JP6115752B2 - Seedling planting equipment - Google Patents

Description

  The present invention relates to a seedling transplanter.

  Patent Document 1 discloses a bifurcated finger-picking finger member that scrapes a set amount of a seedling stock from a mat seedling loaded on a seedling table, and after the finger member takes the seedling, the seedling is placed at the seedling planting position. A seedling planting device is disclosed that includes two planting ridges each provided with a fork-shaped push-out member that pushes out the plant into the field.

JP 2007-089515 A

  However, the finger member for seedling only supports the seedling by sandwiching it from both sides, and the culture soil that binds the root of the seedling is fragile, and this culture soil collapses between seedling collection and seedling planting There is a problem that seedlings cannot be held and the seedlings are dropped in the field.

  When seedlings are dropped on the field, the seedlings are washed away by wind and water flow, and a part of the seedlings is lost. In addition, the seedling that has fallen on the field may be planted in a lying posture while being crushed by the pushing operation of the pushing member. In this case, the operator determines that the planting is normally carried out at the beginning of planting. However, the seedlings are often significantly damaged when they are crushed, and after a while the seedlings die off, resulting in a lack of strain.

  Therefore, it is a problem to be solved by the present invention to provide a seedling planting apparatus that can sufficiently hold seedlings even when the soil is fragile.

The present invention has taken the following technical means to solve the above problems.
That is, the first aspect of the present invention, the Naeno table (51) for loading seedlings, seedling planting of Ru with a seedling implantation rod (52) instill in the field taking seedlings from the Naeno table (51) in the apparatus, the said seedling implantation rod (52), and seedling member forked taking sandwiching an share content seedlings (101), out press the seedling taking member (101) is sandwiched took seedlings in the field An extrusion member (102) and an extrusion restricting arm (126) for extruding the pushing member (102) at a predetermined position are provided, and a locking member (104) for restricting the rotational movement of the extrusion restricting arm (126) is provided. In addition, by inserting the locking member (104) from the outside of the seedling planting pot (52), the seedling planting basket (52) can be rotated in the reverse direction. A seedling holding member (103) for holding the seedling together with the member (101) is provided. The one side of the seedling holding member (103) is fixed to the upper side of the planting locus of the seedling collecting member (101), and the other side of the seedling holding member (103) is bifurcated of the seedling collecting member (101). While passing the interval part of the part and positioning it on the lower side of the planting locus,
The seedling planting apparatus characterized in that the other side end of the seedling holding member (103) is positioned on the lower side of the planting locus with respect to the end of the bifurcated portion of the seedling collecting member (101) . It is.

The invention according to claim 2 is characterized in that the seedling holding member (103) is bent in a posture inclined from the branch start portion of the bifurcated portion toward the lower side of the planting locus, and the seedling holding member (103). ) The other side end is bent toward the lower side of the planting locus at an angle smaller than the inclination angle at the branch start portion, and is vertically U-shaped toward the pushing member (102) in the front view. When the extrudate (102a) having an opening is provided and the extruding member (102) moves in the direction of extruding the seedling, the other end of the seedling holding member (103) is the extrudate (102a). The seedling planting apparatus according to claim 1, wherein the seedling planting apparatus is configured to be located on the upper side of the planting locus with respect to the valley portion .

According to a third aspect of the present invention, a vertical U-shaped opening is formed by cutting out the left and right central portions on the front side of the extruded body (102a), and on both the left and right sides of the vertical U-shaped opening. The seedling planting device according to claim 2, wherein left and right extruded side walls (102c) are formed .

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According to the first aspect of the invention, by providing the seedling holding member (103) for holding the seedling with seedling preparative member (101), to press the seedlings seedling taking member (101) and the seedling holding member (103) Therefore, it is possible to prevent the seedling from falling from the seedling collecting member (101) even if the soil for bundling the seedling collapses.

As a result , the occurrence of a missing line is prevented, so that the seedling planting accuracy is improved. In addition, since the damaged seedlings are prevented from withering, the occurrence of missing lines can be suppressed in this respect, and the crop yield can be stabilized.
Then, by providing the seedling holding member (103) through the space between the forked portions of the seedling collecting member (101), the seedling holding member (103) and the seedling collecting member (101) are attached to the lower part of the seedling at three points. Since it can hold | maintain, even if the soil which bundles a seedling collapses, it is prevented that a seedling falls from the seedling collection member (101), and generation | occurrence | production of a stock defect is prevented.
Further, the other end portion of the seedling holding member (103) is located on the lower side of the planting locus from the end portion of the seedling collecting member (101), so that the seedling holding member (103) becomes the seedling member (101). ) And can be prevented from forming excessive holes in the field when planting seedlings, so that the planted seedlings are prevented from falling and the growth of the seedlings is stabilized.
In addition, a locking member (104) for restricting the rotational movement of the extrusion restricting arm (126) is inserted from the outside into the seedling planting basket (52), and the seedling planting basket (52) can be rotated in the reverse direction. With this configuration, when performing operations such as adjusting the angle of the seedling planting pod (52), it is possible to work while rotating the seedling planting jar (52) in the reverse direction. In the case of changing or maintenance, the angle adjustment work or the like of the seedling planting basket (52) becomes easy, and the work efficiency is improved.
In addition, since the locking member (104) is configured to be inserted from the outside of the seedling planting pod (52), it is possible to easily rotate the seedling planting cocoon (52) in the reverse direction, thereby improving work efficiency. To do.

According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the seedling holding member (103) is inclined from the branch start portion of the bifurcated portion toward the lower side of the planting locus. Compared with the case where the seedling collecting member (101) and the seedling holding member (103) are parallel, the vertical distance between the seedling collecting member (101) and the seedling holding member (103) can be increased in the front. The seedling can be easily sandwiched and the seedling holding member (103) is prevented from entering the lower portion of the seedling of the seedling mat and damaging the seedling.
In addition, since the distance between the top and bottom of the seedling collecting member (101) and the seedling holding member (103) is shortened on the lower side of the planting locus, the holding of the seedling is further strengthened .

Further, the other end of the seedling holding member (103) is further bent toward the lower side of the planting locus at an angle smaller than the inclination angle at the branch start portion, so that the seedling can be more easily sandwiched .
In addition, when the extruding member (102) moves in the direction of extruding the seedling, the other end of the seedling holding member (103) is positioned on the upper side of the planting locus with respect to the valley of the extrudate (102a). Thus, the seedling can be reliably pushed out by the extruded body (102a), and the planting accuracy of the seedling is improved .

According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, there are extruded side walls (102c) on both the left and right sides of the vertical U-shaped opening formed in the extruded body (102a). Therefore, when the seedling is held by the seedling collecting member (101) and the seedling holding member (103), the seedling is less likely to come into contact with the front portion of the extruded body (102a), so that the seedling is securely held and the seedling is planted. The attachment accuracy is improved and the growth is stabilized .

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It is a side view of the conventional seedling transplanter. It is a top view of the seedling transplanting machine of FIG. It is a side view of the seedling planting pot periphery concerning the conventional embodiment. It is sectional drawing from the back of the seedling planting ridge and rotary case of FIG. FIG. 4 is a side sectional view of the rotary case of FIG. 3. It is the top view and side view of a seedling planting ridge tip concerning a first embodiment of the present invention. FIG. 7 is a front view and a side view of the seedling planting ridge of FIG. 6. It is the top view and side view of a seedling planting tip end concerning a second embodiment of the present invention. It is sectional drawing from the back of the seedling planting pot concerning 3rd embodiment of this invention. It is the top view and side view of a marker stick | rod periphery concerning 4th embodiment. It is the front view and A arrow directional view of the inter-strain shift lever concerning 5th embodiment.

  Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings. In addition, in FIGS. 1-5, it is called right and left and front and rear, respectively, toward the advancing direction of a seedling transplanter.

  As shown in FIGS. 1 and 2, the conventional seedling transplanting machine transmits a shifting power integrally with the traveling unit of the left and right front wheels 10 and the left and right rear wheels 11 and the engine 20. The transmission vehicle body 2 includes a transmission section such as a transmission case such as a transmission case, a left and right front wheel final case 13 that transmits and supports the left and right front wheels 10, and a left and right rear wheel gear case 18 that transmits and supports the left and right rear wheels 11. 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 the 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 wheel 10, and the rest is transmitted to the rear wheel gear case 18 to drive the rear wheel 11. The left and right front wheel final cases 13 transmit and support the left and right front wheels 10 on the side of the transmission case 12, and the left and right rear wheel gear cases 18 have axles that pivotally mount the left and right rear wheels 11 on the left and right sides of the body. It is provided so as to protrude to the side, and receives right and left shifting power from the transmission case 12.

  By operating the main speed change lever 19, the operator can continuously (steplessly) change the hydraulic continuously variable transmission 23 from the seventh forward speed through the neutral position to the fourth reverse speed, and a sub-speed change lever (not shown). Is operated to change the “road traveling mode” and the “planting operation traveling mode” by a known auxiliary transmission in the gear transmission. 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 are provided on the left and right sides thereof. When the aircraft is advanced with these floats 55 and 56 in contact with the mud surface of the field, the floats 55 and 56 slide while leveling the mud surface, and the seedlings 52,. Planted. Each of the floats 55 and 56 is rotatably attached so that the front end side thereof moves up and down according to the unevenness of the soil surface, and the vertical movement of the front part of the center float 55 is an angle-of-attack control sensor (see FIG. 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 to raise and lower the seedling planting device 4. 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 is a parallel link structure, and is provided with one upper link 40 and a pair of left and right lower links 41. These links 40 and 41 are rotatably attached to a rear-view portal-shaped 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. 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. On the right side of the handle 34, a main transmission lever 19 and a sub transmission lever (not shown) are provided below the main transmission 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, spare seedling platforms 38, 38 on which replenishment seedlings are placed are provided so as to be pivotable between a position protruding laterally from the body and a position accommodated inside. The preliminary seedling mounts 38 and 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 structure and operation | movement of the seedling planting pot 52 are demonstrated using FIGS. 3-5. FIG. 3 is a side view of the periphery of the seedling planting pot 52 according to the conventional embodiment. Among the plurality of seedling planting pots 52, the one located on the left side of the figure is shown as a cross-sectional view and shows a locus P at the tip thereof. 4 shows a cross-sectional view from the rear of the rotary case 110 and the seedling planting pot 52, and FIG. 5 shows a cross-sectional view from the side of the rotary case 110 attached to the planting transmission case 50a.

  A rotary case shaft 111 is rotatably supported at the rear end portion of the planting transmission case 50a. The central portion of the rotary case 110 is fixed to the left and right projecting portions of the shaft so as to rotate integrally. The planting case shafts 119 and 119 are rotatably supported at both ends of the case 110 by the planting rod bearings 121 and so on, and the planting rod cases 120 and 120 are fixed to the both planting case shafts 119 and 119, respectively. Attached. The planting case 120 is provided with a seedling collecting member 101 as a seedling planting body and an extrusion member 102 as a seedling extrusion body. The seedling member 101 has a bifurcated fork shape with a sharp tip formed on the tip side.

  Inside the rotary case 110, a sun gear 112 that is fitted to the outer peripheral portion of the rotary case shaft 111 and is non-rotating integrally with the implantation cage case 120, and planetary gears 113, 113 meshing with the sun gear 112, A gear mechanism including planting gears 114 and 114 meshing with the planetary gear is housed. The sun gear 112 is supported on the rotary case 110 by a sun gear bearing 122. The planetary gear 113 is attached to the planetary gear shaft 115 so as to rotate freely with respect to the rotary case 110. The planting gear 114 is attached to the planting case shaft 119 so as to rotate integrally with the key.

  When the rotary case shaft 111 is driven to rotate, the rotary case 110 rotates in a certain direction, the planting gears 114 and 114 revolve around the sun gear 112, and the planting direction is opposite to the revolution direction during one revolution. The attached gears 114 and 114 rotate once. Thereby, the planting cage cases 120 and 120 provided integrally with the planting gears 114 and 114 move on a predetermined track while maintaining a constant posture. P in FIG. 3 is a tip locus of the seedling taking member 101. The gears 112, 113, and 114 are eccentric gears, and the moving speed of the planting cage case 120 is adjusted to be slow near the seedling picking position and the seedling planting position, and fast when moving between the two positions. ing.

  Further, inside the rotary case 110, a brake cam 116 attached so as to rotate integrally with the planting case shaft 119 with a key, a brake arm 117 in contact with the outer peripheral surface of the brake cam 116, and the brake arm 117 Is provided with a phase shift prevention mechanism including a spring 118 that presses against the braking cam 116. The brake cam 116 has a shape as shown in FIG. 5, and brakes the rotation of the planting gear 114 when the planting cage case 120 is in the seedling extraction position and the seedling planting position, thereby preventing backlash between the gears. It absorbs and works so that seedling separation and seedling planting operations can be performed accurately.

  The extrudate 102a of the seedling extruding member 102 has a vertical U-shape when viewed from the front, with the side close to the seedling extruding member 101, and an extruding rod that is slidably supported by the planting case 120. It is attached to the front end portion of 102b so as to be close to the back surface of the seedling taking member 101, and protrudes toward the front end side of the seedling taking member 101 and retreats to the root side of the seedling taking member 101 by the operation of the push rod 102b. .

  An operation mechanism of the pushing member 102 is accommodated in the planting tub case 120. The extrusion cam 123 is integrally fitted to the inner peripheral portion of the boss portion of the rotary case 110 protruding into the planting pot case 120, and is provided so as to be rotatable with respect to the planting case shaft 119 and the planting pot case 120. ing. A cam arm 124 that is in sliding contact with the outer peripheral surface of the push cam 123 is pivotally supported by an arm shaft 125. Further, an extrusion restricting arm 126 that pivots integrally with the cam arm 124 is pivotally supported on the arm shaft 125, and a tip end portion of the extrusion restricting arm 126 and an end portion on the inside of the case of the push rod 102b are joint members. It is connected through. An extrusion spring 127 is provided so as to urge the extrusion rod 102b toward the seedling member protruding side through the joint member.

  The push cam 123 rotates relative to the planting case shaft 119, and the push restricting arm 126 swings by the action of the cam mechanism including the push cam 123 and the cam arm 124. When the push-out restricting arm 126 is at a position where the push-out spring 127 is compressed, the push body 102a is in a retracted state. When the push restricting arm 126 is rotated from that position and the compression of the push spring 127 is relaxed, the push rod 102b is pushed out by the elastic force of the push spring 127, and the push body 102a protrudes.

  The seedling planting rod 52 operates as follows during planting work. When the rotary case shaft 111 is driven to rotate, the pair of planting pod cases 120 and 120 attached to the rotary case 110 are half a cycle on the same track in which the seedling planting pod 52 draws the tip locus P. It moves with a fixed posture while keeping the interval. At the seedling extraction position, the seedling transplanter 52 passes through the seedling outlet 51a and separates and extracts one seedling on the seedling mounting table 51. At this time, the extruded body 102a is in a retracted state. When the planting cocoon case 120 moves downward and moves to the seedling planting position, the extruded body 102a protrudes, and the seedling member 101 holds the seedling by pushing the soil portion of the seedling held by the seedling collecting member 101 downward. Extrude and plant in the field. Thereafter, the implant cage case 120 moves upward through a track behind the lower side and the extruded body 102a moves backward.

  6 and 7 show the tip of the seedling planting rod 52 provided in the seedling planting device 4 according to the first embodiment of the present invention. 6 shows a state when the seedling pushing member 102 is in the retracted position, FIG. 6 (a) is a plan view, and FIG. 6 (b) is a sectional view from the side. 7 shows a state when the seedling extruding member 102 is in the forward position, FIG. 7 (a) is a front view seen from the direction of the tip for seedling removal, and FIG. 7 (b) is a sectional view from the side. Show. 6 and 7, the seedling member 101 is used as a reference, the top view is a plan view, the side view is a side view, and the front view is a front view. For the left and right and front and rear, the left hand in FIG.

  In the seedling planting pot 52, a seedling collecting member 101 having a bifurcated shape for sandwiching a seedling is disposed, and an extruded body 102a of the pushing member 102 is disposed below the seedling collecting member 101. Then, a seedling holding member 103 that holds the seedling together with the seedling collecting member 101 is provided. In the first embodiment, the seedling holding member 103 is a separate member from the seedling taking member 101, and is formed by bending a rod-shaped raw material to have a shape along the seedling taking member 101. In another embodiment, the seedling collecting member 101 and the seedling holding member 103 may be integrated.

  That is, the seedling holding member 103 is a bar-like body that is positioned below the surface including the two bars of the seedling collecting member 101 that forms a bifurcated shape, and is substantially parallel to the two bars.

  On one side of the rod-shaped seedling holding member 103, a member is curved to create a ring, and a single bolt that fixes the seedling taking member 101 to the planting case 120 is inserted into this ring, On the upper side of the member 101, it is fixed together with the seedling collecting member 101 to be fixed to the planting pod case 120. In addition, the conventional seedling member 101 is fixed with two bolts including another bolt located in front of the current bolt, and the front bolt is used to match the conventional model fixed with the two bolts. It is assumed that the upper side of the hole is avoided.

  The seedling holding member 103 is a bifurcated bifurcated portion, and is bent downwards, for example, about 60 degrees, and is bent upward at an angle smaller than the previous angle, for example, about 45 degrees, around the lower end of the seedling collecting member 101. . With such a configuration, it passes between the forked portions and comes to be positioned below the seedling-taking member 101, and is inclined downward by about 15 degrees from the branch start portion of the forked portion toward the front end. Further, the front end portion 103a of the seedling holding member 103 is bent downward at about 10 degrees smaller than 15 degrees, and the front end portion 103a is inclined at about 25 degrees. In addition, the front end of the seedling holding member 103 is positioned behind the front end of the seedling collecting member 101. By bending the seedling holding member 103 at the bifurcated branch portion, the seedling holding member 103 can be configured to contact the forked portion, and the right and left positions of the seedling holding member 103 can be prevented from shifting.

  The seedling holding member 103 is made of spring steel or the like, and contacts the bottom of a groove provided in the extruded body 102a constituting the extruded member 102 when the extruded member 102 advances. The extruded body 102a has a vertical U-shape opening upward in a front view, and the seedling holding member 103 is in contact with the bottom of the valley and positioned above the bottom of the valley.

  By providing a seedling holding member 103 that holds the seedling together with the seedling collecting member 101 in the seedling transplanting pot 52, the seedling can be pressed by the seedling collecting member 101 and the seedling holding member 103. Even if the soil that bundles the seedlings collapses, the seedlings can be prevented from falling from the seedling collecting member 101.

  The seedling holding member 103 has a bar shape along the seedling taking member 101, and the other end of the bar shape is passed between the forked portions of the seedling taking member 101 and positioned below the seedling taking member 101. The seedling holding member 103 and the seedling collecting member 101 can hold the lower part of the seedling at three points. Thereby, even if the soil for bundling seedlings collapses when the seedlings are taken, the seedlings can be prevented from falling from the seedling collecting member 101, the occurrence of a stock loss is prevented, and the seedling planting accuracy is improved. .

  Further, the seedling holding member 103 has a bar shape along the seedling taking member 101, and the front end of the seedling holding member 103 is positioned rearward of the front end of the seedling taking member 101, so that the seedling holding member 103 becomes the seedling taking member 101. It is possible to prevent the formation of extra holes in the field when planting seedlings. This prevents the planted seedling from falling down and stabilizes the growth of the seedling.

  The seedling holding member 103 is inclined downward from the branch start portion of the bifurcated portion toward the front end, so that compared to the case where the seedling taking member 101 and the seedling holding member 103 are parallel to each other, The distance between the top and bottom of the seedling holding member 103 can be increased, so that the seedling can be easily sandwiched and the seedling holding member 103 is prevented from entering the bottom of the seedling of the seedling mat and damaging the seedling. In addition, the distance between the top and bottom of the seedling collecting member 101 and the seedling holding member 103 is shortened at the rear, and the seedling is more firmly held.

  Further, since the front end portion of the seedling holding member 103 is bent further downward at an angle smaller than the inclination angle at the branch start portion, the seedling can be more easily sandwiched.

  In addition, when the extruding member 102 is pushed forward, the front end of the seedling holding member 103 is more than the valley bottom of the extruding body 102a forming a vertical U-shape opening upward in a front view. By being positioned above, the seedling can be reliably pushed out by the extruded body 102a, and the planting accuracy of the seedling is improved.

  In FIG. 8, the front-end | tip of the seedling planting rod 52 provided in the seedling planting apparatus 4 concerning 2nd embodiment of this invention is shown. 8A is a plan view, FIG. 8B is a sectional view from the side, and FIG. 8C is a bottom view. In FIG. 8 as well, similar to FIGS. Moreover, FIG.8 (c) displays only the extrusion body 102a.

  The extruded body 102a according to the second embodiment forms a vertical U-shape that opens upward in a front view as in the first embodiment. In addition to this, the extruded body 102a according to the second embodiment forms a horizontal U-shape that opens toward the front end in a plan view (bottom view), and the vertical U-shaped left and right extruded side walls 102c, Cut out the upper part of the front end of 102c. By cutting out the upper part of the front end part, the front end of the upper part of the extruded side wall 102c is positioned behind the front end of the extruded body 102a. And it is comprised so that the front end of the seedling holding member 103 may pass through a horizontal U-shaped valley and be positioned below the extruded body 102a.

  The extruded body 102a forms a horizontal U shape that opens toward the front end in a plan view, and the front end of the seedling holding member 103 passes through the trough portion of the horizontal U shape and is below the extruded body 102a. By being positioned, the distance between the upper and lower sides of the seedling collecting member 101 and the seedling holding member 103 can be increased in front. This facilitates the sandwiching of the seedlings and prevents the seedling holding member 103 from entering the lower part of the seedlings of the seedling mat and damaging the seedlings. In addition, since the vertical distance between the seedling collecting member 101 and the seedling holding member 103 is shortened in the rear, the seedling is more firmly held.

  The extruded body 102a forms a vertical U-shape that opens upward in a front view, and the upper portions of the front end portions of the left and right extruded side walls 102c of the vertical U-shape are notched, thereby When holding the seedling with the taking member 101 and the seedling holding member 103, it becomes difficult for the seedling to come into contact with the front portion of the extruded body 102a, and the seedling is securely held. Thereby, the planting accuracy of the seedling is improved and the growth is stabilized.

  In FIG. 9, sectional drawing from the back of the seedling planting pot 52 concerning 3rd embodiment of this invention is shown. When adjusting the attachment angle between the seedling planting pot 52 and the rotary case 110, it is necessary to manually rotate the seedling planting pot 52. At this time, conventionally, the transmission from the planting transmission shaft 26 is cut off, and the seedling planting pot 52 is only manually rotated in the seedling planting direction, and the seedling planting basket 52 cannot be rotated in the reverse direction. . This is because the extrusion restricting arm 126 contacts the non-circular extrusion cam 123. Therefore, in the third embodiment, the rotation of the extrusion restricting arm 126 is arranged on the upper part of the planting basket case 120 of the seedling planting basket 52, specifically, upward in the side view from the axis of the extrusion rod 102b constituting the extrusion member 102. A locking member 104 that restricts the movement is provided, and the locking member 104 can be inserted and removed from the outside of the seedling planting pot 52. The locking member 104 has a pin shape and is provided with a release spring 104a fitted therein, and the locking member 104 does not normally enter the implantation rod case 120 in a normal state. In the third embodiment, the locking member 104 is provided above the axis of the push rod 102b in a side view, but may be provided below.

  The latch member 104 that restricts the rotational movement of the extrusion restricting arm 126 is inserted into the seedling planting pot 52 from the outside so that the seedling planting pot 52 can be rotated in the reverse direction. When performing operations such as adjusting the angle of the reed 52, the work can be performed while rotating the seedling implantation reed 52 in the reverse direction. As a result, when the amount of seedlings is changed or when the angle is adjusted during maintenance, the work efficiency is improved.

  In addition, by adopting a configuration in which the locking member 104 is inserted from the outside of the seedling planting pot 52, it is possible to easily rotate the seedling planting pot 52 in the reverse direction.

  FIG. 10 shows the periphery of a marker bar according to the fourth embodiment. FIG. 10A is a plan view, and FIG. 10B is a side view. The marker bar according to the fourth embodiment is provided with a marker bar horizontal portion 105a along the front-rear direction of the traveling vehicle body 2 as well as the vertical portion. The marker bar horizontal portion 105a is configured to be foldable.

  In the conventional marker bar composed only of the vertical portion, it was possible to match the lateral position of the traveling vehicle body 2 by aligning the center position of the traveling vehicle body 2 with the mark previously drawn by the drawing marker. It is difficult to know the posture of the traveling vehicle body 2 and the planting position may deviate from the initial position when planting is continued. In the present case, the presence of the marker bar horizontal portion 105a allows the operator to know the posture of the traveling vehicle body 2, so that the operator does not deviate from the initial position and can plant seedlings at an accurate position. .

  In FIG. 11, the front view and A arrow view of the stock shift lever 130 concerning 5th embodiment are shown. FIG. 11A shows a front view in which the state where the inter-shift lever 130 is extended is indicated by a solid line, and the contracted state is indicated by a broken line. FIG. 11B is a view from the direction of the arrow A in FIG. The inter-strain shift lever 130 is shown. Since it is necessary to keep the stocks along the traveling direction constant, the configuration depends on the distance traveled by the traveling vehicle body 2 and does not depend on the traveling speed. However, this strain may be changed depending on the type of transplant and the state of the field. In this case, the change is made by changing the stock shift lever 130 protruding from the front cover 32 or the like.

  The inter-stock shift lever 130 according to the fifth embodiment is fixed to the inner rod 131 that rotates about the axis of the lever fulcrum 134, the outer cylinder 132 that is fitted to the inner rod 131, and the outer cylinder 132. An L-shaped supporter 133 that assists in maintaining the posture of the tube 132 is configured. By turning the stock shift lever 130 around the lever fulcrum 134 in the front-rear direction of FIG. 11A, the shift converter located on the right of FIG. 11A is operated to change the stock. When changing between stocks, the stock shift lever 130 is used in an extended state, and when the use is finished, the stock shift lever 130 is in a contracted state so that an operator does not operate it by mistake.

  The inner rod 131 is manufactured by bending a steel rod having a round cross section and welded to the lever fulcrum 134. The outer cylinder 132 has a cylindrical shape having a circular hollow hole that can be inserted into the inner rod 131, and has a configuration in which an upper end portion thereof is bent toward the center. Since the outer cylinder 132 is fitted into the inner rod 131, the rigidity of the entire lever can be ensured even when the inter-stock shift lever 130 is extended. Moreover, the downward movement of the outer cylinder 132 can be restricted by the bent upper end.

  A semi-cylindrical L-shaped supporter 133 whose inner circumference is matched with the outer circumference of the outer cylinder 132 is fixed to the outer cylinder 132 by welding. The L-shaped supporter 133 employs a configuration that is bent toward the inside on the side close to the lever fulcrum 134, and the bent portion and a portion that is fixed to the outer cylinder 132 constitute an L-shape. The bent portion is provided with a hole into which the inner rod 131 can be inserted, and is fitted to the inner rod 131. By providing the L-shaped supporter 133, even when the inter-stock shift lever 130 is extended, the backlash between the outer cylinder 132 and the inner rod 131 can be reduced, and the L-shaped supporter 133 is in contact with the lever fulcrum 134. The downward movement of the outer cylinder 132 can be restricted.

  The inner rod 131 is provided with a positioning pin 136 that restricts the downward movement of the outer cylinder 132 in a direction perpendicular to the axis of the inner rod 131. A storage spring 135 to be fitted to the inner rod 131 is provided between the positioning pin 136 and the bent portion of the L-shaped supporter 133. Further, the L-shaped supporter 133 is provided with an L-shaped notch 137 for engaging with the positioning pin 136.

  By providing the storage spring 135, the extended stock shift lever 130 can be automatically contracted. Further, by engaging the positioning pin 136 with the L-shaped notch 137 provided on the L-shaped supporter 133, the inter-stock shift lever 130 can be held in an extended state. The L-shaped notch 137 can be provided on both sides of the L-shaped supporter 133. In this case, the outer cylinder 132 can be engaged regardless of which direction it is rotated.

DESCRIPTION OF SYMBOLS 1 Seedling transplanter 4 Seedling planting device 51 Seedling mounting stand 52 Seedling transplanting rod 101 Seedling member 102a Extruded body 102c Extruded side wall 103 Seedling holding member 104 Locking member 126

Claims (3)

And Naeno table (51) for loading seedlings in seedling planting apparatus Ru comprising a seedling implantation rod (52) instill in the field taking seedlings from the Naeno table (51),
The said seedling implantation rod (52), and seedling member forked taking sandwiching an share content seedlings (101), said seedling member (101) extruded member begins to push the scissors took seedlings in the field ( 102) and an extrusion restricting arm (126) for pushing out the pushing member (102) at a predetermined position, and a locking member (104) for restricting the rotational movement of the pushing restricting arm (126),
By inserting the locking member (104) from the outside of the seedling planting basket (52), the seedling planting basket (52) can be rotated in the reverse direction,
A seedling holding member (103) for holding the seedling together with the seedling collecting member (101) is provided ,
One side of the seedling holding member (103) is fixed to the upper side of the planting locus of the seedling collecting member (101), and the other side of the seedling holding member (103) is a bifurcated portion of the seedling collecting member (101) And let it pass through the gap part of the
The seedling planting apparatus characterized in that the other side end of the seedling holding member (103) is positioned on the lower side of the planting locus with respect to the end of the bifurcated portion of the seedling collecting member (101) . . The seedling holding member (103) bends in a posture inclined from the branch start portion of the bifurcated portion toward the lower side of the planting locus, and the other end of the seedling holding member (103) is the branch. Bend toward the lower side of the planting locus at an angle smaller than the tilt angle at the start,
The extruded member (102) is provided with an extruded body (102a) in which a vertically U-shaped opening directed upward in a front view is formed,
When the pushing member (102) moves in the pushing direction of the seedling, the other end portion of the seedling holding member (103) is located on the upper side of the planting locus with respect to the valley portion of the pushing body (102a). seedling planting apparatus according to claim 1, characterized in that the configuration and the. A vertical U-shaped opening is formed by notching the left and right central portions on the front side of the extruded body (102a), and left and right extruded side walls (102c) are formed on both left and right sides of the vertical U-shaped opening. The seedling planting device according to claim 2, wherein:

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