JP2014155461A - Seedling transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seedling transplanter including a transmission system for solving the problem of the conventional seedling transplanter in which a first seedling cannot be planted depending on the linkage of a clutch in the conventional seedling transplanter when backing the seedling transplanter to a field end and letting down the seedling transplanter at the field end to start planting; and in order to resolve the above issue, a hand work or complicated lever operations is necessary to plant a seedling, thereby deteriorating operating efficiency.SOLUTION: A seedling transplanter comprises: a sub speed change operation member (16) which switches a traveling state of a traveling vehicle body (2); and a shifting and switching member (101) of the sub speed change operation member (16). When the sub speed change operation member (16) is positioned at the planting mode and the shifting and switching member (101) is operated, the sub speed change operation member (16) is shifted from the planting mode position to the neutral mode position.

Description

  The present invention relates to a seedling transplanter for transplanting seedlings in a field.

  The riding rice transplanter described in Prior Art Document 1 is for planting seedlings loaded in a seedling placement tank on a field with a seedling transplanting device, and moves forward and backward by operation of a travel operation lever and by operation of an auxiliary transmission operation lever. It is possible to switch the running state to “road form”, “planting form”, and “neutral form”. When the driving state is "on the road", the power from the engine is distributed to both the driving transmission system and the planting transmission system, and a fixed planting interval is maintained regardless of the level of the driving speed by the driving operation lever. Meanwhile, the seedling planting device will plant seedlings.

JP 2012-228913 A

  When the traveling state is in the “planting mode”, the rotational power to the traveling transmission system and the planting transmission system are interlocked, so the aircraft is moved backward to start planting from the field end and the seedling is placed on the field end. When attempting to start planting by lowering the planting device, it may not be possible to plant seedlings for the first strain depending on the timing of interlocking and the working conditions of the field.

  In order to solve this problem, the planter should plant the seedlings manually or place the sub-shift lever in the “neutral form” position where the driving transmission system and the planting transmission system are not linked. Immediately after planting the minute, it is necessary to perform complicated operations such as operating the sub-shift lever to the “planting mode” position. In this case, in order to operate the sub-shift operation lever from the traveling neutral position to the “planting mode”, the planting operation lever is turned off or the traveling operation lever is placed in the neutral position to temporarily plant the seedling. It is necessary to stop.

  When planting seedlings by hand, there is a problem that the time and labor consumed by the worker increases. In addition, when performing a complicated operation, if the operation is wrong or the timing of the operation is not correct, there is a problem that the planting accuracy of the seedling is lowered.

Therefore, it is a problem to be solved by the present invention to provide a seedling transplanter equipped with a transmission system that solves these problems.

The present invention has taken the following technical means to solve the above problems.
That is, the invention described in claim 1 includes a traveling vehicle body (2) traveling on a farm field and a seedling planting device (4) for planting seedlings on the farm field. A sub-transmission operation member (16) for switching to "planting form" and "neutral form" and a movement switching member (101) for this sub-transmission operation member (16) are provided. When the movement switching member (101) is operated when positioned in the “planting configuration”, the sub-shift operation member (16) moves from the “planting configuration” position to the “neutral configuration” position. It is a transplanter.

  According to a second aspect of the present invention, there is provided a connecting member (102) for connecting the movement switching member (101) and the auxiliary transmission operation member (16), and an urging force for urging the movement switching member (101). Member (103) is provided, and the movement distance of the movement switching member (101) is such a length that the auxiliary transmission operation member (16) is moved from the “planting configuration” position to the “neutral configuration” position. The seedling transplanter according to claim 1.

  According to a third aspect of the present invention, even when the movement switching member (101) is operated when the auxiliary speed change operation member (16) is in the “road form” position, the traveling state of the “road form” is maintained. It is set as the structure hold | maintained, The seedling transplanter of Claim 2 characterized by the above-mentioned.

  The invention according to claim 4 includes a brake member (104) that cuts off transmission between the traveling power of the traveling vehicle body (2) and the planting power of the seedling planting device (4). 104) is provided on the left and right sides with respect to the vehicle body center line along the traveling direction, and the movement switching member (101) is provided on the other left and right sides. It is a seedling transplanting machine described in 1.

  According to a fifth aspect of the present invention, the brake member (104) is configured to rotate in the longitudinal direction of the body, and the movement switching member (101) is configured to rotate in the lateral direction of the body. The seedling transplanter according to claim 4, characterized in that the switching member (101) is arranged within the lateral width of a control part provided on the front side of the traveling vehicle body (2).

  According to the sixth aspect of the present invention, there is provided a tuning mechanism (105) for synchronizing the rotation of the left and right front wheels (10, 10) of the traveling vehicle body (3) and a tuning mechanism for turning on and off the operation of the tuning mechanism (105). An on / off member (106) is provided, and the synchronous on / off member (106) is provided on the left and right sides with respect to the vehicle body center line, and the movement switching member (101) is provided on the other left and right sides. The seedling transplanting machine according to any one of claims 1 to 3, wherein the seedling transplanting machine is characterized.

  The invention according to claim 7 is characterized in that the tuning on / off member (106) is configured to move up and down, and the movement switching member (101) is configured to rotate in the left-right direction of the machine body. The seedling transplanter according to claim 6.

  According to the first aspect of the present invention, the auxiliary transmission operation member (16) and the movement switching member (101) are provided, and when the auxiliary transmission operation member (16) is positioned in the “planting mode”, the movement switching is performed. When the member (101) is operated, the sub-shift operation member (16) moves from the “planting configuration” position to the “neutral configuration” position, so that the movement switching member (101 is not required to operate another operation lever. ) Only, the seedling planting device (4) can be operated without running the aircraft. Thereby, when starting planting of seedlings from the field end, only the seedling planting device (4) is operated in a state where the traveling vehicle body (2) is stopped, and a situation in which the first plant is not planted can be avoided. Therefore, it is not necessary to plant seedlings separately by hand, so that the work efficiency is improved and the seedling planting accuracy is also improved.

  According to the second aspect of the present invention, in addition to the effect of the first aspect of the invention, the movement distance of the movement switching member (101) is such that the auxiliary transmission operating member (16) is moved from the "planting form" position to the "neutral" position. Since the auxiliary transmission member (16) can be prevented from moving to the “on-road configuration” against the operator's intention, the sudden start that is not intended by the operator is prevented. Operability is improved.

  Further, by providing the biasing member (103) for biasing the movement switching member (101), when the operation of the movement switching member (101) is stopped, the movement switching member (101) returns to the original position, Since the auxiliary transmission operation member (16) automatically returns to the “planting mode” position, the planting operation can be continued as it is, and the work efficiency is improved.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, when the auxiliary transmission operation member (16) is in the “road form” position, the movement switching member (101) is operated. However, since the “road configuration” traveling state is maintained, the auxiliary transmission operation member (16) moves to the neutral position even if the movement switching member (101) is accidentally operated during traveling on the road. As a result, the airframe is prevented from stopping and the operability is improved.

  According to the invention of claim 4, in addition to the effect of the invention of any one of claims 1 to 3, the driving force of the traveling vehicle body (2) and the planting of the seedling planting device (4) By providing the brake member (104) that cuts off the transmission with the attached driving force, traveling and seedling planting can be interrupted at the same time when sudden stop is necessary, so that seedling double planting is prevented and seedling consumption The amount can be reduced.

  Further, the brake member (104) is provided on the left and right sides with respect to the vehicle body center line along the traveling direction, and the movement switching member (101) is provided on the left and right sides, thereby operating the brake member (104). In this case, it is possible to prevent the movement switching member (101) from being erroneously operated, and the operability is improved.

  According to the fifth aspect of the invention, in addition to the effect of the fourth aspect of the invention, in the direction of operation by making the rotation operation direction of the brake member (104) and the movement switching member (101) different. Since it becomes easy to determine whether or not a correct operation is being performed, an erroneous operation can be prevented and operability is improved.

  Further, by arranging the movement switching member (101) within the left and right width of the control unit, it is possible to prevent an erroneous operation of the movement switching member (101) by the feet of the worker getting on and off from the front side of the aircraft, and to get on and off the traveling vehicle body (2). Safety is improved.

  According to the invention described in claim 6, in addition to the effect of the invention described in any one of claims 1 to 5, the tuning mechanism (105) for synchronizing the rotation of the left and right front wheels (10, 10), By providing a tuning on / off member (106) for turning on and off the operation of the tuning mechanism (105), even if the traveling vehicle body (2) stops during turning in a swamp, the tuning on / off member (106 ) To synchronize the rotation of the left and right front wheels (10, 10) and obtain a strong driving force necessary for forward movement, preventing the vehicle from becoming inoperable during turning and improving work efficiency. To do.

  In addition, by providing the tuning on / off member (106) on the left and right sides with respect to the vehicle body center line, and providing the movement switching member (101) on the left and right sides, it is difficult for the operator to perform an erroneous operation. Operability and work efficiency are improved.

  According to the seventh aspect of the invention, in addition to the effect of the sixth aspect of the invention, the operation direction is made different by operating the tuning on / off member (106) and the movement switching member (101) differently. This makes it easy to determine whether or not a correct operation is being performed, so that an erroneous operation can be prevented and operability is improved.

It is a side view of the seedling transplanter concerning a first embodiment of the present invention. It is a top view of the seedling transplanting machine of FIG. It is a front view of the control part of the seedling transplanter of FIG. It is explanatory drawing of the auxiliary transmission operation member concerning 1st embodiment of this invention. It is explanatory drawing of the auxiliary transmission operation member concerning 2nd embodiment of this invention. It is a drive system figure of the seedling transplanting machine of FIG. It is a drive system figure at the time of "road configuration" of the seedling transplanter of FIG. It is a drive system figure at the time of "planting form" of the seedling transplanter of FIG. It is a drive system figure at the time of the "neutral form" of the seedling transplanter of FIG. It is sectional drawing from the back direction of the fertilizer application concerning 3rd embodiment. It is explanatory drawing of the fertilizer bag cutting piece with which the fertilizer application of FIG. 10 is equipped. It is a block diagram of the starter part of the engine of the seedling transplanter concerning 4th embodiment.

  Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings. The forward and backward directions and the left and right directions are based on the forward direction of the seedling transplanter.

  FIG. 1 is a side view of a seedling transplanter according to the first embodiment of the present invention, FIG. 2 is a plan view, and FIG. 3 is a front view of a control unit. The seedling transplanting machine according to the first embodiment of the present invention includes a traveling unit including left and right front wheels 10 and 10 and left and right rear wheels 11 and 11, a transmission case 12 that transmits transmission power integrally with the engine 20, The left and right front wheel final cases 13 and 13 that transmit and support the front wheels 10 and 10 and the left and right rear wheel gear cases 18 and 18 that transmit and support the left and right rear wheels 11 and 11 are provided, and the vehicle can travel on the field. 2 and a seedling planting device 4 for planting seedlings, which is provided at the rear portion of the traveling vehicle body 2 so as to be movable up and down by a lifting link mechanism 3.

  The power transmission path of the seedling transplanter is as follows. The engine 20 is mounted on the main frame 15, and the rotational power of the engine 20 is transmitted to the transmission case 12 via a belt transmission 21 and a hydraulic continuously variable transmission 23. The rotational power transmitted to the mission case 12 is shifted by a transmission in the case 12 and then separated into traveling power and external power to be extracted.

  A part of the traveling power is transmitted to the front wheel final case 13 to drive the front wheels 10 and 10, and the rest is transmitted to the rear wheel gear case 18 to drive the rear wheels 11 and 11. The left and right front wheel final cases 13 and 13 transmit and support the left and right front wheels 10 and 10 on the side of the transmission case 12, and the left and right rear wheel gear cases 18 and 18 pivot the left and right rear wheels 11 on the left and right sides of the body. An axle to be worn is provided so as to protrude from the left and right sides of the machine body, and receives right and left shift power from the transmission case 12.

  By operating the main speed change lever 19, the operator can continuously (steplessly) shift the hydraulic continuously variable transmission 23 from the seventh forward speed through the neutral position to the fourth reverse speed and operate the sub-speed change operation member 16. By doing so, a “road configuration” for traveling on a general road or the like by a known sub-transmission in the gear transmission, a “planting configuration” for traveling while performing planting work on a farm field, and traveling power It is the structure which can change the "neutral form" which interrupts and drives the seedling planting apparatus 4 grade | etc.,. This configuration will be described later. The operation stage of the hydraulic continuously variable transmission 23 is an example, and the number of stages may be set more finely, or the number of stages may be set roughly.

  Next, the external take-out power is transmitted to the planting clutch mechanism inside the planting clutch case 25 provided at the rear portion of the traveling vehicle body 2, and then transmitted to the seedling planting device 4 by the planting transmission shaft 26, and fertilizing It is transmitted to the fertilizer application 5 by a transmission mechanism (not shown). The seedling planting device 4 includes a transmission case 50 that receives power from the planting transmission shaft 26 at the rear of the machine body, and an operator supplies seedlings to the seedling mount 51 and seedlings are arranged in parallel according to planting conditions. Planting the seedlings placed in the cocoon 52 in the field.

The configuration of the seedling planting device 4 is as follows.
The seedling planting device 4 provided behind the traveling vehicle body 2 of the seedling transplanting machine shown in this case has a four-row planting structure, a transmission case 50 that also serves as a frame, and a mat seedling, and a left and right reciprocating movement to obtain a single seedling. .. Are fed to the seedling take-out outlets 51a,... Of each row and supplied to the seedling take-out outlets 51a,... A planting transmission case 50a extending rearward from the transmission case 50 is provided on both sides of the rear end of the planting transmission case 50a,... Yes. In the lower part of the seedling planting device 4, a center float 55 is provided in the center, and side floats 56, 56 are provided on the left and right sides thereof. When the aircraft is advanced with the center float 55 and the left and right side floats 56, 56 in contact with the mud surface of the field, the center float 55 and the left and right side floats 56, 56 slide while leveling the mud surface, A seedling is planted by the seedling planting pot 52,. Each of the floats 55, 56, and 56 is rotatably mounted so that the front end side thereof moves up and down according to the unevenness of the soil surface of the field. Up and down movement of the front part of the center float 55 is controlled in angle of attack during planting work. The planting depth of the seedling is always maintained constant by switching the hydraulic valve that controls the lifting hydraulic cylinder according to the detection result, and raising and lowering the seedling planting device 4 according to the detection result. The seedling planting device 4 is provided with a rotor 27 (center rotor 27a, side rotor 27b) as an example of a leveling device. In addition, the seedling mount 51 is configured to slide in the left-right direction using a support roller of a rectangular support frame 65 that is full in the left-right direction and the up-down direction that supports the entire seedling planting device 4 as a rail.

  The raising / lowering link mechanism 3 which raises / lowers the seedling planting apparatus 4 has a parallel link configuration, and includes one upper link 40 and a pair of left and right lower links 41, 41. These links 40, 41, 41 are pivotally attached to a rear frame-like rear frame 42 erected on the rear end portion of the main frame 15 on the base side, and a vertical link 43 is connected to the front end side thereof. Yes. A connecting shaft 44 that is rotatably supported by the seedling planting device 4 is inserted into and connected to the lower end portion of the vertical link 43, and the seedling planting device 4 is connected so as to be able to roll around the connecting shaft 44. And the upper link 40 rotates up and down by expanding and contracting hydraulic cylinders provided on the main frame 15 by hydraulic pressure, and the seedling planting device 4 is lifted and lowered in a substantially constant posture. A potentiometer, which is a lift detection member, is arranged between the rear frame 42 and the upper link 40 and the lower link 41 to detect the raising or lowering of the seedling planting device 4.

The configuration around the seedling transplanter operator is as follows.
The upper part of the engine 20 is covered with an engine cover 30, and a seat 31 is installed thereon. A front cover 32 incorporating various operation mechanisms is provided in front of the seat 31, and a handle 34 for steering the front wheel 10 is provided above the front cover 32, and the front cover 32 and the handle 34 form a control unit. On the right side of the handle 34, a main speed change lever 19 and a sub speed change operation member 16 are provided below the main speed change lever 19. The engine cover 30 and the front cover 32 have horizontal floor steps 35 on both the left and right sides of the lower end, and a saddle clutch pedal and the like are arranged. The floor step 35 is partly grid-shaped, and mud on the shoe of the worker walking through the step 35 does not stay on the floor step 35 but falls to the field. The rear part on the floor step 35 is a rear step 36 that also serves as a rear wheel fender.

  The fertilizer application device 5 is provided at the rear upper part of the traveling vehicle body 2 and feeds the granular fertilizer stored in the fertilizer hopper 60 by a certain amount by the feeding portions 61,..., And the fertilizer is floated by the fertilizer hoses 62,. Are guided to the fertilizer guides attached to the left and right sides of the fertilizer, and dropped into a fertilizer structure formed in the vicinity of the side portion of the seedling planting ridges 64,... Provided on the front side of the fertilizer guide. Air generated by the blower 58 driven by the blower electric motor 53 is blown into the fertilizer hose 62 through the air chamber 59 that is long in the left-right direction, and the fertilizer in the fertilizer hose 62 is forced by the wind pressure. It is designed to be transported.

  On both the left and right sides of the front part of the traveling vehicle body 2, the left and right spare seedling platforms 38, 38 on which the seedlings for replenishment are placed can be pivoted to a position protruding sideways from the machine body and a position stored inside. The left and right auxiliary seedling platforms 38 are supported by a support frame 49 having a base side disposed below the floor step 35 of the traveling vehicle body 2.

  The power transmission path when the auxiliary transmission operation member 16 is operated will be described with reference to the drive system diagrams of FIGS. The operator does not have to operate each of the plurality of connecting / disconnecting means to make the seedling transplanter perform a desired operation (road running, planting travel, etc.), and it is sufficient to operate the speed change operation member 16.

  FIG. 6 shows a drive system diagram of the seedling transplanter of FIG. The transmission receives power from the engine 20 and supplies power to a “traveling transmission system” that receives traveling power and a “planting transmission system” that receives planting power that is a part of the external extraction power. The “traveling transmission system” can provide power to the “planting traveling transmission system” on the field, which can reduce the speed and obtain torque, or the “road traveling transmission system” on the road, which can obtain the speed while suppressing torque. Supply. The “planting transmission system” supplies power to the “seedling planting unit” constituting the seedling planting device 4. The first connecting / disconnecting means 111 for power is provided between the transmission and the “traveling transmission system”, the second connecting / disconnecting means 112 is provided between the transmission and the “planting transmission system”, and the “traveling transmission system”. The third connecting / disconnecting means 113 between the “planting traveling transmission system” and the fourth connecting / disconnecting means 114 between the “traveling transmission system” and the “road traveling transmission system”, and the “planting transmission system”. And the “seed planting part” are each provided with a fifth disconnecting means 115.

  FIG. 7 shows a case where the auxiliary speed change operation member 16 is in the “on-road configuration”, that is, the traveling state of the traveling vehicle body 2 is suitable for traveling outside the field. In this case, the first connecting / disconnecting means 111 and the fourth connecting / disconnecting means 114 are connected, and the other connecting / disconnecting means are disconnected. When the sub-shift operation member 16 is positioned in the “on-road configuration” by the operator, the plurality of connecting / disconnecting means are operated so as to be in the state shown in FIG.

  FIG. 8 shows a case where the sub-transmission member 16 is in “planting form”, that is, the traveling state of the traveling vehicle body 2 is in a form suitable for traveling on the field. In this case, the first connection / disconnection means 111, the second connection / disconnection means 112, the third connection / disconnection means 113, and the fifth connection / disconnection means 115 are connected, and the fourth connection / disconnection means 114 is disconnected.

  FIG. 9 shows a case where the auxiliary transmission member 16 is in the “neutral form”. In this case, the second connection / disconnection means 112 and the fifth connection / disconnection means 115 are connected, and the first connection / disconnection means 111, the third connection / disconnection means 113, and the fourth connection / disconnection means 114 are disconnected. That is, since traveling power is not transmitted, the traveling vehicle body 2 is not driven back and forth, and only the seedling planting portion is driven.

  The arrangement position and the like of the auxiliary transmission operation member 16 are shown in FIGS. 1 to 3, and the configuration and the like of the auxiliary transmission operation member 16 are shown in FIGS. 4A is a plan view of the auxiliary transmission operation member 16 and the like viewed from above, and FIG. 4B is a rear view of the movement switching member 101 of the auxiliary transmission operation member 16 viewed from the rear. FIG. 5 is a diagram in which the auxiliary transmission operation member 16 and the movement switching member 101 are arranged at positions separated from each other, the periphery of the auxiliary transmission member 16 is represented by a plan view seen from above, and the movement switching member 101 is a rear view seen from the rear. It represents as.

  The seedling transplanting machine according to the present invention is provided with a movement switching member 101 for the auxiliary transmission operation member 16. When the sub-shift operation member 16 is operated when the sub-shift operation member 16 is positioned in the “planting configuration” (shown by the solid line in FIG. 4A), ”Position to the“ neutral form ”position (indicated by the broken line in FIG. 4A) about the pivot fulcrum 109. In this embodiment, “operating the movement switching member 101” means that an operator steps on the pedal board 108 constituting the movement switching member 101 from above, and when the operator steps on the pedal board 108, The connecting member 102 that pivots up and down about the pivot shaft in the vertical direction in the left-right direction of the body and thereby connects the sub-transmission operation member 16 and the movement switching member 101 is pulled to the left in FIG. 16 moves from the “planting configuration” position to the “neutral configuration” position. Since the movement of the movement switching member 101 is regulated by the lower part of the pedal board 108 coming into contact with the floor step 35, the movement distance of the movement switching member 101 is set so that the auxiliary transmission member 16 is moved from the “planting configuration” position to the “neutral” position. It is the length to move to the “form” position. In this case, the sub-transmission operation member 16 can be operated with the manual planting lever in the “planting” position and the main transmission lever 19 in the “forward” position.

  A torque spring, which is an urging member 103, is fitted to the rotation fulcrum of the movement switching member 101. When the operator removes his / her foot from the pedal board 108, the movement switching member 101 reaches the position shown in FIG. At the same time, the auxiliary transmission operation member 16 also returns from the “neutral form” position to the “planting form” position. Further, the pedal board 108 of the movement switching member 101 is disposed within the lateral width of the control unit.

  The “road configuration” of the auxiliary transmission operation member 16 is located on the opposite side of the “planting configuration” with the “neutral configuration” position as the center, and when the auxiliary transmission operation member 16 is in the “road configuration”, the connecting member Even if the connection between the sub-transmission operation member 16 is disconnected and the movement switching member 101 is operated, the sub-transmission operation member 16 is in the “road configuration” position, and the traveling state is maintained. Further, as shown in FIG. 5, there is no problem even if the connecting member 102 that connects the movement switching member 101 and the auxiliary transmission operation member 16 is a wire.

  When the sub-shift operation member 16 and the movement switching member 101 are provided, and the sub-shift operation member 16 is operated when the sub-shift operation member 16 is positioned in the “planting mode”, the sub-transmission operation member 16 is moved to the “planting mode”. By moving from the “position” to the “neutral form” position, it is possible to operate the seedling planting device 4 without running the machine body by operating only the movement switching member 101 without requiring operation of other operation levers. be able to. As a result, when starting planting from the field end, only the seedling planting device 4 is operated with the traveling vehicle body 2 stopped, and the situation where the first plant is not planted can be avoided. This eliminates the need for planting and improves work efficiency and improves planting accuracy.

  The movement distance of the movement switching member 101 is such that the auxiliary transmission operating member 16 is moved from the “planting configuration” position to the “neutral configuration” position. The movement to the “form” can be prevented, the sudden start contrary to the operator's intention is prevented, and the operability is improved.

  Further, by providing the urging member 103 that urges the movement switching member 101, when the operation of the movement switching member 101 is stopped, the movement switching member 101 returns to the original position, and the auxiliary transmission operation member 16 is Since it automatically returns to the “attachment” position, the planting operation can be continued as it is, and the work efficiency is improved.

  Even if the movement switching member 101 is operated when the sub-shift operation member 16 is in the “road configuration” position, the travel state of the “road configuration” is maintained, so that the sub-shift operation member 16 moves erroneously while traveling on the road. Even if the switching member 101 is operated, it is possible to prevent the machine body from being stopped due to the auxiliary transmission operation member 16 moving to the neutral position, and the operability is improved.

  In the seedling transplanting machine according to the present invention, the brake member 104 that simultaneously cuts off the transmission of the traveling power of the traveling vehicle body 2 and the planting power of the seedling planting device 4 is provided at the front portion of the traveling vehicle body 2 and the front cover. 32 on the right side. That is, the brake member 104 is provided on the right side that is one side left and right with respect to the vehicle body center line along the traveling direction, the movement switching member 101 is provided on the left side that is the left and right other side, and the movement switching member 101 is exclusively the left foot of the operator. It is configured to operate. The vehicle body center line along the traveling direction refers to a line that is parallel to the traveling direction and passes through the center of the front or rear wheels provided symmetrically. The brake member 104 is configured to rotate in the front-rear direction of the airframe around the left and right rotation axes.

  By providing the brake member 104 that cuts off the transmission between the traveling power of the traveling vehicle body 2 and the planting power of the seedling planting device 4, traveling and seedling planting can be interrupted simultaneously when a sudden stop is required. The planting of seedlings is prevented and the consumption of seedlings can be reduced.

  In addition, the brake member 104 is provided on the left and right sides with respect to the vehicle body center line along the traveling direction, and the movement switching member 101 is provided on the left and right sides, so that when the brake member 104 is operated, the movement is erroneously switched. The operation of the member 101 can be prevented and the operability is improved.

  By making the rotation operation directions of the brake member 104 and the movement switching member 101 different from each other, it becomes easy to determine whether or not the operation is correct in the operation direction, so that an erroneous operation can be prevented and operability is improved.

  Further, by arranging the movement switching member 101 within the left and right width of the control unit, it is possible to prevent an erroneous operation of the movement switching member 101 by the operator's feet getting on and off from the front side of the aircraft, and the safety of getting on and off the traveling vehicle body 2 is improved.

  The seedling transplanting machine according to the present invention includes a tuning mechanism 105 that synchronizes the rotation of the left and right front wheels 10 and 10, and a tuning on / off member 106 that turns on and off the operation of the synchronizing mechanism 105 on the floor step 35 of the seat 31. It is provided on the right side with respect to the vehicle body center line along the traveling direction. When the operator steps on the tuning on / off member 106, the front wheel tuning mechanism is disabled. The tuning on / off member 106 is configured to move up and down.

  By providing a tuning mechanism 105 that synchronizes the rotation of the left and right front wheels 10 and 10, and a tuning on / off member 106 that turns on and off the operation of the tuning mechanism 105, the traveling vehicle body 2 stops during turning in a swamp. Even so, the synchronization on / off member 106 can be operated to synchronize the rotation of the left and right front wheels 10 and 10 to obtain a strong propulsive force necessary for forward movement, so that it is possible to prevent the vehicle from moving during turning. , Work efficiency is improved.

  Further, by providing the synchronization on / off member 106 on one side of the vehicle body center line and the movement switching member 101 on the left and right other sides, it is possible to prevent an operator from performing an erroneous operation. Work efficiency is improved.

  By making the operation directions of the synchronization on / off member 106 and the movement switching member 101 different from each other, it becomes easy to determine whether or not the operation is correct in the operating direction, so that an erroneous operation can be prevented and operability is improved.

  In FIG. 10, sectional drawing from the back of the fertilizer application 5 concerning 3rd embodiment is shown, and the explanatory view which looked at the fertilizer bag cutting piece 120 with which the fertilizer application 5 of FIG. The fertilizer applicator 5 is provided with fertilizer bag cutting pieces 120 and 120 in the fertilizer hoppers 60 at the left and right ends, respectively. These fertilizer bag cutting pieces 120 are directly attached to the hopper support frame with bolts so as to be higher than the sensing position of the fertilizer sensing sensor 121 and to obtain rigidity. The fertilizer bag cutting piece 120 is configured to fix the cutting portion 123 protruding upward on the support plate 122, and couples the support plate 122 and the hopper support frame. The cutting part 123 has a rounded upper surface and a side surface with irregularities 124. The length of this unevenness for one cycle is equal to or greater than the thickness of the cut portion 123. In addition, when the cutting part 123 is gas-cut, the gas-cut surface can be used as the uneven part.

  By providing the fertilizer bag cutting piece 120 inside the fertilizer hopper 60 of the fertilizer application device 5, the fertilizer bag can be broken by the fertilizer bag cutting piece 120 when the end of the fertilizer bag is introduced into the fertilizer hopper 60. 60 can be easily replenished with fertilizer. Moreover, a fertilizer bag can be easily torn by providing the unevenness | corrugation 124 in a side surface. Furthermore, when the length of one cycle of the unevenness 124 is equal to or greater than the thickness of the cutting portion 123, the operator can be prevented from being injured at that portion.

  In FIG. 12, the block diagram of the starter part of the engine 20 of the seedling transplanter concerning 4th embodiment is shown. The engine 20 uses a recoil starter in which an operator rotates the crankshaft 140 with a rope attached to the engine 20. The engine 20 according to the fourth embodiment employs a configuration in which a crankshaft 140 is started using a mainspring spring 134 in addition to a method in which an operator starts the engine 20 using a rope. With such a configuration, it is possible to easily start the engine 20 using the recoil starter.

  12 is a plan view of the structure of the starter portion as viewed from above. FIG. 12A is a state where the engine 20 is stopped, FIG. 12B is a state when the engine 20 is started, and FIG. c) shows a state in which the mainspring spring 134 is wound up after the engine 20 is rotated.

  As shown in FIG. 12A, rotational energy is stored in the mainspring spring 134 when the engine 20 is stopped. Then, the operator connects the mainspring shaft 138 and the mainspring hoisting gear 132 by the connecting member 137 by using the operation lever 139 and closes the safety clutch 133 at the same time, so that the mainspring spring 134 causes the crankshaft gear 130 to be connected to the engine 20. It stops in a state where a rotational force is applied in a direction different from the normal rotation direction.

  Next, when starting the engine 20, the operator connects the mainspring shaft 138 and the starting gear 135 by the connecting member 137 using the operation lever 139. Then, the start gear 135 rotates according to the rotational energy of the mainspring spring 134, rotates the crankshaft gear 130 in the normal rotation direction of the engine 20 through the connection gear 137, and starts the engine 20.

  When the engine 20 is started, the operator returns the operation lever 139 to the position shown in FIG. As a result, the rotation of the crankshaft 140 of the engine 20 rotates the crankshaft gear 130 via the one-way clutch 131, and further rotates the mainspring hoisting gear 132, whereby the relaxed mainspring spring 134 is wound up again. And it is set as the structure which the safety clutch 133 disconnects as shown in FIG.12 (c) in the stage which stored the fixed rotational energy.

  In addition, the seedling planting device 4 of the seedling transplanting machine according to the fourth embodiment is provided with a sensor for determining the presence or absence of seedlings for each seedling placement table 51, and the number of seedlings on the seedling placement table 51 is below a certain amount by the sensor. When it is detected that the engine 20 has been detected, the engine 20 is automatically stopped. Furthermore, the preliminary seedling stage 38, 38 is provided with a sensor for determining the presence or absence of seedlings at each stage, and if it is determined that there is no seedling necessary for replenishment on the preliminary seedling stage 38, fuel is saved. Therefore, the engine 20 is not stopped. Although the engine 20 is stopped when the seedling placement table 51 runs out of seedlings, the brake member 104 and the main transmission lever 19 can be automatically moved to the neutral position.

DESCRIPTION OF SYMBOLS 1 Seedling transplanter 2 Traveling vehicle body 4 Seedling planting device 10 Front wheel 16 Sub transmission operation member 101 Movement switching member 103 Biasing member 104 Brake member 105 Tuning mechanism 106 Tuning on / off member

Claims (7)

A traveling vehicle body (2) traveling in the field;
A seedling planting device (4) for planting seedlings in the field,
A sub-transmission operation member (16) for switching the traveling state of the traveling vehicle body (2) to a “road configuration”, a “planting configuration”, and a “neutral configuration”;
A movement switching member (101) of the auxiliary transmission operation member (16) is provided,
When the sub-shift operation member (16) is positioned in the “planting mode”, if the movement switching member (101) is operated,
The seedling transplanting machine, wherein the sub-transmission operation member (16) moves from a "planting configuration" position to a "neutral configuration" position. A connection member (102) for connecting the movement switching member (101) and the auxiliary transmission operation member (16);
An urging member (103) for urging the movement switching member (101);
The seedling transplant according to claim 1, wherein the movement distance of the movement switching member (101) is a length for moving the auxiliary transmission operation member (16) from the "planting configuration" position to the "neutral configuration" position. Machine. When the auxiliary transmission operation member (16) is in the “road configuration” position,
The seedling transplanting machine according to claim 2, wherein even when the movement switching member (101) is operated, the traveling state of “on-road configuration” is maintained. Traveling power of the traveling vehicle body (2);
A brake member (104) for interrupting transmission with the planting power of the seedling planting device (4) is provided,
The brake member (104) is provided on the left and right sides with respect to the vehicle body center line along the traveling direction,
The seedling transplanting machine according to any one of claims 1 to 3, wherein the movement switching member (101) is provided on the left and right other side. The brake member (104) is configured to rotate in the longitudinal direction of the fuselage,
The movement switching member (101) is configured to rotate in the left-right direction of the fuselage,
The seedling transplanting machine according to claim 4, wherein the movement switching member (101) is disposed within a lateral width of a control portion provided on the front side of the traveling vehicle body (2). A tuning mechanism (105) for synchronizing the rotation of the left and right front wheels (10, 10) of the traveling vehicle body (3);
A tuning on / off member (106) for turning on / off the operation of the tuning mechanism (105);
The synchronous on / off member (106) is provided on the left and right sides with respect to the vehicle body center line, and
The seedling transplanting machine according to any one of claims 1 to 3, wherein the movement switching member (101) is provided on the left and right other side. The synchronous on / off member (106) is configured to move up and down,
The seedling transplanting machine according to claim 6, wherein the movement switching member (101) is configured to rotate in the horizontal direction of the machine body.

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