JP4626732B2 - Seedling transplanter - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a walking type cigarette or vegetable seedling transplanting machine in which an airframe travels following a cocoon.
[0002]
[Prior art]
A pair of left and right wheels provided across the heel is provided at the front of the aircraft, and a steering handle is provided at the rear of the aircraft so that the pilot can operate the vehicle while following the progression of the aircraft during walking. The machine is known.
[0003]
In the seedling transplanting machine, there is a transplanting machine having a configuration in which a pair of traveling wheels are provided on the left and right in the advancing direction of the machine body, and a heel guide roller is provided in front of the pair of traveling wheels. The heel guide roller that comes into contact with the heel slope has a function of guiding the traveling wheel in the heel direction even when the heel direction is bent.
[0004]
[Problems to be solved by the invention]
In the above-mentioned conventional walking type seedling transplanter, when the width of the heel changes, the width of the pair of traveling wheels that travel in the valley of the heel must be changed. However, when changing the width of the pair of traveling wheels and starting the planting operation, it is often forgotten to match the width of the pair of heel guide rollers to the changed width of the heel.
[0005]
Therefore, the object of the present invention is to make a walking seedling transplanter that does not forget to adjust the width of the pair of heel guide rollers when the width of the heel wheel changes and the width of the traveling wheel matches the changed heel width. Is to provide.
[0006]
  In order to solve the above problems, the present invention has the following configuration.
  In other words, a pair of left and right traveling wheels (3, 3) in the traveling direction that travels in the valley of the straw so as to straddle the straw in the field, and the installation position at which the left and right positions of the pair of traveling wheels (3, 3) can be changed A changing mechanism (front wheel support frame 17) is provided, and the installation position changing mechanism (front wheel support frame 17) is in contact with the inclined surface of the heel.A pair of left and right畝 Guide rollers (35, 35)attachment,The installation position changing mechanism (17) includes left and right traveling wheel support inner arms (17c, 17c) that respectively support the left and right traveling wheels (3, 3), and the left and right traveling wheel support inner arms (17c, 17c). ), And the left and right traveling wheel support inner arms (17c, 17c) are respectively inserted at one end and the other end thereof, and the traveling wheel support outer arm is fixed so that the insertion position can be changed. 17b), and the mounting mechanism of the left and right saddle guide rollers (35, 35) to the installation position changing mechanism (17) is a left and right roller support for supporting the left and right saddle guide rollers (35, 35), respectively. The inner arm (36b, 36b) and the roller support inner arm (36b, 36b) are inserted into one end and fixed so that the mounting angle can be changed. Left and right saddle guide roller support arms (36, 36) comprising left and right roller support outer arms (36a, 36a) fixed to the traveling wheel support inner arms (17c, 17c) so that the mounting angle can be changed. A roller rotating shaft support member (37, 37) provided between the roller support inner arm (36b, 36b) and the guide guide roller (35, 35) and supporting the shaft of the guide guide roller (35, 35). And pins (39a, 39a) for rotatably joining the roller rotation shaft support members (37, 37) to the roller support inner arms (36b, 36b).It is a seedling transplanter.
[0007]
  When the heel width is different, or when you want to change the seedling planting position in the left-right direction toward the direction of the transplanting machine relative to the heel,(3, 3)As the left and right positions of theRoller (35)As the left and right positions of the are also changed, guideRoller (35)Left and right positionofThere is no need to make any special changes, and workability is improved compared to conventional walking-type seedling transplanters.
  Also, the roller support outer arms (36a, 36a) of the rod guide roller support arms (36, 36) that support the rod guide rollers (35, 35) are installed in the installation position changing mechanism (17) of the traveling wheels (3, 3). Since it is fixed to the traveling wheel support inner arm (17c, 17c) so that the mounting angle is adjustable, the traveling wheel support outer arm (17b) of the installation position changing mechanism (17) and both end sides according to the width of the flange (U). When the traveling wheel support inner arms (17c, 17c) are set, the saddle guide rollers (35, 35) are also moved at the same time, so that the adjustment of the installation position changing mechanism (17) with respect to the saddle width is not forgotten.
  The roller support outer arms (36a, 36a) and the roller support inner arms (36b, 36b) of the rod guide roller support arms (36, 36) that support the rod guide rollers (35, 35) are fixed by changing the mounting angle. Therefore, the roller surface of the rod guide roller (35, 35) can be brought into contact with the normal line of the inclined surface of the rod.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The side view of FIG. 1 and the top view of FIG. 2 are the whole structure diagrams of the vegetable transplanting machine as an example of the seedling transplanting machine of this invention. This vegetable transplanting machine 1 is made up of a seedling feeding device 4, a seedling planting device 5, etc. while the machine body is advanced in a state of straddling U by a traveling part 1 a having traveling wheels 2, 2, 3, 3. In the part 1b, a vegetable pot seedling is planted on the upper surface of the bowl U. The operator appropriately steers the aircraft with the steering handle 6 provided at the rear of the aircraft, and supplies seedlings to the seedling supply device 4 while walking on the side of the aircraft during planting work. Hereinafter, the configuration of each unit will be described.
[0009]
The traveling unit 1a will be described.
An engine 9 is disposed on the front side of the traveling unit mission case 7. A hydraulic pump 10 that is driven by the power of the engine 9 is provided on the left side surface of the engine 9. Further, a fuel tank 11 and the like are provided on the upper side of the engine 9, and a bonnet 12 covers the upper side thereof. A long connecting frame 13 having a rectangular shape in side view is integrally provided on the back surface of the traveling unit mission case 7, and the front end portion of the main frame 14 that connects the traveling unit 1 a and the steering handle 6 to the right rear end of the connecting frame. Are firmly connected. The main frame 14 extends rearward through the right side of the planting part 1b in plan view, bends obliquely upward in the middle, and extends as it is to the rear position of the planting part 1b. The steering handle 6 is fixedly attached to the rear end portion.
[0010]
Traveling transmission cases 16, 16 are integrally attached to the rotating cylinders 15, 15 projecting from the left and right side surfaces of the traveling unit transmission case 7, and the rear wheels 2 that are driving traveling wheels are attached to the distal ends of the traveling transmission cases 16, 16. 2 is pivotally supported. Further, front wheel support rods 18 and 18 are attached to the left and right ends of a front wheel support frame 17 provided on the lower side of the engine 9 so as to be swingable around a pivot shaft 17a in the front-rear direction. , 18 are supported on the front wheels 3 and 3 which are driven traveling wheels.
[0011]
The traveling unit 1a is provided with a machine control mechanism that controls the machine position by moving the rear wheels 2 and 2 up and down relative to the machine. In this airframe control mechanism, the ground plate 28 detects the upper surface of the bag and controls the lifting cylinder 21 in the hydraulic valve unit 20 via the sensing link mechanism 29. The hydraulic valve unit 20 disposed on the traveling unit transmission case 7 is provided with an elevating cylinder 21 toward the rear thereof, and a balance rod 22 is provided around the vertical axis at the tip of the piston rod 21a of the cylinder 21. It is pivotally attached. The piston rod 21 a slides along a guide shaft 24 supported by the hydraulic valve unit 20 and an attachment member 23 attached to the main frame 14. The left and right ends of the balance rod 22 and the swing arms 25 and 25 fixed to the rotary cylinders 15 and 15 are connected via connecting rods 26 and 26. The left connecting rod 26 has a rolling cylinder 27 incorporated therein, and the length of the connecting rod 26 can be changed by expanding and contracting the cylinder 27.
[0012]
The elevating cylinder 21 and the rolling cylinder 27 are operated by controlling the hydraulic oil supplied from the hydraulic pump 10 with a control valve (not shown) in the hydraulic valve unit 20. When the lifting / lowering cylinder 21 is expanded and contracted, the balance rod 22 moves back and forth, and the swing arm 25 is connected to the lifting / lowering cylinder 21. The rear wheels 2 and 2 move up and down with respect to the aircraft by the same amount in the same direction, and the aircraft moves up and down. Further, when the rolling cylinder 27 is expanded and contracted, the left and right rear wheels 2 and 2 move up and down by the same amount in the opposite direction, and the body tilts to the left and right.
[0013]
Next, the structure of the planting part 1b is demonstrated.
The lower part of the planting part mission case 30 transmitted from the traveling part mission case 7 is fixed to the upper surface of the connecting frame 13, and the base part of the first planting transmission case 31 is fixed to the upper part of the planting part mission case 30; Furthermore, the base of the second planting transmission case 32 is fixed to the tip of the first planting transmission case 31. The first planting transmission case 31 and the second planting transmission case 32 are connected to an operation mechanism of a seedling planting device 5 described later. The seedling planting tool 60, which will be described later, is located on the rear side of the traveling unit 1a. Further, a seedling placing stand 55 is attached to the upper frame 34 whose base is fixed to the planting part mission case 30, the seedling supply device 4 is disposed behind the seedling placing stand 55, and the seedling feeding device 4 and the seedling placing described later are provided. The stand 55 is arranged so as to be positioned above the seedling planting tool 60.
[0014]
As shown in FIG. 3, the input shaft 30a of the planting part mission case 30 protrudes forward from the lower end of the case 30, and when this is inserted into the PTO extraction part 7a of the traveling part mission case 7, the input shaft 30a The shaft is connected to a shaft (not shown) on the traveling portion side in the PTO extraction portion 7a. The planting part mission case 30 is detachably attached to the connecting frame 13 by bolts 38. For this reason, by removing the bolts 38, and removing the input shaft 31a from the PTO extraction portion 7a, the planting portion 1b can be detached from the traveling portion 1a, and maintenance of the planting portion 1b can be easily performed.
[0015]
In the side view, the planting part mission case 30 is provided rearward and upward from the connection frame 13, and the first planting transmission case 31 is provided rearward and downward from the upper end part of the planting part mission case 30, and the second planting The auxiliary transmission case 32 is provided horizontally rearward from the lower end of the first planting transmission case 31. With this configuration, a space for moving the balance rod 22 below the second planting transmission case 32 is ensured without making the longitudinal length of the airframe longer than necessary.
[0016]
Further, in plan view, the planting part mission case 30 is fixed to the right end of the connection frame 13, and is located on the right side of the airframe control mechanism formed between the elevating cylinder 21, the balance rod 22, and the right connection rod 26. It extends upward through the space. The first planting transmission case 31 is arranged on the left side of the planting part mission case 30, and the second planting transmission case 32 is arranged further on the left side of the first planting transmission case 31. Since the right space part is wider than the left space part by the amount that the rolling cylinder 27 is not provided, it is preferable to arrange the planting part mission case 30 on the right side.
[0017]
In addition, by arranging the planting part mission case 30, the first planting transmission case 31, and the second planting transmission case 32 in the left and right direction, the right and left weight balance is improved.
[0018]
As shown in FIG. 4, the mounting shafts for the eaves guide rollers 35 and 35 are provided on the front wheel support frame 17 in which the front wheel support rods 18 and 18 that are shafts for adjusting the tread of the front wheels are mounted at both ends. There are features.
[0019]
The pair of left and right heel guide rollers 35 are attached obliquely so as to be perpendicular to the slope of the heel, and when the seedling transplanting operation is performed, the front wheels 3 and 3 (also the rear wheels 2 and 2) plant seedlings. The heel guide rollers 35, 35 are placed along the two slopes of the heel so as to straddle the heel to be performed. Then, the rear wheels 2 and 2 are rotated to advance the aircraft.
[0020]
When the heel is bent, the heel guide rollers 35 and 35 that rotate inside the front wheels 3 and 3 are pushed against the slope of the heel so that the traveling direction of the machine body is changed. This action causes the aircraft to follow the heel.
[0021]
The eaves guide rollers 35 and 35 are rotatably attached to the ends of the eaves guide roller support arms 36 and 36 through roller rotation shaft support members 37 and 37 having a “U” cross section. The guide roller support arms 36 and 36 are made up of outer arms 36a and 36a on the base side and inner arms 36b and 36b on the tip side, and the outer arms 36a and 36a and the inner arms 36b and 36b are attached with set bolts 38 and 38. Since the angle can be changed and fixed, the roller surfaces of the rod guide rollers 35 and 35 can be brought into contact with the normal line of the inclined surface of the rod.
[0022]
The outer arm 17b and the inner arms 17c, 17c of the front wheel support arm 17 are attached so as not to slide to the left and right by pins 17d, 17e in the front-rear direction in FIG. 4 (pin 17e is not shown).
[0023]
A plurality of holes (not shown) into which the pins 17d and 17e are inserted are arranged on the left and right sides of the inner arms 17c and 17c, the holes into which the pins 17d and 17e are inserted are selected, and the front wheels 3, The tread of 3 is decided.
[0024]
Further, a base portion of the outer arm 36a of the saddle guide roller support arm 36 is externally inserted into the inner arm 17c of the front wheel support arm 17 on the front wheel support rod 18 side from the outer arm 17b. The arm 17c, 17c can be fixed by changing the mounting angle with a set bolt 38.
[0025]
Accordingly, when setting the outer arm 17b of the front wheel support arm 17 and the inner arms 17c, 17c on both ends in accordance with the width of the heel U, the heel guide rollers 35, 35 also move simultaneously. Never forget the adjustments to.
[0026]
As described above, with the simple attachment structure of the eyelid guide rollers 35 and 35 shown in FIG. 4, the attachment position of the eyelid guide rollers 35 and 35 can be adjusted freely according to the size of the eyelids.
[0027]
As shown in FIG. 5, the scissors guide roller 35 is attached to the tip of the scissors guide roller support arm 36 via a roller rotation shaft support member 37 having a U-shaped cross section. The roller rotation shaft support member 37 is a semicircular mounting piece. The guide guide roller support arm 36 is fixed to the tip end of the guide guide roller 36. The feature of the configuration shown in FIG. 5 resides in the semicircular mounting piece 39, which joins the heel guide roller support arm 36 and the roller rotating shaft support member 37 via a pin 39a provided at the center thereof, and the semicircular mounting piece. A pair of elongated holes 39b and 39b are provided along the semicircular curved surface at a symmetrical position around the pin 39a in the piece 39, and the semi-circular shape is formed by a bolt 39c through the elongated holes 39b and 39b. The mounting piece 39 and the roller rotating shaft support member 37 are fixed.
[0028]
As shown in FIG. 5, in the attachment structure of the saddle guide roller 35, the bolt 39c fixed to one of the long holes 39b is removed, and the semicircular attachment piece 39 is rotated by 180 ° around the pin 39a. When the rod guide roller support arm 36 and the roller rotating shaft support member 37 are fixed to each other through the bolt 39c transferred to the other elongated hole 39b of the semicircular mounting piece 39, the mounting structure shown in FIG. 35 is obtained, and the attachment structure of the left and right saddle guide rollers 35 is not manufactured.
[0029]
Although not shown, by adopting a configuration in which the position of the pin 39a is shifted from the center of the semicircular mounting piece 39, the semicircular mounting piece 39 is rotated by 180 ° around the pin 39a. Then, when the eaves guide roller support arm 36 and the roller rotating shaft support member 37 are fixed through the elongated hole 39b of the semicircular mounting piece 39, as shown in FIGS. 6 (a) and 6 (b), the eaves guide roller 35 The structure which changed the height with respect to the heel U is obtained, and the adaptability with respect to the heel U of the heel guide roller 35 is expanded.
[0030]
Further, when the configuration of the heel guide roller 35 as shown in FIG. 7A is used, the heel guide roller 35 can be matched with various ridge shapes.
The rod guide roller 35 is attached to the tip of the rod guide roller support arm 36 via a roller rotation shaft support member 37 having a U-shaped cross section. The roller rotation shaft support member 37 is fixed to the tip of the rod guide roller support arm 36. It is joined to the rod guide roller support arm 36 so as to be rotatable around a pin 39a provided at the center of the mounting piece 39. Since the attachment piece 39 has an elongated hole 39b, the bolt guide roller support arm 36 is adjusted by fixing the attachment position of the attachment piece 39 and the roller rotating shaft support member 37 with a bolt 39c passing through the elongated hole 39b. The mounting angle between the direction in which the roller extends and the axial direction of the rod guide roller 35 can be changed.
[0031]
With the above-described configuration, the height H in the height direction that abuts against the collar side surface of the collar guide roller 35 and the length L in the width direction are various heights H1, H2, and L1, as shown in FIG. L2 is obtained. When the inclined surface of the kite is flat and neatly formed, the kite guide roller 35 is in a state of height H1 and length L1 so that the aircraft is stably guided to the kite. On the other hand, when the slant surface of the kite is uneven in the vertical direction (it is not neatly formed), the kite guide roller 35 is set to the height H2 and length L2 so that the aircraft is not steered unnecessarily. . Further, even when the heel is low, the heel guide roller 35 is in the state of height H2 and length L2 so that the aircraft is accurately guided to the heel. In this way, applicability to the shape of the ridge U is expanded.
[0032]
Further, as shown in FIG. 8, a pair of rod guide roller support arms 36, 36 having the rod guide rollers 35, 35 attached to the distal ends may be crossed and the crossing angle may be adjusted by the grip bolt 43. A pair of eaves guide roller support arms 36 shown in FIG. 8 includes an inner piece 36b on the eaves guide roller 35 side, an outer side 36a opposite to the inner side 36b, and a plate piece 36c with an elongated hole 36d provided fixed to the end side of the outer side 36a. Consists of.
[0033]
In the example shown in FIG. 8, the long holes 36d of the plate pieces 36c of the pair of saddle guide roller support arms 36 intersect each other, and the intersecting angle is adjusted and fixed by the grip bolts 43 penetrating the long holes 36d. . The crossing angle of the arms 36, 36 fixed by the grip bolt 43 is provided through the reinforcing plates 44, 44 provided in the pair of saddle guide roller support arms 36, 36 and their long holes 44a, 44a, respectively. The grip bolt 45 is also held. Further, the tip of the pair of saddle guide roller support arms 36, 36 on the side of the saddle guide rollers 35, 35 is rotatably and freely extendable via saddle guide roller support plates 36e, 36e fixed to the saddle guide rollers 35, 35. It is attached.
[0034]
Therefore, with the attachment structure of the saddle guide roller 36 shown in FIG. 8, the angle of the left and right saddle guide rollers 35, 35 is changed by loosening the grip bolt 43 and changing the crossing position of the left and right saddle guide roller support arms 36, 36. Since the positions can be adjusted simultaneously, the angle and position of the left and right eyelid guide rollers 35 and 35 can be maintained symmetrically, and the eyelid guide roller 35 can be easily adapted according to the shape and size of the eyelids.
[0035]
Further, as shown in FIG. 9, the front wheel 3 can be adjusted up and down with respect to the front wheel support arm 17 by a plurality of mounting holes 18 a of the front wheel support rod 18. The mounting height is changed, and it is possible to easily adjust the mounting height of the heel guide roller 35 without forgetting it. As a result, the heel following ability is improved and the vertical adjustment mechanism of the heel guide can be simplified.
As shown in FIG. 10, the rod guide roller 35 that performs rod guide may be configured to move up and down in conjunction with the lifting / lowering chain case 16 (FIG. 1). In the configuration shown in FIG. 10, the rod guide roller 35 is fixed to the tip of a rod guide roller support arm 36 that is rotatably attached to the front wheel support frame 17 of the front wheel support rods 18 and 18.
[0036]
Further, the rod guide roller support arm 36 is composed of an outer arm 36a and an inner arm 36b, and the outer arm 36a and the inner arm 36b can be fixed by changing the mounting angle with a set bolt 38, so that they are attached to the tip of the inner arm 36b. Further, the heel guide roller 35 can be rotatably fixed to the guide roller support arm 36 in accordance with the inclination angle of the inclined surface of the heel, and can be brought into perpendicular contact with the slope of the heel. A portion of the outer arm 36a connected to the attachment member 36aa to the front wheel support frame 17 and a rod 48 connected to the attachment member 16a of the chain case 16 are provided. An attachment member 36aa to the front wheel support frame 17 and an attachment member 16a of the chain case 16 are rotatably connected to both ends of the rod 48 by a U-shaped member 48a. A long hole 48b of the rod 48 is provided in the mounting member 16a of the chain case 16.
[0037]
In the heel guide roller mounting structure shown in FIG. 10, the handle 6 is lifted and the device in front of the machine body is sufficiently lifted from the heel to perform the turning operation when the seedling transplanter is turning. Since the outer arm 36a of the heel guide roller support arm 36 is pulled and rotates upward about its base, the heel guide roller 35 and the heel guide roller support arm 36 attached to the front of the machine body move upward. At this time, since the long hole 48b is provided in the rod 48 on the side of the chain case 16, the heel guide roller 35 moves up behind the start of the upward rotation of the seedling transplanter.
[0038]
In a transplanter of the type in which the front wheel 3 is fixed up and down and only the rear wheel 2 is moved up and down, if the heel guide roller 35 is extended forward from the front wheel 3, the heel guide roller 35 moves downward when the machine is lifted, It comes to hold down. In order to solve this, the configuration shown in FIG. 10 is not interlocked during normal use of the seedling transplanter, but the heel guide roller 35 is automatically lifted when the machine is lifted to some extent. In this way, the heel guide roller 35 does not overpress the heel during normal operation and does not get in the way when the seedling transplanter turns.
[0039]
Next, description of the seedling supply device 4 and the seedling planting device 5 will be simplified.
The seedling supply device 4 includes a turntable 41 in which a plurality of seedling supply cups 40 are arranged at equal intervals on the circumference. This turntable 41 is arranged at a position slightly to the right of the left and right center of the aircraft. Although the detailed description of the turntable 41 is omitted, the turntable 41 is rotatably provided with the central shaft 42 (FIG. 2) as a fulcrum, and is synchronized with the operation of the seedling planting device 5 by the mounting interval of the seedling supply cups 40. Each of the seedling supply cups 40,... Is rotated intermittently, and a shutter (not shown) at the bottom of each seedling supply cup 40,. The seedlings to be supplied can be planted in the cocoon (from the tool 60). In addition, the cup-shaped seedling planting tool 60 moves along the locus indicated by a one-dot chain line X in FIG. Plant it in a cocoon.
[0040]
A seedling stage 55 on which a seedling tray is placed is provided on the front side of the turntable 41. The seedling mount 55 is attached via a mounting rod (not shown) protruding forward from the upper frame 34, and is provided so as to horizontally support the seedling tray.
[0041]
The seedling supply cups 40,... Are replenished manually with pot seedlings on the seedling tray placed on the seedling placing stand 55. When the seedling supply cup 40 containing seedlings is moved to the seedling supply position by the rotation of the turntable 41, the shutter (not shown) is opened and the seedlings fall into the seedling planting tool 60 of the seedling planting device 5.
[0042]
A pair of left and right pressure-reducing wheels 80 and 80 are provided behind the seedling planting position.
The pressure-reducing wheels 80, 80 are attached obliquely so that the distance between them is narrower toward the lower part, and are urged downward by a weight 81 loosely fitted to the rod 92, and the heel surface is moved along with the progress of the fuselage. After rolling, the soil around the seedling transplant hole after the seedling is planted collapses to refill the hole, and the trace is lightly crushed.
[0043]
The rod 92 is attached to a rear end portion of a swing frame 87 supported by a support frame 86 fixed to the front and rear intermediate portion of the main frame 14 so as to be swingable up and down.
When the pressure-reducing wheels 80, 80 move up and down relative to the airframe according to the unevenness of the saddle surface, the grounding plate 28 due to the vertical movement of the pressure-reducing wheels 80, 80 detects the upper surface of the saddle, and the hydraulic valve via the sensing link mechanism 29 The lift cylinder 21 is actuated in such a direction that the angle of the swing frame 87 is returned to the original position, which is transmitted to a lift hydraulic valve (not shown) in the unit 20. Thus, the aircraft is controlled to move up and down so that the height from the upper surface of the bag to the aircraft is maintained constant.
[0044]
Further, a pressure-reducing wheel fixing lever 90 is rotatably supported at the rear portion of the main frame 14, and the pressure-reducing wheel fixing lever 90 fixes the pressure-reducing wheels 80, 80 at a position where they are raised to a non-grounding state.
[0045]
Since the swing frame 87 is arranged on the right side of the machine body, an operator walking on the left side of the machine body does not come into contact with the swing frame 87 and can perform reliable pressure reduction and can accurately lift and lower the machine body. .
[0046]
The steering handle 6 is substantially U-shaped in plan view with both ends extending rearward, and grips 6a and 6a are attached to both ends. When turning or traveling on the road, the operator grips the grips 6a and 6a to operate. Since the steering handle 6 is shifted from the right and left center of the aircraft to the right side, it is easy to operate the handle and replenish the seedling while walking in the groove on the right side of the heel, and to replenish the seedling while walking the left side of the aircraft. Do not get in the way when doing.
[0047]
Side clutch levers 100, 100 are provided below the grips 6a, 6a. In addition, an operation panel 101 is provided at the base of the steering handle 6, and the operation panel 101 is used to turn on / off a planting clutch that is transmitted to the seedling supply device 4 and the seedling planting device 5 and to move the aircraft up and down. A planting lift lever 102, a main clutch lever 103 for turning on and off the main clutch, and the like are provided.
[0048]
Further, in a seedling transplanting machine in which the front wheel 3 is a driving wheel and the front and rear wheels 3 and 2 are both moved up and down, the handle 6 is lifted to lift the rear wheel 3 off the field, and the body is turned by the front wheel 3. In this type of transplanter, the base side of the heel guide roller support arm 36 attached to the front of the machine body is rotatable in the vertical direction, and as shown in FIG. The spring 46 is set on. The handle 6 (FIG. 1) may be lifted to automatically lift the heel guide roller 35 in front of the machine body so as not to interfere with the turning of the seedling transplanter.
[0049]
At the time of turning of the seedling transplanter, the handle 6 is lifted and the device in front of the machine body is sufficiently lifted from the heel U to perform the turning operation. At this time, the heel guide roller 35 and the heel guide roller support arm 36 attached to the front of the machine body When tilted more than a certain amount, the fulcrum of the spring 46 is exceeded, and the heel guide roller 35 and its support arm 36 are housed above the ridge U by the spring force. At this time, a link 47 interlocking with the upward movement of the rod guide roller support arm 36 extends from the chain case 16.
[0050]
After turning the seedling transplanter, if the front wheels 3 and 3 are raised relative to the machine body, the inclination angle of the chain case 16 with respect to the heel plane changes, so the heel guide roller support arm 36 is attached to the link 47 linked to the chain case 16. When a downward movement force is applied and the spring 46 is tilted more than a certain angle, the spring 46 is over the fulcrum, and the heel guide roller 35 is set on the heel in a working state by the spring force.
[0051]
【The invention's effect】
According to the present invention, when the width of the heel is changed and the width of the traveling wheel is adjusted to the changed heel width, the width of the pair of heel guide rollers is not forgotten to match the changed width of the heel.
[Brief description of the drawings]
FIG. 1 is a side view of a seedling transplanter according to an embodiment of the present invention.
FIG. 2 is a plan view of the seedling transplanter of FIG.
FIG. 3 is a perspective view of a connecting portion between a traveling part and a planting part of the seedling transplanting machine in FIG. 1;
4 is a perspective view of the vicinity of a heel guide roller of an embodiment of the seedling transplanting machine of FIG. 1. FIG.
5 is a perspective view of the heel guide roller mounting portion of the embodiment of the seedling transplanter of FIG. 1 (FIG. 5A), and a front view when the heel guide roller is applied to the heel (FIG. 5B) ).
6 is a perspective view of the vicinity of a heel guide roller of one embodiment of the seedling transplanting machine of FIG. 1; FIG.
7 is a perspective view of the vicinity of the heel guide roller of the embodiment of the seedling transplanter of FIG. 1; FIG.
FIG. 8 is a perspective view of the vicinity of a heel guide roller of an embodiment of the seedling transplanting machine of FIG. 1;
FIG. 9 is a perspective view of the vicinity of the heel guide roller of the embodiment of the seedling transplanter of FIG. 1;
10 is a perspective view of the vicinity of a heel guide roller of an embodiment of the seedling transplanter of FIG. 1. FIG.
FIG. 11 is a perspective view of the vicinity of a heel guide roller of an embodiment of a seedling transplanting machine of the type that lifts a rear wheel with a handle and turns by driving a front wheel.
[Explanation of symbols]
1 Vegetable transplanter 1a Traveling part
1b Planting part 2 Rear wheel
3 Front wheel 4 Seedling supply device
5 Seedling planting device 6 Steering handle
6a Grip 7 Traveling part mission case
7a PTO extraction part 9 Engine
10 Hydraulic pump 11 Fuel tank
12 Bonnet 13 Connecting frame
14 Main frame 15 Rotating tube
16 Traveling transmission (chain) case 16a Mounting member
17 Front wheel support frame 17a Pivot shaft
17b Outer arm 17c Inner arm
17d pin 18 front wheel support rod
18a Mounting hole 20 Hydraulic valve unit
21 Lifting cylinder 21a Piston rod
22 Balance 23 Mounting member
24 Guide shaft 25 Swing arm
26 Connecting rod 27 Rolling cylinder
28 Grounding plate 29 Sensing link mechanism
30 Planting section mission case 30a Input shaft
31 First planting transmission case 32 Second planting transmission case
34 Upper frame 35 畝 Guide roller
36 畝 Guide roller support arm 36aa Mounting member to front wheel support arm
36a 畝 Guide roller support outer arm
36b 畝 Guide roller support inner arm
36c board piece 36d slot
36e Support plate 37 Roller rotating shaft support member
38 Set bolt 39 Mounting piece
39a pin 39b oblong hole
39c Bolt 43, 45 Grip bolt
40 seedling supply cup 41 turntable
42 Central axis 44 Reinforcing plate
44a slot 46 spring
47 links 48 rods
48a U-shaped member in cross section 48b Slot
55 Seedling stand 60 Seedling planting tool
80 Constriction wheel 81 Weight
86 Support frame 87 Swing frame
88 Interlocking mechanism 90 Repression wheel fixing lever
92 Rod 100 Side clutch lever
101 Operation panel 102 Planting lift lever
103 Main clutch lever

Claims (1)

A pair of left and right traveling wheels (3, 3) traveling in the valley of the ridge so as to straddle the ridge of the field;
An installation position changing mechanism (17) capable of changing the left and right positions of the pair of traveling wheels (3, 3) ;
Attaching a pair of left and right ridge guide roller abutting the ridges inclined surfaces (35, 35) to said installation position changing mechanism (17),
The installation position changing mechanism (17)
Left and right traveling wheel support inner arms (17c, 17c) for respectively supporting the left and right traveling wheels (3, 3);
It is provided between the left and right traveling wheel support inner arms (17c, 17c), and the distal end portions of the left and right traveling wheel support inner arms (17c, 17c) are inserted into one end and the other end, respectively. A running wheel support outer arm (17b) fixed to be changeable,
The mounting mechanism of the left and right heel guide rollers (35, 35) to the installation position changing mechanism (17) is:
The left and right roller support inner arms (36b, 36b) that support the left and right saddle guide rollers (35, 35), respectively, and the roller support inner arms (36b, 36b) are inserted into one end and fixed so that the mounting angle can be changed. The left and right heel guides are composed of left and right roller support outer arms (36a, 36a), the other ends of which are extrapolated to the left and right traveling wheel support inner arms (17c, 17c) and fixed so that the mounting angle can be changed. Roller support arms (36, 36);
Roller rotation shaft support members (37, 37) provided between the roller support inner arms (36b, 36b) and the rod guide rollers (35, 35) and supporting the shafts of the rod guide rollers (35, 35); ,
A seedling transplanting machine having pins (39a, 39a) for rotatably joining the roller rotating shaft supporting members (37, 37) to the roller supporting inner arms (36b, 36b) .

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