 7 (Π I @ ^ '), and The reverse travel area of the operating lever (10) is controlled to a predetermined engine speed in a manner unrelated to the control mode selected by the mode selection operating member (170). 4. As described in claim 2 or 2 The work vehicle_, and the accelerator pedal (13) for performing the increase/decrease operation of the engine speed in the traveling vehicle body (7), even if the travel operating lever (1〇) is operated to the highest speed position in the retreating area, If the above accelerator pedal ((1) is operated, the above control device (200) also increases the engine speed. 5. The work vehicle according to claim 3, wherein the above-described traveling vehicle body (2) is provided with an accelerator pedal (13) for performing an increase or decrease of the engine speed, even if the operating lever is to be operated (1〇) The operation is to the highest speed position in the reverse travel area, and if the accelerator pedal (13) is operated, the control device (200) also increases the engine speed. 6. The work vehicle according to claim 1 or 2, wherein the ascending detecting unit (1 3 〇) detects that the seedling inserting device (7) has risen to a predetermined height, 45 201234955 when the detecting unit is raised (130) When detecting that the seedling transplanting device (7) has risen to a predetermined height, if the above-described row-stop operation #(lG) is operated to the retracted inter-speed position, the control device (2〇〇) takes the engine speed as The maximum speed in the reverse travel area. 7. The work vehicle according to claim 2, wherein a rise detecting member (1 30) is provided, and the rise detecting member (丨3〇) detects that the seedling transplanting device (7) has risen to a predetermined height. When the travel operating lever (10) is operated to the reverse travel region side in the forward/reverse stop region, the control device (200) causes the rise detecting device (13) to detect that the seedling transplanting device (7) has risen to a predetermined height. The engine speed in this case is lower than the engine speed before the rise detecting member (13〇) detects that the seedling transplanting device (7) has risen to a predetermined height. 8. The work vehicle according to claim 6, wherein an auxiliary shift operating lever (140) is provided, and the auxiliary shift operating lever (14〇) switches the traveling speed of the traveling vehicle body (2) into a planting operation. The traveling speed at the time of the work and the traveling speed at the time of the movement, if the sub-shift operating lever (140) is operated and switched to the running speed at the time of the movement, when the running operation lever (丨〇) is operated to the highest speed position of the reverse movement At this time, the control device (200) uses the engine speed as the maximum number of revolutions in the retreating line region. 9. The work vehicle according to claim 7, wherein an auxiliary shift operating lever (140) is provided, and the auxiliary shift operating lever (14〇) switches the traveling speed of the traveling vehicle body (2) into a planting operation The traveling speed 46 at the time of the work and the traveling speed at the time of the movement are switched to the traveling speed at the time of the movement, and the driving operation lever (1 〇) is operated in the forward/reverse stop region. On the side of the reverse travel area, the control device (200) causes the engine speed when the rise detecting means (7) detects that the seedling transplanting device (7) has risen to a predetermined height, and the engine speed is lower than the rise detection. The component (丨3〇) detects the engine speed before the seedling planting device (7) rises to a predetermined south degree. 10. The work vehicle according to claim 1 or 2, wherein a speed detecting member (1 20 ) for detecting a traveling speed of the traveling vehicle body (2) is provided, if the driving lever is being used. 〇) When the speed detecting means (12A) detects that the traveling speed has reached the predetermined speed in the state of the reverse traveling area, the control means (the above-mentioned control means (1") is operated to the high speed side ( 200) The engine speed is also set to an engine speed that does not cause the traveling speed to exceed the predetermined speed. 47