JP6536825B2 - Work vehicle - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a seedling transplanting machine equipped with a leveling roller on the front side of an airframe for planting and traveling while leveling.

The seedling transplanting machine shown in the prior patent document 1 is provided with a leveling roller for changing the vertical height of the traveling vehicle body by detecting the height of the rattan by changing the vertical position while leveling the rattan scene on the front side of the machine body.
By changing the vertical height of the traveling vehicle body according to the change in the height of the bush by the above-mentioned leveling roller, the planting depth of the seedling can be matched to the height of the bush, so the planting depth of the seedling Is stable, and the growth of crops is stabilized.
Moreover, the seedling transplanting machine shown to prior patent document 2 has provided the spare seedling stand which loads a spare seedling tray in the left-right center part of the body. As a result, every time the seedling is removed from the seedling planting device, there is no need to carry the seedling tray to the machine body, thereby improving the working efficiency and reducing the labor of the worker.

JP, 2011-97862, A JP, 2009-261278, A

However, since the seedling transplanting machine shown in the prior patent document 1 detects a change in the height of the bale by the leveling roller, the unevenness of the bale is not sufficiently leveled, and the planting depth of the seedling is not an appropriate depth. There is a problem that the growth of seedlings is adversely affected.
Moreover, since the loading space of the spare seedling seedling is limited in the seedling transplanting machine shown in the prior patent document 2, depending on the size of the field, the work of replenishing the seedling tray is frequently required, and the working efficiency is lowered. The problem of increased labor of workers arises.

  An object of the present invention is to provide a seedling transplanting machine capable of securing the planting depth of the seedling by effectively leveling the unevenness of the ridge and increasing the loading capacity of the seedling tray.

The present invention [1] comprises a seedling planting device (P) for planting seedlings in a seedling tray in a field, and a leveling device (4) for leveling irregularities on a weir surface on which the seedling planting device (P) ) And the seedling transplanting machine (4) configured to be capable of running in the field, comprising a spare seedling tray (T) for loading a spare seedling tray to be replenished to the seedling planting device (P); A leveling roller (11) for leveling the unevenness of the heel surface at the front position of the machine body, and a rotating arm (12) pivotally supported on the rotating shaft (13) so as to change the support height of the leveling roller (11). A fixing plate (14) for fixing the rotating arm (12) is provided, and the fixing and releasing of the fixing plate (14) can be switched by the rotating shaft (13).

In the invention [2] , in the invention according to the invention [1] , a plurality of selection holes (12e) for switching the support height are formed in the pivoting arm (12), and the connection hole is formed in the fixed plate (14). (14a) is formed, and the pivot shaft (13) is formed on the grips (13c, 13d) for operation formed on both side ends thereof and any one of the selection hole (12e) and the connection hole (14a) While having a connecting projection (13a) formed so as to be insertable and configured to be slidable in the vehicle width direction, providing an urging member (13b) for urging the connecting projection (13a) to the connecting side It features.

The present invention [3] is the invention according to the present invention [1] or the present invention [2] , wherein the left and right roller arms pivotally support the leveling roller (11) at the tip end of the pivoting arm (12) (11a, 11a) and the left and right roller suspension stays (16b, 16b) for suspending and supporting the left and right roller arms (11a, 11a) are supported to raise and support the pivoting arm (12) There is provided a link arm (15) for controlling the posture of the roller suspension stay (16b, 16b) so as to movably move the leveling roller (11) backward, and bias the roller arm (11a, 11a) downward. A spring (17a) is provided on the roller suspension stay (16b, 16b).

Relating to the invention according to [3] above [1] of the present invention, the first related invention, prior Symbol preliminary seedling table (T) is a rectangular frame-shaped seedling frame provided on side edges of the vehicle body A frame (21) and a seedling receiving plate (22) for receiving the seedling tray in the seedling frame (21), and the seedling tray via the connecting member (23) on the outer side of the seedling frame (21) It is characterized in that an extended seedling platform (T1) for loading is provided.

In the second related invention, in the first related invention, the seedling frame frame (21) is formed higher than the receiving surface (22a) of the seedling receiving plate (22) at the outer end of the reserve seedling (T). To form a lateral seedling receiving portion (21a), and the connection member (23) is integrally provided with the lower attachment member (23a) provided at the inner end of the extended seedling stand (T1), and the lower portion The upper attachment member (23c) integrally fixed by the fastening member (23b) with the seedling frame (21) interposed on the attachment member (23a), and the upper attachment member (23c) and the lower attachment member (23a) And a protective member (23d) for securing a clamping limit between the two.

In a third related invention according to the second related invention, the extended seedling tray (T1) includes a rectangular frame-shaped extended seedling frame (24) and a seedling tray on the extended seedling frame (24). The upper end portion of the fastening member (23b) is formed below the height of the receiving surface (22a) of the seedling receiving plate (22) of the spare seedling stand (T). It is characterized by

The fourth related invention is characterized in that in the third related invention, the shape of the extended seedling frame (24) is the same as the shape of the seedling frame (21).

In a fifth related invention according to the fourth related invention, a pivoting support (26) is provided between the extended seedling bed (T1) and the lower attachment member (23a), and the extended seedling bed ( It is characterized in that T1) is pivotally supported so that it can be flipped up to the traveling vehicle side.

According to the present invention [1], by means of the leveling device (4) provided on the front side of the traveling vehicle body, since the leveling roller (11) can level the unevenness of the weir surface and plant the seedlings, the planting depth of the seedlings Is stable and the growth of seedlings is good. Further, since the pivoting arm (12) can switch the support height of the leveling roller (11) by releasing the connection of the fixed plate (14) by the pivot shaft (13), the number of parts can be reduced. While reduction is achieved, weight reduction is achieved.

According to the present invention [2] , in addition to the effects of the present invention [1] , the connection protrusions (13a) are connected to the plurality of selection holes (12e) of the pivot arm (12) and the connection holes (14a) of the fixed plate (14). By inserting and connecting the rotating arm (12) to the selected position, and by providing grips (13c, 13d) on both the left and right sides of the rotating shaft (13), the operator can operate it. Since it is possible to push and pull the pivot shaft (13) to switch between connection and release of the pivot arm (12) and the fixed plate (14) on either the left or right side of the machine body, extra movement is not necessary, It is possible to improve the efficiency and reduce the labor of the workers.
Further, by biasing the pivot shaft (13) to the connecting side by the biasing member (13b), it is possible to prevent the connection state from being released by the load at the time of work, so the support height of the leveling device changes. There is no problem, and the unevenness of the eyebrow scene can be evenly leveled.

According to the invention [3] , in addition to the effect of the invention according to the invention [1] or the invention [2] , the roller suspension stay (16b, 16b) is constituted by the pivot arm (12) and the link arm (15). When configuring the unequal four-side link so that posture control is possible and rotating the leveling roller (11) to the traveling vehicle side during storage, the link arm (15) and the roller suspension stay (16b, 16b) overlap in a side view The front projection amount of the leveling device (4) can be suppressed so that the roller arms (11a, 11a) are positioned closer to the traveling vehicle body than the front end portion of the leveling roller (11).

In addition to the effects of the inventions [1] to [3] , according to the first related invention, the connecting member (23) is provided on the outer side of the rectangular frame-shaped seedling frame (21) provided at the side edge of the machine body. Since the loading capacity of the seedling tray can be increased by providing the extended seedling stand (T1) through the above, the time during which the work is interrupted by the replenishment work of the seedling tray can be suppressed, and the working efficiency can be improved. In addition, since the number of times the worker goes to pick up the seedling tray can be reduced, the labor of the worker is reduced.

According to the second related invention, in addition to the effects of the first related invention, the lateral seedling receiving portion is mounted by attaching the extended seedling (T1) to the lower part of the seedling frame frame (21) of the spare seedling (T). Since interference with (21a) can be prevented, it is prevented that the loading range of the seedling tray of a spare seedling stand (T) is obstruct | occluded.
In addition, by providing the protection member (23d) between the upper attachment member (23c) and the lower attachment member (23a), the fastening frame (21) is deformed by excessively tightening the fastening member (23b). Since it can prevent, it is prevented that the loading posture of a seedling tray is disturbed, and a fall of a seedling tray is prevented.

According to the third related invention, in addition to the effects of the second related invention, the upper end portion of the fastening member (23b) is equal to or less than the height of the receiving surface (22a) of the seedling receiving plate (22) of the spare seedling stand (T). By forming, it is prevented that the fastening member (23b) is caught on the seedling tray, it is difficult to take the seedling tray and the working efficiency is reduced, and the seedling tray is prevented from being damaged and being unusable for planting work Be done.

According to the fourth related invention, in addition to the effects of the third related invention, the extended seedling frame (24) has the same shape as the seedling frame (21), so that the side of the extended seedling frame (24) Since the extended seedling stand (T1) can be attached to one side, the number of the extended seedling stand (T1) can be changed according to the number of the seedling trays used to reduce the number of the replenishment work of the seedling trays. it can.

According to the fifth related invention, in addition to the effects of the fourth related invention, the extended seedling bed (T1) is pivotally supported on the lower mounting member (23a) via the rotation support portion (26) and bounced on the traveling vehicle side Since it is not necessary to remove the extended seedling bed (T1) at the time of transportation or storage by being able to be raised, the working efficiency is improved and the labor of the operator is reduced.

Main part perspective view of the front of the machine Side view of leveling device Deployment front view of the leveling device Single side view of the pivoting arm Side view of main part of control link Side view of the leveling operation (a) and storage (b) of the leveling roller An exploded perspective view (a) and an assembled front view (b) of the spare seedling stand Principal part enlarged sectional view of extended seedling stand An exploded perspective view of the mounting structure of the extended seedling stand Action diagram of front wheel slide

  An embodiment specifically configured based on the above technical concept will be described below with reference to the drawings. In the description, front, rear, left and right are referred to with reference to the forward direction F of the working machine.

  The seedling transplanting machine 1 comprises a seedling planting device 2 for planting the seedling stock of the seedling tray in the field, and a spare seedling stand 3 for loading a spare seedling tray, and is configured to be field-travelable. As the principal part perspective view is shown in FIG. 1, the leveling apparatus 4 which levels the unevenness | corrugation of a weir is provided.

(Training device)
As shown in FIG. 2 and FIG. 3 in order of the side view and the developed front view of the ground leveling device 4, the ground leveling roller 11 is extended and supported by the pivoting arm 12 at the front of the machine, and the base end of the pivoting arm 12 The portion is pivotally supported by the pivot shaft 13, and the projecting height of the pivot arm 12 can be switched by the fixed plate 14.

  In addition, the leveling roller 11 is supported at the tip of the pivoting arm 12 via the left and right roller arms 11a and 11a, and then coupled with the link arm 15 provided in the vicinity of the pivoting arm 12 16b and 16b are provided, and the left and right roller arms 11a and 11a can be suspended and controlled via the action members 17 and 17, respectively.

(Pivot arm)
In detail, as shown in FIG. 4 of the single side view of the pivoting arm 12, the left and right arm members 12b and 12b are integrally disposed on both sides of the central plate 12c, and are integrally formed on the proximal end thereof. A plurality of selection holes 12e of circular arc arrangement are formed around the rotation shaft 13 in the porous plate 12d.

  The pivot shaft 13 integrally includes a connecting pin 13a which can be inserted through the selection holes 12e of the perforated plate 12d, and is slidably supported in the axial direction, and a spring 13b is provided to insert the connection pin 13a into the selection hole 12e. In order to urge to be able to be held and to release the insertion connection of the connection pin 13a, a pull operation grip 13c is provided at one end and a press operation grip 13d is provided at the other end.

  The fixed plate 14 has a guide hole 14a through which the connection pin 13a is inserted and held, and the rotation angle position of the porous plate 12d is configured to be selectable via the connection pin 13a supported by the guide hole 14a.

(Link configuration)
The link arm 15 pivotally supports the base end fulcrum 15a in the vicinity of the pivot shaft 13, and provides the control link 16 between the tip end fulcrum 15b and the roller arm fulcrum 12a to configure an unequal four-sided link. As shown in FIG. 5, the control link 16 integrally configures a support shaft 16 a pivotally supported by a roller arm fulcrum 12 a and left and right suspension stays 16 b and 16 b as shown in FIG. Depending on the support height, the roller arms 11a and 11a are suspended so as to be position-controllable via the left and right acting members 17 and 17, and springs 17a and 17a are provided to urge downward, thereby resiliently grounding the leveling roller 11. Configure as possible. The upper ends of the springs 17a and 17a are connected to the left and right suspension stays 16b and 16b, and the lower ends are connected to attachment holes 11b and 11b formed in the left and right roller arms 11a and 11a.

  As shown in FIG. 6A, the ground leveling device 4 configured as described above is suspended by the link arm 15 when the rotary arm 12 is fixed in the lowered position by the operation of the rotary shaft 13 as shown in FIG. Since the lower stays 16b and 16b are controlled to rotate downward, the biasing force of the springs 17a and 17a acting on the roller arms 11a and 11a elastically grounds the leveling roller 11 to the heel surface, and the heel surface is leveled can do.

  Further, as shown in FIG. 6B when the side view of the leveling roller 11 is stored, the suspension stays 16b and 16b are pivoted upward by the link arm 15 when the pivoting arm 12 is fixed at the ascending position. Because of this, the roller arms 11a and 11a rotate backward and the leveling roller 11 is retracted and held at the storage position.

  Thus, the pivoting arm 12 is coupled and fixed to the fixed plate 14 at the selection position of the selection holes 12e by the coupling pin 13a by the operation of the pivoting shaft 13 to support the leveling roller 11 in an extended manner and also coupled and fixed. To change the support height of the leveling roller 11.

  Therefore, no special switching parts are required, the number of parts can be reduced, and the weight can be reduced. Further, by providing the leveling device 4 on the front side of the traveling vehicle body, it is possible to plant the seedlings after leveling the unevenness on the brow surface, so that the planting depth of the seedlings is stable and the growth of the seedlings becomes good.

In addition, when adjusting the height of the leveling roller 11, grips 13c,
By providing 13 d and making it possible to operate, the operator can push and pull the pivot shaft 13 regardless of which side of the machine it is, thereby switching the connection and release of the pivot arm 12 and the fixed plate 14. This eliminates the need for extra movement, thereby improving the work efficiency and reducing the labor of the worker.

  Further, by biasing the rotating shaft 13 toward the connection side by the biasing member 13b, it is possible to prevent the unexpected disconnection due to the load at the time of work and to maintain the support height of the leveling roller 11 constant. It is possible to even out the unevenness of

(Spare seedling stand)
Next, the spare seedling nursery T disposed at the side edge portion of the traveling vehicle body is a rectangular frame having a reinforcing member in the front-rear direction, as shown in the exploded perspective view (a) and the assembled front view (b) in FIG. The seedling frame frame 21 and the seedling receiving plate 22 receiving the seedling tray in the seedling frame 21 are provided, and the extended seedling tray T1 for loading seedling trays on the outer side of the seedling frame 21 via the connecting member 23 Provide

  On the left and right sides of the seedling frame 21 (inside the machine), a pair of rotating stays 21b and 21b for folding and rotatably supporting the spare seedling stand T is provided, and the spare seedling stand T is located outside the machine body It is possible to switch between the position and the storage state in which the spare seedling stand T is located on the traveling vehicle body.

  In addition, the lateral seedling receiving portion 21a on the left and right other side (outside the machine body) of the seedling frame 21 is provided with a regulating pin 21c projecting toward the inside of the body, and the seedling receiving plate 22 supporting the bottom of the seedling tray. The movement of the loaded seedling tray is restricted by the restriction pin 21c. In the seedling tray, pot portions (see FIG. 8) for receiving a plurality of seedlings are formed, and on the back surface, space portions are formed between the front and rear and the left and right of the pot portions. The movement of the seedling tray is restricted by inserting the control pin 21c into the space in the left-right direction, and the seedling tray is prevented from falling due to the vibration of the machine body or the change of the posture.

  As a result, the work of picking up the seedling tray is not necessary, the working efficiency is improved, the falling of the seedlings from the seedling tray is prevented, and the failure to cope with the planting of the seedlings by the seedling planting device P is prevented. Ru.

  Thus, by providing the extended seedling tray T1 stably via the connecting members 23 and 23 at two places before and after the outer side of the rectangular frame-shaped seedling frame 21 provided at the side edge of the machine body, Since the loading capacity can be increased, field work can be efficiently advanced.

  At the outer end of the spare seedling stand T, the seedling frame frame 21 protrudes higher than the receiving surface 22a of the seedling receiving plate 22 receiving the tray bottom to form a lateral seedling receiving portion 21a with a tray stopper, and the connecting member 23 And lower mounting members 23a and 23a integrally provided at the inner end of the extended seedling stand T1, and upper mounting members 23c integrally fixed by fastening members 23b on the respective lower mounting members 23a with the seedling frame 21 interposed therebetween. A protective member 23d for securing a tightening limit between the upper mounting member 23c and the lower mounting member 23a.

  Thus, by mounting the extended seedling stand T1 on the lower part of the seedling frame frame 21 of the spare seedling stand T, the loading efficiency of the seedling tray of the spare seedling stand T is secured without interference with the lateral seedling receiving part 21a. can do.

  Further, by sandwiching the seedling frame 21 between the upper attachment member 23c and the lower attachment member 23a, the seedling frame 21 can be integrally fixed by the fastening member 23b without requiring special processing of the seedling frame 21 having the basic configuration. Furthermore, by providing the protective member 23d between the upper attachment member 23c and the lower attachment member 23a, the appropriate fastening operation of the fastening member 23b becomes possible.

  The extended seedling stand T1 is configured by a rectangular frame-shaped extended seedling frame 24 and an auxiliary seedling receiving plate 25 that receives the seedling tray to the extended seedling frame 24 as shown in FIG. And by forming the upper end portion of the fastening member 23b at a height equal to or less than the height of the receiving surface 22a of the seedling receiving plate 22 of the spare seedling stand T, the seeding tray can be stably inserted and removed without the fastening member 23b being caught by the seedling tray. can do.

  By making the shape of the extended seedling frame 24 the same as the shape of the seedling frame 21, the extended seedling frame T1 can be further attached to the side of the extended seedling frame 24, so the number of seedling trays used At the same time, the number of extended seedling trays T1 can be changed to reduce the number of replenishment operations of the seedling tray.

  As shown in FIG. 9, the extended seedling stand T1 is provided with a turning support 26 between the inner end and the lower attachment member 23a, and travels the extended seedling bed T1 as shown in FIG. By pivotally supporting the vehicle body side so as to be able to flip up, it is possible to quickly shift by the opening and closing operation of the extended seedling stand T1 at the time of transportation and storage.

  An auxiliary regulation pin that contacts the back side of the seedling tray placed on the auxiliary seedling receiving plate 25 at the outer end of the extended seedling frame 24 and restricts the movement of the seedling tray, similarly to the regulation pin 21c. 24a is provided to project toward the inside of the machine. Since the movement of the seedling tray is restricted by the auxiliary regulating pin 24a, the seedling tray is prevented from falling due to the vibration of the machine body and the change of the posture.

  As a result, the work of picking up the seedling tray is not necessary, the working efficiency is improved, the falling of the seedlings from the seedling tray is prevented, and the failure to cope with the planting of the seedlings by the seedling planting device P is prevented. Ru.

(Front wheel slide mechanism)
Next, as shown in FIG. 10, which is an operation view of the front wheel slide portion 31, the hexagonal tube 32 of the slide base has a two-stage pinning configuration, and is assembled on the short side and the long side of the tread as necessary. Thus, it is possible to cope with the planting width exceeding the airframe configuration width.

The hexagonal tube 32 of the base can be used as a guide during stepless adjustment by cutting a groove (for example, 25 mm unit) corresponding to the inter-row. The tread adjustment range in the illustrated example is 230 to 630 mm on the LH side and 430 to 930 mm on the RH side.
In the case of double row planting, by constructing the LH side short and the RH side long, it is possible to reciprocate without changing the tread.

The slide base is configured to align with the end face of the shaft when assembled on the inside, and the right side is configured in the range to the tire outer surface.
By providing a reinforcing hub 33 that receives a load at an intermediate position of the shaft portion on the long side (RH) of the front wheel slide, the indication of the inner limit point can also be used.

  The front wheel arm 34 holding the front wheel 36 is configured such that the front wheel 36 can be mounted from either the left or right side of the front wheel arm 34. The base of the front wheel arm 34 is detachably mounted to the slide base via bolts 35. The front wheel 36 can be attached to the slide base by removing the bolts 35..., Removing the front wheel arm 34, reversing the front wheel arm 34 by 180 degrees, and inserting the axle shaft 36 a into the front wheel arm 34. It is possible to switch between a mode in which the front wheel 36 is on the inner side of the front wheel arm 34 and a mode in which the front wheel 36 is on the outer side of the front wheel arm 34.

  With the above configuration, the position of the front wheel 36 in the lateral direction of the machine body can be changed by changing the mounting position of the slide base or changing the mounting direction of the front wheel arm 34 to adjust the left and right front wheels 36, 36 more finely. Since it is possible, the front wheels 36, 36 are disposed at appropriate positions with respect to the number of planting strips of the seedlings and the size of the seedlings, and the traveling posture and the planting posture of the seedlings become stable.

  In addition, since it is possible to prevent the front wheels 36 from coming too close to the position where the seedlings are planned to be planted, it is possible to prevent the scene of the rattling from being disturbed and disturbing the planting depth and planting posture of the plants, and the growth of the plants is stabilized.

(Technical points)
The technical points of the above-mentioned seedling transplanting machine are summarized as follows.
The ground leveling device 4 comprises a ground leveling roller 11 for leveling the unevenness of the heel surface at the front part position of the machine body, a pivoting arm 12 pivotally supported by the pivoting shaft 13 so as to change the support height of the leveling roller 11, The leveling device 11 provided on the front side of the traveling vehicle body includes the fixing plate 14 for fixing the moving arm 12 and the fixing and releasing of the fixing plate 14 can be switched by the pivot shaft 13. Since it is possible to plant the seedlings after leveling the unevenness of the cocoon surface, the planting depth of the seedlings is stable and the growth of the seedlings becomes good, and the pivoting arm 12 connects the fixed plate 14. Since the support height of the leveling roller 11 can be switched by releasing the rotation shaft 13, the number of parts can be reduced and the weight can be reduced.

In addition, a plurality of selection holes 12e for switching the support height is formed in the pivoting arm 12, a connecting hole 14a is formed in the fixed plate 14, and the pivoting shaft 13 is an operating grip 13c formed on both sides thereof. 13d, a connection protrusion 13a formed to be insertable into one of the selection holes 12e and the connection hole 14a and configured to be slidable in the vehicle width direction, and then biasing the connection protrusion 13a to the connection side By providing the biasing member 13b, the connection protrusion 13a is inserted into and connected to the plurality of selection holes 12e of the rotation arm 12 and the connection hole 14a of the fixed plate 14, whereby the rotation arm 12 is positioned at the selection position. By providing the grips 13c and 13d on the left and right sides of the moving shaft 13, the rotating shaft 13 is pushed and pulled regardless of whether the operator is on the left or right side of the machine to connect the rotating arm 12 and the fixed plate 14 It is possible to switch the removal, excess movement is not required, reduction of labor improved and worker working efficiency can be improved.
Further, by biasing the pivot shaft 13 toward the connection side by the biasing member 13b, it is possible to prevent the connection state from being released by the load at the time of operation, so the support height of the leveling device 4 does not change. , The unevenness of the eyebrow scene can be leveled with certainty.

  The left and right roller arms 11a and 11a for pivotally supporting the leveling roller 11 and the left and right roller suspension stays 16b and 16b for suspending and supporting the left and right roller arms 11a and 11a at the tip end of the pivoting arm 12 And a link arm 15 for attitude control of the roller suspension stays 16b and 16b so that the leveling roller 11 can be moved backward as the lift arm 12 is lifted and supported, and the roller arms 11a and 11a are attached downward. By providing the springs 17a and 17a for biasing on the roller suspension stays 16b and 16b, an irregular four-sided link capable of controlling the roller suspension stays 16b and 16b by the rotating arm 12 and the link arm 15 is formed. At this time, when the leveling roller 11 is turned to the traveling vehicle side, the link arm 15 and the roller suspension stays 16b and 16b are viewed in a side view. With each other becomes, can roller arm 11a, 11a thereof is positioned on the vehicle body side from the front end of the leveling rollers 11, keep the front protrusion amount of ground leveling device 4.

  In addition, the spare seedling stand T is constituted by a rectangular frame-shaped seedling frame frame 21 provided at the side edge of the traveling vehicle body, and a seedling receiving plate 22 receiving the seedling tray to the seedling frame frame 21. Since the loading capacity of the seedling tray can be increased by providing the extended seedling tray T1 for loading the seedling tray via the connecting member 23 on the outside of the case, the time for which the work is interrupted by the replenishment work of the seedling tray is suppressed. Work efficiency is improved. In addition, since the number of times the worker goes to pick up the seedling tray can be reduced, the labor of the worker is reduced.

Further, at the outer end of the spare seedling stand T, the seedling frame frame 21 is protruded higher than the receiving surface 22a of the seedling receiving plate 22 to form the lateral seedling receiving portion 21a, and the connecting member 23 is the inside of the extended seedling stand T1. A lower mounting member 23a integrally provided at the end, an upper mounting member 23c integrally fixed by the fastening member 23b with the seedling frame 21 interposed therebetween on the lower mounting member 23a, and the upper mounting member 23c and the lower mounting member The extended seedling stand T1 is mounted on the lower part of the seedling frame frame 21 of the spare seedling stand T by providing the protection member 23d for securing the tightening limit between 23a, and the interference with the side seedling receiving part 21a As a result, it is possible to prevent the loading range of the seedling trays of the spare seedling stand T from being blocked.
Further, the protective member 23d provided between the upper attachment member 23c and the lower attachment member 23a can prevent the seedling frame 21 from being deformed by excessively tightening the fastening member 23b, so that the loading posture of the seedling tray is disturbed. Is prevented and the seedling tray is prevented from falling.

  Further, the extended seedling stand T1 is constituted by a rectangular frame-shaped extended seedling frame 24 and an auxiliary seedling receiving plate 25 receiving the seedling tray to the extended seedling frame 24 and the upper end portion of the fastening member 23b is a spare seedling stand By forming it below the height of the receiving surface 22a of the seedling receiving plate 22 of T, it is prevented that the fastening member 23b is hooked on a seedling tray, it becomes difficult to take a seedling tray and work efficiency falls, and a seedling tray It is prevented that it is damaged and can not be used for planting work.

  Further, by making the shape of the extended seedling frame 24 the same as the shape of the seedling frame 21, the extended seedling tray T1 can be further attached to the side of the extended seedling frame 24. By changing the number of the extended seedling tray T1 according to the number, it is possible to reduce the number of replenishment operations of the seedling tray.

  Also, by providing a pivoting support 26 between the extended seedling stand T1 and the lower mounting member 23a and pivotally supporting the extended seedling stand T1 so as to be able to bounce up to the traveling vehicle body side, the extended seedling stand during transportation or storage. Since the work of removing T1 is not necessary, the working efficiency is improved and the labor of the operator is reduced.

DESCRIPTION OF SYMBOLS 1 seedling transplanting machine 4 leveling apparatus 11 leveling roller 11a roller arm 12 rotation arm 12e selection hole 13 rotation axis 13a connection protrusion 13b biasing member 13c grip 13d grip 14 fixing plate 14a connection hole 15 link arm 16b suspension stay 17a spring P Seedling planting device T Spare seedling stand

Claims (2)

A seedling planting device (P) for planting seedlings in a seedling tray in a field, a leveling device (4) for leveling irregularities on a weir surface on which the seedling planting device (P) plants seedlings, and the seedling planting In the seedling transplanting machine configured to be able to run in the field, provided with a spare seedling tray (T) for loading a spare seedling tray to be replenished to the device (P).
The leveling device (4) comprises a leveling roller (11) for leveling the unevenness of the heel surface at the front portion of the machine body, and a support shaft of the leveling roller (11) pivotally supported on the rotation shaft (13). A rotating arm (12) and a fixing plate (14) for fixing the rotating arm (12), and the fixing and releasing of the fixing plate (14) can be switched by the rotating shaft (13) Characterized by being configured , and
The spare seedling stand (T) includes a rectangular frame-shaped seedling frame (21) provided at the side edge of the traveling vehicle body and a seedling receiving plate (22) receiving the seedling tray on the seedling frame (21). An extended seedling tray (T1) for loading seedling trays is provided on the outer side of the seedling frame frame (21) via a connecting member (23), and
At the outer end of the spare seedling stand (T), the seedling frame frame (21) is protruded higher than the receiving surface (22a) of the seedling receiving plate (22) to form a lateral seedling receiving portion (21a) The connection member (23) includes a lower mounting member (23a) integrally provided at an inner end of the extended seedling bed (T1), and the seedling frame (21) on the lower mounting member (23a) An upper mounting member (23c) sandwiching and integrally fixing by a fastening member (23b), and a protective member (23d) securing a tightening limit between the upper mounting member (23c) and the lower mounting member (23a) And that,
The extended seedling bed (T1) is constituted by a rectangular frame-shaped extended seedling frame (24) and an auxiliary seedling receiving plate (25) which receives the seedling tray to the extended seedling frame frame (24), and the fastening member A seedling transplanting machine characterized in that the upper end portion of (23b) is formed at a height equal to or less than the height of the receiving surface (22a) of the seedling receiving plate (22) of the spare seedling stand (T) . A seedling planting device (P) for planting seedlings in a seedling tray in a field, a leveling device (4) for leveling irregularities on a weir surface on which the seedling planting device (P) plants seedlings, and the seedling planting In the seedling transplanting machine configured to be able to run in the field, provided with a spare seedling tray (T) for loading a spare seedling tray to be replenished to the device (P).
The leveling device (4) comprises a leveling roller (11) for leveling the unevenness of the heel surface at the front portion of the machine body, and a support shaft of the leveling roller (11) pivotally supported on the rotation shaft (13). A rotating arm (12) and a fixing plate (14) for fixing the rotating arm (12), and the fixing and releasing of the fixing plate (14) can be switched by the rotating shaft (13) Characterized by being configured, and
The spare seedling stand (T) includes a rectangular frame-shaped seedling frame (21) provided at the side edge of the traveling vehicle body and a seedling receiving plate (22) receiving the seedling tray on the seedling frame (21). An extended seedling tray (T1) for loading seedling trays is provided on the outer side of the seedling frame frame (21) via a connecting member (23), and
At the outer end of the spare seedling stand (T), the seedling frame frame (21) is protruded higher than the receiving surface (22a) of the seedling receiving plate (22) to form a lateral seedling receiving portion (21a) The connection member (23) includes a lower mounting member (23a) integrally provided at an inner end of the extended seedling bed (T1), and the seedling frame (21) on the lower mounting member (23a) An upper mounting member (23c) sandwiching and integrally fixing by a fastening member (23b), and a protective member (23d) securing a tightening limit between the upper mounting member (23c) and the lower mounting member (23a) And that,
A pivoting support (26) is provided between the extended seedling bed (T1) and the lower mounting member (23a) to pivotally support the extended seedling bed (T1) so that it can bounce up to the traveling vehicle body side A seedling transplanter that features .