Ride-on seedling planter

Abstract

To address such a problem that conventionally, some type of the sulky seedling planting machine for planting seedlings while traveling in a paddy field, includes a GPS antenna on a reserve seedling frame provided on left / right of a front part of a traveling vehicle body, however, the sulky seedling planting machine includes the GPS antenna on the reserve seedling frame extending high toward the upper side of a machine body including multistage reserve seedling trays or seedling box rails whose position can be changed freely between a folded state and a horizontal state, accordingly, the reserve seedling frame protrudes upward, and there is a problem in a storage property of the machine body; and to provide a sulky seedling planting machine having a high storage property.SOLUTION: A sulky seedling planting machine is equipped with a seedling planting part 30 including seedling trays 31 on a rear part of a traveling car body 2 and includes a GPS antenna 50 on an upper side of an antenna support frame 40 provided at a center of the left and right of the traveling car body 2, The antenna support frame 40 is configured to freely change an attitude into a substantially upright standing state (a) and a lying state (b).SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a riding seedling planter having a seedling planting unit attached to a traveling vehicle body. [Background technology]

[0002] BACKGROUND ART Conventionally, among riding seedling planters that plant seedlings while traveling in a paddy field, there is one that has a GPS antenna attached to spare seedling frames provided on the left and right sides of the front of the traveling vehicle body (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-076116 Summary of the Invention [Problem to be solved by the invention]

[0004] The ride-on seedling planter has a GPS antenna mounted on a spare seedling frame that extends high above the machine body, which is equipped with a multi-stage spare seedling carrier and seedling box rails that can be freely adjusted between a folded and horizontal position.However, there were issues with the machine's storability when the spare seedling frame remained protruding upward.

[0005] The present invention has been made in view of the above, and has an object to provide a riding seedling planter that is easy to store. [Means for solving the problem]

[0006] The first aspect of the present invention is In a riding seedling planting machine, a seedling planting section (30) equipped with a seedling placing table (31) is attached to the rear of a traveling body (2), and a GPS antenna (50) is provided on the upper part of an antenna support frame (40) provided in the center position of the left and right of the front end of the traveling body (2), the antenna support frame (40) is provided so as to be able to freely change its position between a substantially upright standing state (A) and a lying state (B), The antenna support frame (40) is composed of parallel left and right vertical frames (41L, 41R) and a pivotal support frame (43) whose base, which changes the position of the left and right vertical frames (41L, 41R), is pivotally supported on the machine body. When the antenna support frame (40) is in a horizontal, lying position (B), the left and right vertical frames (41L, 41R) extend from the front to the rear of the traveling body (2), and seedling trays (N) are placed on the top of the left and right vertical frames (41L, 41R) and can slide freely in the front-to-rear direction. According to the first aspect of the present invention, by setting the antenna support frame 40 in a substantially upright position (A) and positioning the GPS antenna 50 high on the machine body, the satellite positioning system can be operated properly and the machine can be used for work and road travel. Furthermore, if the antenna support frame 40 is changed to a horizontally laid position (B), the left and right vertical frames 41L, 41R located in the center of the left and right sides of the machine body also serve as seedling box rails, and by placing the front of the traveling body 2 on a ridge or road in the field, an operator on the ridge or road can easily load seedling boxes N from the ridge or road onto the front of the left and right vertical frames 41L, 41R, and an operator on the machine body can slide the seedling boxes N loaded on the left and right vertical frames 41L, 41R backward to efficiently and easily supply them to the seedling loading trays 31 in the seedling planting section 30 at the rear of the machine body. The second invention is a riding seedling planter of the first invention, characterized in that the inclination angle of the left and right vertical frames (41L, 41R) can be freely changed when the antenna support frame (40) is in the horizontally laid position (B). The third invention is the riding seedling planter of the first or second invention, characterized in that the GPS antenna (50) is fixed in a state where it protrudes forward from the upper ends of the left and right vertical frames (41L, 41R). The fourth invention is the riding seedling planter of the first or second invention, characterized in that the distance (D) between the left and right vertical frames (41L, 41R) is set wider than the width of the steering handle (9) and the driver's seat (8) provided in the center of the left and right of the machine body.The fifth invention is a riding seedling planter according to the third invention, characterized in that the distance between the left and right vertical frames (41L, 41R) is wider than the left-right width of the steering handle (9) and the driver's seat (8) located in the center of the left and right sides of the machine body. First invention related to the present invention This is a riding seedling planter that has a seedling planting section 30 equipped with a seedling placing table 31 attached to the rear of the running body 2, and a GPS antenna 50 attached to the top of an antenna support frame 40 located in the center left and right position of the front end of the running body 2, and the antenna support frame 40 is capable of being freely changed in position between an approximately upright standing position (a) and a lying position (b).

[0007] First invention related to the present invention According to the invention, the antenna support frame 40 is configured so that its position can be freely changed between a substantially upright standing state (a) and a lying state (b), and by setting the antenna support frame 40 in the substantially upright standing state (a) and the GPS antenna 50 in a position high on the body of the vehicle, the satellite positioning system can be operated properly and the vehicle can be used for work or road driving.

[0008] Furthermore, if the antenna support frame 40 is placed in the collapsed position (b), the height of the aircraft becomes lower, allowing it to be stored in a low shed or the like, resulting in good storability.

[0009] Second invention related to the present invention The antenna support frame 40 is composed of parallel left and right vertical frames 41L, 41R and a pivotal support frame 43 whose base for changing the position of the left and right vertical frames 41L, 41R is pivotally supported on the machine body. When the antenna support frame 40 is in a horizontally laid-down state (B), the left and right vertical frames 41L, 41R extend from the front to the rear of the traveling body 2, and seedling boxes N are placed on the top of the left and right vertical frames (41L, 41R) and can be slid freely in the front and rear directions. First invention related to the present invention It is a riding seedling planter.

[0010] According to the second invention related to the present invention, the first invention related to the present invention In addition to the above-mentioned effects, the antenna support frame 40 is made up of parallel left and right vertical frames 41L, 41R and a rotary support frame 43 whose base for changing the position of the left and right vertical frames 41L, 41R is pivotally supported on the vehicle body, and when the antenna support frame 40 is in the horizontally laid state (B), the left and right vertical frames 41L, 41R extend from the front to the rear of the traveling body 2, and the seedling tray N is placed on top of them and is configured to slide freely in the front and rear directions. Therefore, when the antenna support frame 40 is in the horizontally laid state (B), When the position is changed to state (b), the left and right vertical frames 41L, 41R located in the center of the left and right sides of the machine body also serve as seedling box rails, and by placing the front of the traveling body 2 on a ridge or road in the field, a worker on the ridge or road can easily load and supply seedling boxes N from the ridge or road onto the front of the left and right vertical frames 41L, 41R, and the worker on the machine body can slide the seedling boxes N loaded on the left and right vertical frames 41L, 41R backward to efficiently and easily supply them to the seedling loading table 31 in the seedling planting section 30 at the rear of the machine body.

[0011] Furthermore, since the antenna support frame 40 is located in the left-right center of the traveling body 2, when the antenna support frame 40 is changed to a horizontally laid position (b), the left and right vertical frames 41L, 41R, which also serve as seedling box rails, are located in the left-right center of the seedling placement table 31 of the seedling planting section 30, allowing seedlings to be easily supplied to each seedling placement surface of the seedling placement table 31 with good workability.

[0012] Third invention related to the present invention When the antenna support frame 40 is in a horizontally laid state (B), the inclination angle of the left and right vertical frames 41L, 41R can be freely changed. Second invention related to the present invention It is a riding seedling planter.

[0013] The fourth invention related to the present invention The GPS antenna 50 is fixed in a state where it protrudes forward from the upper ends of the left and right vertical frames 41L and 41R. The second or third invention related to the present invention It is a riding seedling planter.

[0014] The fourth invention related to the present invention According to the above, the GPS antenna 50 is fixed in a state where it protrudes forward from the upper ends of the left and right vertical frames 41L, 41R, so that the underside of the GPS antenna 50 functions as a stopper for the seedling box N that slides forward on the left and right vertical frames 41L, 41R, and the seedling box N can be appropriately restricted from moving and stopped at the front position of the left and right vertical frames 41L, 41R.

[0015] Fifth Invention Related to the Present Invention The distance D between the left and right vertical frames 41L, 41R is set wider than the width of the steering handle 9 and the cockpit 8 provided in the center of the left and right of the aircraft. Any of the first to third inventions related to the present invention It is a riding seedling planter.

[0016] Fifth Invention Related to the Present Invention According to the above, the distance D between the left and right vertical frames 41L, 41R is set wider than the width of the steering handle 9 and the cockpit 8 located in the center of the left and right sides of the aircraft, so even if the antenna support frame 40 is changed to the collapsed state (b), the operator can sit in the cockpit 8 within the distance D between the left and right vertical frames 41L, 41R and operate the steering handle 9 to control the aircraft.

[0017] The sixth invention related to the present invention The distance between the left and right vertical frames 41L, 41R is set wider than the width of the steering handle 9 and the cockpit 8 provided in the center of the left and right of the aircraft. The fourth invention related to the present invention It is a riding seedling planter. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 1 is a side view for explaining the operation of a riding rice transplanter according to an embodiment of the present invention. [Figure 2] FIG. 2 is a plan view for explaining the operation of the riding rice transplanter. [Figure 3] FIG. 2 is a perspective view of a main part of the riding rice transplanter. [Figure 4] FIG. [Figure 5] FIG. 10 is a side view illustrating the operation of a second embodiment of the present invention. [Figure 6] FIG. 10 is a perspective view illustrating the operation of the second embodiment. [Figure 7] FIG. 10 is a side view illustrating the operation of the second embodiment. [Figure 8] 10A and 10B are perspective views showing another embodiment of the top cover and front cover of the present invention. [Figure 9] FIG. 10 is a side view illustrating the operation of a third embodiment of the present invention. [Figure 10] FIG. 10 is a perspective view illustrating the operation of the third embodiment. [Figure 11] FIG. 10 is a side view illustrating the operation of a fourth embodiment of the present invention. [Figure 12] FIG. 10 is a perspective view illustrating the operation of the fourth embodiment. [Figure 13] FIG. 10 is a plan view illustrating the operation of the fourth embodiment. [Figure 14] FIG. 10 is a side view illustrating the operation of the fourth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, a riding-type rice transplanter that is an embodiment of the riding-type seedling transplanter disclosed in the present application will be described in detail with reference to the accompanying drawings. Note that the present invention is not limited to the following embodiment.

[0020] <Overall structure> As shown in Figures 1 and 2, the riding rice transplanter 1 includes a traveling vehicle body 2 that can travel in a paddy field. The traveling vehicle body 2 includes a pair of left and right front wheels 3 and a pair of left and right rear wheels 4. The traveling vehicle body 2 is a four-wheel drive vehicle in which the front wheels 3 and the rear wheels 4 are driven.

[0021] A seedling planting unit 30 that is driven to rise and fall by a lifting device is attached to the rear of the traveling vehicle body 2.

[0022] A GPS antenna 50 is provided on the upper part of an antenna support frame 40 provided at the center of the front end of the traveling vehicle body 2.

[0023] <Running vehicle 2> The traveling body 2 comprises a body frame, an engine E mounted on the body frame, and a power transmission device that transmits power generated by the engine E to the front and rear wheels 3, 4 and the seedling planting section 30. In other words, the power generated by the engine E, which is the power source, is used not only to move the traveling body 2 forward or backward, but also to drive the seedling planting section 30.

[0024] The engine E is mounted on the front of the traveling vehicle body 2. As the engine E, a heat engine such as a diesel engine or a gasoline engine is used.

[0025] The upper part of the engine E is covered by a hood 6. Floor steps 7 are provided on both the left and right sides and at the rear of the hood 6.

[0026] The floor step 7 is attached to the aircraft frame. For example, a part of the floor step 7 near the cockpit 8 (described later) is formed in a grid pattern in a plan view so that mud adhering to the worker's shoes can be washed off into the rice paddy field.

[0027] The rear center portion of the floor step 7 is formed in a convex shape, and a pilot's seat 8 is provided on the upper surface thereof.

[0028] A rear step 7R, which is configured high and also serves as a fender for the rear wheel 4, is provided at the rear end of the floor step 7.

[0029] The power transmission device includes a belt-type power transmission section to which power is transmitted from the engine E, a hydrostatic continuously variable transmission which is a transmission device that changes the speed of the power transmitted from the engine E via the belt-type power transmission section, and a transmission case.

[0030] The hydrostatic continuously variable transmission can change the output (rotation speed) and output direction (rotation direction) by operating a main speed change lever provided on an operation panel at the rear top end of the hood 6. In other words, the hydrostatic continuously variable transmission can change the forward / reverse movement and traveling speed of the traveling vehicle body 2 by changing the rotation speed and rotation direction.

[0031] The transmission case is equipped with a transmission device that transmits power from the engine E, which is changed by a hydrostatic continuously variable transmission, to each part. The transmission case is equipped with an auxiliary transmission mechanism that switches the traveling speed when driving and when working. When the auxiliary transmission lever provided on the operation panel at the rear top end of the hood 6 is operated, the transmission case switches the traveling speed of the traveling vehicle body 2 between a seedling planting speed during planting work and a road traveling speed that is faster than the seedling planting speed.

[0032] The traveling vehicle body 2 is provided with a driver's seat 8 on a floor step 7. The driver's seat 8 is a seat where an operator sits when operating the machine. The traveling vehicle body 2 is provided with a steering handle 9, a planting lever, etc. in front of the driver's seat 8.

[0033] The steering handle 9 is provided at the rear center position above the hood 6 of the vehicle body 2, and is turned by an operator to steer the left and right front wheels 3 and steer the vehicle body 2.

[0034] The operating panel of the traveling vehicle body 2 is provided with a planting lever. The planting lever is a lever that is operated to raise and lower the seedling planting unit 30 and to start and stop the seedling planting by the seedling planting unit 30.

[0035] The traveling vehicle body 2 also includes a main speed change lever and an auxiliary speed change lever. The main speed change lever is a lever that is operated to change the speed of the hydrostatic continuously variable transmission to change the forward / reverse movement and traveling speed of the traveling vehicle body 2. The auxiliary speed change lever is a lever that is operated to change the traveling speed of the traveling vehicle body 2 to a speed appropriate for the traveling location (a paddy field or a road).

[0036] The bonnet 6 is provided at the front of the vehicle body 2 so as to protrude upward from the center of the left and right of the floor step 7, and the engine E is mounted inside as described above.

[0037] An operation panel unit is provided on the top of the hood 6. The operation panel unit has a display surface that is tilted downward and rearward so as to face an operator seated in the operator's seat 8 and facing forward.

[0038] The operation panel displays information from various sensors, such as a marker sensor that detects whether the line-drawing markers described below, which form a travel reference line that serves as a guide for straight-line driving in a rice paddy field, are present on the left and right sides of the vehicle body, and a planting lever position sensor that detects the operating position of the planting lever.

[0039] The riding rice transplanter 1 is equipped with a lifting device and a seedling planting unit 30. The lifting device is equipped with a lifting link. The lifting link is a parallel link that connects the rear of the traveling body 2 and the seedling planting unit 30, and is connected to the link frame at the rear of the traveling body 2 and the seedling planting unit 30 so that it can rotate freely in the vertical direction, thereby connecting the seedling planting unit 30 to the traveling body 2 so that it can be raised and lowered.

[0040] The lifting device also includes a hydraulic lifting cylinder. The lifting cylinder extends and retracts when the planting lever is operated and the hydraulic valve is switched. The lifting cylinder extends and retracts to drive the lifting link, raising and lowering the seedling planting unit 30. That is, when the planting lever is operated, the lifting cylinder switches between a non-working position where the seedling planting unit 30 is raised and a ground work position (planting position) where the seedling planting unit 30 is lowered.

[0041] <Seedling planting section 30> As described above, the seedling planting unit 30 is attached to the rear of the traveling vehicle body 2 via a lifting link. The seedling planting unit 30 is capable of planting seedlings in multiple rows. The seedling planting unit 30 includes a seedling placement table 31, a float 32, and a planting device.

[0042] The seedling placing platform 31 has six seedling placing surfaces in the left-right direction of the machine body, the same number as the number of planting rows. Each seedling placing surface is a sloped surface that slopes downward at the rear, allowing multiple mat-like seedlings with soil to be placed in the vertical direction. The floats 32 level the muddy surface of the paddy field as they glide over it as the traveling body 2 moves. The floats 32 are equipped with a center float located in the center of the machine body in the left-right direction, and side floats located on the outside of the center float in the left-right direction, sandwiching it between them.

[0043] The rear of the floats 32 (center float and side floats) is rotatably attached to the traveling vehicle body 2 so that the front can move up and down in response to the unevenness of the paddy field, and the up and down movement of the front of the center float is detected by a rotation sensor for angle of attack control. In the seedling planting unit 30, the up and down movement of the front of the center float is detected by the rotation sensor during planting work, and in response to the detection result of the rotation sensor, the control unit switches the hydraulic valve that controls the extension and contraction of the lifting cylinder to raise and lower the seedling planting unit 30, allowing the seedling planting depth to be adjusted automatically.

[0044] The planting device is supported by the planting support frame of the seedling placing table 31 and is positioned below the seedling placing table 31. The planting device plants the seedlings with the mat-like soil attached placed on the seedling placing table 31 into the paddy field. The planting device is equipped with a planting rod and a rotary case. The planting rod takes one seedling from the seedlings with the mat-like soil attached placed on the seedling placing table 31 and plants it in the paddy field.

[0045] <Antenna support frame> As described above, the GPS antenna 50 is provided on the upper part of the antenna support frame 40 provided at the center position of the front end of the traveling vehicle body 2.

[0046] As shown in Figures 1 to 3, the antenna support frame 40 is constructed by connecting the upper ends of parallel left and right vertical frames 41L, 41R extending from below the floor step 7 to above the aircraft body with an upper horizontal frame 42, and connecting the upper and lower central parts with a gate-shaped rotating support frame 43.

[0047] A GPS antenna 50 is fixed to the upper horizontal frame 42 of the antenna support frame 40 in a state where it protrudes forward from the upper ends of the left and right vertical frames 41L, 41R.

[0048] The rotation support frame 43 of the antenna support frame 40 has left and right base portions rotatably supported by left and right pivot shafts 43a on the left and right side surfaces of the bonnet 6, and is configured so that the rotation can be fixed at a predetermined position by a fixing mechanism.

[0049] L-shaped rail members 44L, 44R are provided on the left and right vertical frames 41L, 41R of the antenna support frame 40, and seedling boxes N are placed horizontally on the rail members 44L, 44R so that they can slide freely (the drawings are simplified). In other words, the left and right vertical frames 41L, 41R of the antenna support frame 40 also serve as seedling box rails.

[0050] Therefore, the antenna support frame 40 can freely change its position between a substantially upright standing state (A) and a horizontally laid state (B).

[0051] The distance D between the left and right vertical frames 41L, 41R of the antenna support frame 40 is set wider than the left and right widths of the hood 6, the steering handle 9, and the driver's seat 8.

[0052] Therefore, even if the antenna support frame 40 is changed to a horizontally laid position (b), the operator can sit in the cockpit 8 within the distance D between the left and right vertical frames 41L, 41R and operate the steering handle 9 to control the aircraft.

[0053] Furthermore, when the antenna support frame 40 is changed to a horizontally laid-down state (b), the fixing mechanism of the rotatable support frame 43 can fix it at a predetermined angle in the horizontal state, the front-upward tilt state, or the rear-upward tilt state.

[0054] In summary, by fixing the antenna support frame 40 in a substantially upright standing position (a) and positioning the GPS antenna 50 at a high position on the aircraft, the satellite positioning system can be operated properly, allowing work and road driving to be carried out.

[0055] Furthermore, if the antenna support frame 40 is changed to a horizontal, lying position (b), the left and right vertical frames 41L, 41R located in the center of the left and right sides of the machine body also serve as seedling box rails, and by placing the front of the traveling body 2 on a ridge or road in the field, a worker on the ridge or road can easily load and supply seedling boxes N from the ridge or road onto the front of the left and right vertical frames 41L, 41R, and the worker on the machine body can slide the seedling boxes N loaded on the left and right vertical frames 41L, 41R backward to efficiently and easily supply them to the seedling loading table 31 in the seedling planting section 30 at the rear of the machine body.

[0056] Furthermore, since the antenna support frame 40 is located in the left-right center of the running body 2, when the antenna support frame 40 is changed to a horizontally lying position (b), the left and right vertical frames 41L, 41R, which also serve as seedling box rails, are located in the left-right center of the seedling placement table 31 of the seedling planting section 30, allowing seedlings to be easily supplied to the six seedling placement surfaces of the seedling placement table 31 with good workability.

[0057] Furthermore, when the antenna support frame 40 is changed to a horizontally laid-down state (b), the fixing mechanism of the pivoting support frame 43 can fix it at a predetermined angle in a horizontal state, a front-upward tilted state, or a rear-upward tilted state, so that the left and right vertical frames 41L, 41R, which also serve as seedling tray rails, can be fixed in a horizontal state, a front-upward tilted state, or a rear-upward tilted state.

[0058] Therefore, for example, when a worker standing on a ridge or road places seedling boxes N from the ridge or road onto the front parts of the left and right vertical frames 41L, 41R, and then slides the seedling boxes N placed on the left and right vertical frames 41L, 41R backward to supply them to the seedling loading table 31 in the seedling planting section 30 at the rear of the machine body, if the left and right vertical frames 41L, 41R, which also serve as seedling box rails, are fixed in a front-upward tilted position, the seedling boxes N placed on the front parts of the left and right vertical frames 41L, 41R will slide backward under their own weight, so the worker on the machine body only needs to be at the rear ends of the left and right vertical frames 41L, 41R and supply the seedling boxes N that have slid thereto onto the seedling loading table 31, which improves workability.

[0059] At this time, since the GPS antenna 50 is fixed in a state where it protrudes forward from the upper ends of the left and right vertical frames 41L, 41R, the underside of the GPS antenna 50 functions as a stopper for the seedling box N that slides forward on the left and right vertical frames 41L, 41R, which also serve as seedling box rails, and the seedling box N can be appropriately restricted from moving and stopped at the front position of the left and right vertical frames 41L, 41R, which also serve as seedling box rails.

[0060] In addition, if the left and right vertical frames 41L, 41R, which also serve as seedling box rails, are fixed in a rear-upward tilted state, the empty seedling box N after seedlings have been supplied to the seedling placing table 31 can be placed on the rear ends of the left and right vertical frames 41L, 41R, which also serve as seedling box rails, and the seedling box N will slide forward under its own weight, allowing a worker on a ridge or road to remove the seedling box N that has slid to the front of the left and right vertical frames 41L, 41R from the machine body and easily collect it on the ridge or road.

[0061] Furthermore, even if the machine body stops tilted forward or backward in the field, the fixing mechanism of the pivoting support frame 43 can adjust and fix the left and right vertical frames 41L, 41R, which also serve as seedling tray rails, to a horizontal position.

[0062] When storing the riding rice transplanter 1 in a shed or the like, the antenna support frame 40 can be placed in a horizontal, lying position (b) to lower the height of the machine body, allowing it to be stored in a low shed or the like.

[0063] Furthermore, as shown in FIG. 4, the antenna support frame 40 is placed in a horizontally laid position (B), and the mounting plates 55 are placed side by side on the left and right vertical frames 41L, 41R, and then the storage cover 60 is placed over them.

[0064] Therefore, the antenna support frame 40 functions as a support stay for the storage cover 60, and the storage cover 60 can neatly cover the hood 6, the steering handle 9 and the cockpit 8.

[0065] Furthermore, the upper part of the storage cover 60 that covers the antenna support frame 40 can be used as a storage platform. The floor step 7 can also be used as a storage, so that the storage can be used as a two-tiered storage.

[0066] <Another embodiment>

[0067] (1) FIGS. 5 to 7 show a second embodiment of the antenna support frame 40. FIG.

[0068] That is, the upper cover 6a and front cover 6b of the hood 6 are provided on the left and right vertical frames 41L, 41R of the antenna support frame 40 so as to be slidable and fixed at predetermined positions.

[0069] Therefore, as shown in Figures 5 and 6, when the antenna support frame 40 is fixed in an approximately upright standing position (a), and the upper cover 6a and front cover 6b are slid to the lowest ends of the left and right vertical frames 41L, 41R and fixed therein, the upper cover 6a and front cover 6b become integrated with the other covers of the bonnet 6 to form the bonnet 6 for normal operation.

[0070] During maintenance, the upper cover 6a and the front cover 6b are moved upward along the left and right vertical frames 41L, 41R and fixed in place, completely opening up the upper and front of the hood 6, making it easier for the worker to get their hands and body close to the inside of the hood 6 and performing maintenance easily.

[0071] Furthermore, as shown in Figure 7, when the antenna support frame 40 is changed to a horizontally laid position (b) and fixed, and the upper cover 6a and front cover 6b are slid along the left and right vertical frames 41L, 41R, the front cover 6b becomes a loading surface, and seedling trays N, fertilizer, and other seedling raising materials can be placed on the front cover 6b and easily moved from the front to the rear of the machine, thereby reducing the amount of work required.

[0072] 8(A) and (B) show another embodiment of the upper cover 6a and the front cover 6b, in which the upper cover 6a and the front cover 6b are rotatably connected at the joint 6c', and the position can be freely changed between a bonnet-shaped state A in which the upper cover 6a and the front cover 6b are bent and connected to each other, and a flush state B in which the top surfaces of the upper cover 6a and the front cover 6b are flush with each other.

[0073] In addition, a headlight 6d is provided in front of the upper cover 6a, and when the position is changed to a flush state B in which the upper surfaces of the upper cover 6a and the front cover 6b are flush with each other, the headlight 6d is configured to be hidden inside the flush plane.

[0074] Therefore, when the antenna support frame 40 is changed to a horizontally laid-down position (b) and fixed, and then changed to a coplanar position B in which the upper surfaces of the upper cover 6a and the front cover 6b are on the same plane, and the upper cover 6a and the front cover 6b are slid along the left and right vertical frames 41L, 41R, the upper surfaces of the upper cover 6a and the front cover 6b become a wide loading surface, and many seedling trays N, fertilizer and other seedling raising materials can be loaded and easily moved from the front to the rear of the machine, thereby reducing the work effort.

[0075] Furthermore, because the upper cover 6a does not protrude downward from the antenna support frame 40, even if the vertical position is set low when the antenna support frame 40 is changed to the horizontally laid state (B), it will not interfere with the steering wheel 9 or the cockpit 8. Therefore, by setting the vertical position low when the antenna support frame 40 is changed to the horizontally laid state (B), the labor required for the work can be further reduced.

[0076] In addition, a headlight 6d is provided in front of the upper cover 6a, and when the position is changed to the same plane state B where the upper surfaces of the upper cover 6a and the front cover 6b are on the same plane, the headlight 6d is hidden inside the same plane, so the headlight 6d will not be damaged even if seedling raising materials such as seedling boxes N and fertilizer are placed on the upper surfaces of the upper cover 6a and the front cover 6b.

[0077] (2) FIG. 9 shows a third embodiment of the antenna support frame 40.

[0078] That is, the upper cover 6a and the front cover 6b of the hood 6 are fixed to the lower parts of the left and right vertical frames 41L, 41R of the antenna support frame 40.

[0079] Therefore, when the antenna support frame 40 is fixed in an approximately upright standing position (a), the upper cover 6a and the front cover 6b become integrated with the left and right side covers 6c of the bonnet 6, forming the bonnet 6 for normal operation.

[0080] During maintenance, when the antenna support frame 40 is fixed in a horizontally laid-down position (b), the upper cover 6a and the front cover 6b rotate upward and open together with the left and right vertical frames 41L, 41R, completely opening up the upper and front of the hood 6, making it easier for the worker to get their hands and body close to the inside of the hood 6 and facilitating maintenance.

[0081] The left and right side covers 6c are rotatably supported by left and right pivot shafts 43a and are configured to be connectable to and disconnectable from the top cover 6a and front cover 6b.

[0082] Therefore, if the left and right side covers 6c are connected to the top cover 6a and the front cover 6b, and the antenna support frame 40 is fixed in a horizontally laid-down position (b) during maintenance as shown in Figure 10, the top cover 6a, the front cover 6b, and the left and right side covers 6c will rotate upward and open together with the left and right vertical frames 41L, 41R, completely opening up the top, front, left and right sides of the hood 6, and furthermore, the worker's hands and body can easily approach the inside of the hood 6, making maintenance easy to perform.

[0083] Furthermore, if the left and right side covers 6c are disconnected from the upper cover 6a and the front cover 6b, when the antenna support frame 40 is fixed in a horizontally laid state (b) during maintenance, only the upper cover 6a and the front cover 6b rotate upward and open together with the left and right vertical frames 41L, 41R, thereby opening the upper and front of the hood 6.

[0084] (3) FIGS. 11 to 14 show a fourth embodiment in which a seedling rail 70 that is long in the left-right direction of the vehicle body is provided on the rear of the traveling body 2.

[0085] That is, the seedling rail 70 is composed of a pair of front rails 71 and rear rails 72, and when the front rails 71 and rear rails 72 are arranged opposite each other, seedling boxes N or seedling rescue boards carrying seedlings scooped from seedling boxes N by the seedling rescue boards can be placed in a long, forward-backward direction, and the placed seedling boxes N or seedling rescue boards can be slid left and right on the seedling rails 70 in the left and right directions of the machine body.

[0086] In particular, the front rail 71 is divided into left and right rails 71a and a center rail 71b.

[0087] The left and right rails 71a are disposed opposite the rear rail 72 and are fixed to the aircraft body.

[0088] The center rail 71b has a length slightly longer than the width of the cockpit 8, and is pivotally supported on a pivot shaft 75 on the aircraft body.

[0089] More specifically, the cockpit 8 is fixed to a pivot shaft 75 that is rotatably mounted on the aircraft body, and the central rail 71b is fixed to the tips of left and right support rods 76 that are located behind the backrest of the cockpit 8 and have their bases fixed to the pivot shaft 75.

[0090] Therefore, the central rail 71b and the cockpit 8 rotate integrally around the pivot shaft 75, and can be freely switched and fixed between a state in which the cockpit 8 is ready for seating and the central rail 71b is positioned at the rear and above (the state shown in Figures 11 to 13), and a state in which the cockpit 8 is stored with the backrest facing downward and the central rail 71b is aligned with the left and right rails 71a and faces the rear rail 72 (the state shown in Figure 14).

[0091] The rear step 7R has a recess 7a at the center of its left and right sides, which is one step lower.

[0092] The width of the recess 7a is wider than the width of the pilot's seat 8, and the recess is designed so that the backrest does not come into contact with the recess when the pilot's seat 8 rotates around the pivot shaft 75.

[0093] Therefore, since a recess 7a is provided in the left and right central portions of the rear step 7R, the seedling rail 70 can be positioned at a relatively low position without interfering with the rear step 7R when the driver's seat 8 rotates around the pivot axis 75, and the work of supplying seedling boxes N or seedling rescue plates to the seedling rail 70 and the work of supplying seedlings from the seedling boxes N or seedling rescue plates placed on the seedling rail 70 to the seedling placement table 31 in the seedling planting section 30 can be performed easily and efficiently.

[0094] In addition, the pivot axis 75 of the central rail 71b and the driver's seat 8 is positioned midway between the front rail 71 and the rear rail 72 when viewed from the side. In other words, the driver's seat 8 is positioned within the seedling rail 70. Compared to a configuration in which the seedling rail 70 is located behind the driver's seat 8, the length of the machine body can be made shorter, improving driving and working performance within the field.

[0095] A fuel tank 80 is disposed below a recess 7a in the center of the left and right of the rear step 7R, and a fuel supply port 80a is provided in front of the recess 7a.

[0096] Therefore, the fuel tank 80 can be placed in a low position on the aircraft body, lowering the aircraft's center of gravity and improving running performance.

[0097] Furthermore, since fuel supply port 80a is provided in the front position of recess 7a, when cockpit 8 is stored with the backrest facing downward and central rail 71b is switched to a state in which it is aligned with left and right rails 71a and faces rear rail 72 (the state shown in Figure 14), fuel supply port 80a provided in the front position of recess 7a is opened, allowing fuel to be easily supplied.

[0098] In addition, when the driver's seat 8 is stored with the backrest facing downward, the central rail 71b is aligned with the left and right rails 71a and switches to a position facing the rear rail 72 (the position shown in Figure 14), and the seedling boxes N or seedling rescue boards are supplied to the seedling rail 70, or seedlings are supplied from the seedling boxes N or seedling rescue boards placed on the seedling rail 70 to the seedling placement tables 31 in the seedling planting section 30.At this time, since the driver's seat 8 is stored with the backrest facing downward, the seat surface and backrest of the driver's seat 8 can be prevented from becoming dirty with mud or muddy water falling from the seedling boxes N or seedling rescue boards.

[0099] In addition, since the operator's seat 8 is in a stored state and there is no operator's seat 8 in front of the seedling rail 70, the operator can easily and efficiently supply seedling boxes N or seedling rescue plates to the seedling rail 70 and supply seedlings from the seedling boxes N or seedling rescue plates placed on the seedling rail 70 to the seedling placement table 31 in the seedling planting section 30. [Explanation of symbols]

[0100] 2 Running vehicle 8. Cockpit 9 Steering wheel 30 Seedling planting department 31 Seedling stand 40 Antenna support frame 41L Left vertical frame 41R Right vertical frame 43 Rotating support frame 50 GPS antenna D interval N seedling box (a) Standing state (b) Fallen state

Claims

1. A riding seedling planting machine having a seedling planting section (30) equipped with a seedling placing table (31) attached to the rear of a traveling body (2), and a GPS antenna (50) attached to the top of an antenna support frame (40) provided in the center position on the left and right of the front end of the traveling body (2), wherein the antenna support frame (40) is provided so as to be able to freely change its position between a substantially upright standing state (a) and a lying state (b), The riding seedling planter is characterized in that the antenna support frame (40) is composed of parallel left and right vertical frames (41L, 41R) and a rotating support frame (43) whose base, which changes the position of the left and right vertical frames (41L, 41R), is pivotally supported on the body of the machine, and when the antenna support frame (40) is in a horizontally laid position (b), the left and right vertical frames (41L, 41R) extend from the front to the rear of the running body (2), and seedling boxes (N) are placed on the top of the left and right vertical frames (41L, 41R) and are configured to slide freely in the front and rear directions.

2. 2. A riding seedling planter as claimed in claim 1, characterized in that the inclination angle of the left and right vertical frames (41L, 41R) can be freely changed when the antenna support frame (40) is in a horizontally laid position (b).

3. 3. The riding seedling planter according to claim 1, wherein the GPS antenna (50) is fixed to the upper ends of the left and right vertical frames (41L, 41R) in a state where it protrudes forward.

4. A riding seedling planter as described in claim 1 or 2, characterized in that the distance (D) between the left and right vertical frames (41L, 41R) is wider than the left and right width of the steering handle (9) and the driver's seat (8) located in the center of the left and right parts of the machine body.

5. A riding seedling planter as described in claim 3, characterized in that the distance between the left and right vertical frames (41L, 41R) is wider than the left and right width of the steering handle (9) and the driver's seat (8) located in the center of the left and right parts of the machine body.

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