JP2007001581A - Rice seedling planting machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rice seedling planting machine of light car body structure having a high floor and a wide step easy for a worker to get on and capable of stably travelling for the work, while travelling in a deep muddy cultivated land. <P>SOLUTION: A floor frame 2 for supporting the step floor is provided over a car body frame 1 of a car body, and the floor frame 2 is structured of a front frame 9 provided on a front side of the car body, a rear frame 4 provided on a rear side of the car body and a side frame 10 for connecting both the frames 9 and 4. An outside frame 17 for supporting an outside floor 16 is arranged outside the floor frame 2, and a front part of the outside frame 17 is supported by a rice seedling frame support frame 15 for supporting an auxiliary rice seedling loading frame 14 by projecting outside from a front axle housing 11, and a rear part of the outside frame 17 is supported by a projecting frame 13 projected outside from the rear frame 4. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a seedling planting machine.

The vehicle body of the passenger tractor has a configuration in which the vehicle body is integrally connected in a series from the front engine body to the clutch housing, the front transmission case, and the rear transmission case, and becomes a heavy vehicle body. For this reason, it is inadequate as management work of a high floor form.
JP 2002-264678 A

  Since the seedling planter works while traveling on the deep soil surface of the mud cultivator, it has a high floor form, the weight of the vehicle body is light, and the step floor on which the operator can board is widely configured. In addition, it is necessary to have a vehicle body configuration capable of performing stable traveling work.

  According to the first aspect of the present invention, in a seedling planting machine in which a seedling planting device 25 is mounted on a rear part of a vehicle body via a lift link 67 so as to be movable up and down, a floor frame 2 that supports a step floor above the body frame 1 of the vehicle body. The floor frame 2 is composed of a front frame 9 on the front side of the vehicle body, a rear frame 4 on the rear side of the vehicle body, and a side frame 10 connecting the frames 9 and 4, and an outside floor 16 is provided outside the floor frame 2. An outside frame 17 to be supported is disposed, and a front portion of the outside frame 17 is extended outside the front axle housing 11 and supported by a seedling frame support frame 15 that supports the auxiliary seedling mounting frame 14, and the rear portion is supported. This is a seedling planting machine supported by an overhanging frame 13 projecting outside the rear frame 4.

  Accordingly, a wide step floor can be formed, and a rigid support structure can be obtained with increased rigidity while the outside floor 16 is lightened.

  According to the first aspect of the present invention, the floor frame 2 includes a front frame 9 on the front side of the vehicle body, a rear frame 4 on the rear side of the vehicle body, and a side frame 10 that couples both frames 9 and 4. An outside frame 17 that supports the outside floor 16 is disposed, and a front part of the outside frame 17 is extended outward from the front axle housing 11 to support the auxiliary seedling mounting frame 14. Since the rear frame is supported by the overhanging frame 13 projecting to the outside of the rear frame 4, a wide step floor can be formed, and the outside floor 16 is made lighter and more rigid and stable. Support structure. Therefore, the problem can be solved with a simple and lightweight configuration.

  Hereinafter, the case where it implements as a seedling transplanter is demonstrated based on drawing. The vehicle body includes a vehicle body frame 1 that extends in the front-rear direction at the center lower portion and a floor frame 2 that supports a step floor, a seat frame 8 and the like above the vehicle body. A front axle having a front wheel 18 is provided at the front end of the vehicle body frame 1. The housing 11 is connected, and the rear end connects the left and right rear axle housings 12 having the double rear wheels 19 to the connecting axle bracket portion 48. By arranging the floor frame 2 high above the vehicle body frame 1 in this way, the frames 1 and 2 are supported and configured using relatively thin members, so that the weight and rigidity are reduced, and the steps are small and wide. It can be a floor form.

  The floor frame 2 forms a front frame 9 on the front side, a rear frame 4 on the rear side, and side frames 10 on the left and right sides with the seat frame 8 as a central portion. The outside frame 17 is further configured outside the side frame 10. On the upper side of the floor frame 2, step panels or floor panels can be laid and stepped on.

  A steering handle 21 is provided on the steering post 20 at the front part of the vehicle body, and each wheel 18 and 19 can be driven by an engine 23 mounted under the seat frame 8 to drive, and a PTO shaft 24 at the rear part of the vehicle body is linked. The multi-row planting / planting device 25 connected to the rear of the vehicle body can be transmitted. 22 is a bonnet.

  The rear seedling mounting frame 6 can be provided above the rear frame 4 on the rear side of the driver's seat 3 and can mount mat-type seedling seedlings to be supplied to the seedling planting device 25. The seedling frame 6 is composed of a center frame portion 26 positioned above the rear frame 4 portion and side frame portions 27 that can be folded at both left and right end portions. A seedling can be placed.

  Here, a floor frame 2 is supported above the body frame 1, and a rear frame 4 located behind the driver's seat 3 part of the floor frame 2 is supported by a lateral bracing 5 with respect to the body frame 1. Since the rear frame 4 at the rear part of the driver's seat 3 is supported between the lower body frame 1 and the lower body frame 1 via lateral braces 5, the body frame 1, the rear frame 4, Even if the vertical interval is set to be large, the weight can be reduced by supporting or mounting through a thin support member, and the wide floor frame 2 can be stably supported without shaking.

  Since the lateral bracing 7 is provided between the body frame 1 to the rear frame 4 and the rear seedling mounting frame 6 supported above the rear frame 4, the seedling mounting frame 6 is provided above the rear frame 4. In the mounting form, by supporting the seedling mounting frame 6 via the brace 7, a wide seedling mounting frame 6 can be configured high, and stable seedling mounting can be performed.

  A seat frame 8 that bulges upward is the central part, a front frame 9 is disposed on the front side, and a rear frame 4 higher than this is disposed on the rear side. Since the floor frame 2 constituted by arranging the bent side frame 10 over the frame 4 is supported above the vehicle body frame 1 connecting the front axle housing 11 and the rear axle housing 12, the floor frame 2 Is supported above the body frame 1, but forms a seat frame 8 that bulges upward in the center, and the front part is bent along the left and right sides of the seat frame 8 and the rear part is bent high. Since the side frame 10 is formed, it is possible to increase the rigidity while reducing the weight.

  The outside frame 13 extends between the side frame 10 and the rear frame 4, and the seedling frame support frame 15 that projects outside the front axle housing 11 and supports the auxiliary seedling mounting frame 14. Since the outside frame 17 that supports the floor 16 is attached and supported, the outside frame 17 is attached and supported on the outside of the side frame 10, the rear frame 4, the front axle housing 11, and the like to form the outside floor 16. Therefore, a wide step floor can be formed, and a stable support structure can be obtained.

  Here, the vehicle body frame 1 is made of a square tube material, the pair of left and right front end portions is narrowed, the rear end portion is widened, and appropriate front and rear portions are connected by a horizontal connecting member 28 to be integrated. It is said. The front end of the vehicle body frame 1 is connected to the transmission case 29 and the rear end is connected to the central portion of the rear axle housing 12.

  The floor frame 2 is provided at an appropriate height position above the body frame 1. For this reason, support brackets 30 and 31 are erected on the front and rear of the vehicle body frame 1 to support the main front frame 32 in the lateral direction with the support brackets 30. The rear frame 4 is supported.

A front end portion of the side frame 10 is supported on the main front frame 32 via a support bracket 33, and a rear portion is bent upward and connected to the rear frame 4.
A front end frame 34 in the horizontal direction is provided at the front end portion of the mission case 29. In addition, front axle housings 11 are provided on the left and right sides of the rear part, and the front wheel 18 is rotatably mounted on the lower end part of the terminal housing 35 in the vertical direction at the outer end. A front frame 9 and an auxiliary frame 36 are provided between the front end frame 34 and the main front frame 32 so as to cross over the front axle housing 11.

  A seedling frame support frame 15 is provided outside the front axle housing 11, and the auxiliary seedling mounting frame 14 is supported at the tip. Further, the lateral end of the main front frame 32 is projected, and the overhanging frame 13 is protruded from the outer end of the rear frame 4, so that the seedling frame support frame 15, the main front frame 32, and the overhanging frame 13 are The outside frame 17 is supported via the brackets 37, 38, 39 across the gap. A lifting step 40 is provided outside the outside frame 17.

  The steering post 20, the bonnet 22, and the like are configured so as to cover the upper part of the front end frame 34 from the upper part of the mission case 29. The seat frame 8 is made of sheet metal and is formed in a dome shape. The front end edge is mounted on the main front frame 32, the rear end edge is mounted on the rear frame 4, and the lateral end edge is mounted on the side frame 10. The driver's seat 3 that can be pivoted back and forth around the hinge 43 is mounted on the upper side, and a damper 44 is interposed and supported on the upper side.

  As shown in FIGS. 7 and 8, the seat frame 8 has a mounting structure in which a support bracket 76 having a pin groove 75 formed above the support bracket 30 is provided, and a support pin 77 attached to the front portion of the seat frame 8. The seat frame 8 can be used as a hinge for attaching / detaching and opening / closing rotation. The rear frame 4 is provided with a hook bracket 79 formed with a hook hole 78, and a hook 80 attached to the rear portion of the seat frame 8 is engaged with the hook hole 78 so that the seat frame 8 is closed. Can be fixed.

  The hook 80 is rotatable to the left and right by a hook shaft 81 with respect to the seat frame 8 and is urged to rotate toward the hook bracket 79 by a spring. The tip of the hook 80 is formed on the surface of the taper cam 82, and is engaged with the hook hole 78 by slidingly contacting the hook bracket 79 and rotating against the spring as the seat frame 8 moves downward. Is done. The engagement is released by operating a knob 83 fixed to the outer end of the hook shaft 81 to rotate against the spring.

  The seat frame 8 attached in this way is configured to cover the upper side of the engine room 41, but the lower end peripheral edge portion 84 of the seat frame 8 is supported by pressure on the lower floor panel 49 or the upper surface of the floor mat 50. The

The seat frame 8 is made of a sheet metal, but it may be formed as a bowl-shaped frame made of a tube material and a cover attached to the outer periphery.
The side frame 10, the outside frame 17, and the like are configured in a stage form in which the rear part is bent upward, the front part is low, and the rear part is high. The seat frame 8 is formed so as to bulge from the front and rear main front frames 32 to the rear frame 4 and between the left and right side frames 10. Therefore, the center portion of the floor frame 2 is formed in a dome shape by the seat frame 8 bulging upward and the side frame 10 bent upward at the rear, and the overall rigidity of the vehicle body can be obtained even in a thin and light frame member configuration. Can be increased.

  In the rear frame 4 part, the bracing 5 is connected between the vehicle body frame 1 at the lower center and the outside frame 17 at the outer upper part. Thus, by providing the bracing 5 below the high rear frame 4 portion of the floor frame 2, the rigidity of the entire rear frame 4 portion can be increased. In particular, in a form in which the outside frame 17 is formed by overhanging, the support of this portion can be stabilized. Further, in the form in which the outside frame 17 is not provided, the outer end of the bracing 5 can be connected to the outer end of the rear frame 4 or the side frame 10.

  The seedling frame 6 is supported above the rear frame 4 part. The center frame portion 26 is supported between the left and right ends with the outside frame 17 by a pair of front and rear columns 45. Between the center frame portion 26 and the support bracket 31 on the rear portion of the vehicle body frame 1, the bracing 7 is provided symmetrically. Reference numeral 46 denotes a connecting rod, which is fixed to the lower side of the center portion of the center frame portion 26 and has a lower end portion connected to the support bracket 31 portion or the like, thereby providing a more stable weight seedling support structure.

  The seedling frame 6 is configured so that the width of the center frame portion 26 is substantially the same as the tread width of the rear wheel 19, and the side frame portion 27 is rotated around the hinge 47 inward and outward at the outer end of the center frame portion 26. It is configured to be foldable by moving. At the time of seedling planting work, the side frame portion 27 is extended to the outside, and mat-like seedlings are mounted over the entire width of the seedling mounting frame 6, and when the seedling runs out, the side frame portion 27 is folded and stored.

  A floor panel 49, a floor mat 50, and the like are laid on each frame 4, 9, 10, etc. of the floor frame 2. Among them, a side mat 51 that is long in the front-rear direction from the front frame 9 to the side frame 10 is laid on the upper surface of the floor panel 49, and a rear mat 52 is laid on the rear frame 4. An outside floor 16 is attached on the outside frame 17. 53 and 54 are slits formed in the floor panel 49, the floor mat 50, and the like, and the driver steps through the slits 53 and 54 while the driver operates from the driver's seat 3 to see through the stepping positions of the front wheels 18 and the rear wheels 19. can do.

  The mounting structure of the floor panel 49, the floor mat 50, and the like can be attached and detached by a hook mechanism 55 as shown in FIG. A groove 56 is formed in the floor panel 49, and a hook 59, which forms a hook portion 57 and a lever portion 58, is provided in the groove 56 so as to be pivotable up and down around the hook shaft 60. By projecting downward from the hole 61 at the bottom, it is possible to engage with a hook bar 62 on the floor frame 2 side disposed below the floor panel 49. The lever portion 58 is stretched by the elasticity of the hook bar 62 and the floor panel 49 by rotating the hook portion 57 from the state standing on the groove 56 to the state where the hook portion 57 is engaged with the hook bar 62 and submerged in the groove 56. The engagement state of the hook 59 can be maintained by being pressed, and the lever portion 58 can be positioned in the groove 56 to prevent obstruction due to upward protrusion. Even if the floor mat 50 is laid on the upper side, it does not get in the way. Further, when the floor mat 50 is configured such that a cut 63 is formed in the mat portion located on the upper side of the groove 56 so that the partial mat piece 64 can be turned up, the detaching operation from the turned-up portion is performed. Is easy.

  Also, the outside floor 16 can be attached and detached by fitting the pin holes 65 arranged on the front and rear sides to the positioning pins arranged on the lower outside frame 17 so that the patch 16 is provided between the floor 16 and the frame 17. 66 can fix and release the attachment from the upper surface of the floor 16.

  The side mat 51 and the rear mat 52 are laid on the floor portion close to the driver's seat 3 in the left-right direction, and the outside floor 16 is attached to the floor portion away from the driver seat 3 in the left-right direction. When the worker gets on and off through the lifting step 40, even if the muddy water in the field on the worker's feet rises on the floor, the outside floor 16 has a mud drainage and drainage compared with the mat laid. In the vicinity of the driver's seat 3, the side mat 51 and the rear mat 52 are provided with anti-slip to prevent the feet from slipping.

  A lift link 67 is provided on the support bracket 31 at the rear end of the vehicle body frame 1 so as to be movable up and down, and is lifted and lowered by hydraulic expansion and contraction of the lift cylinder 68. A seedling planting frame 70 portion of the seedling planting device 25 is connected to the hitch link 69 at the rear end of the lift link 67.

  In the seedling planting device 25, a seedling tank 73 is arranged on the upper side of the seedling planting frame 70 that is slidably supported by the center float 71 and the side float 72 so that the seedling tank 73 can be reciprocated left and right. A seedling planting claw 74 that is planted on the soil surface while separating seedlings is arranged.

  As shown in FIGS. 11 and 12, a fertilizer is mounted on the rear frame 4 together with or in place of the seedling mounting frame 6, and the seedling planting soil of the seedling planting device 25 is mounted. It can be configured to fertilize the surface. At this time, the rear mat 52 is replaced with one having a shorter front and rear length, and the fertilizer 85 is disposed at the rear of the vehicle body so that the rear mat 52 is disposed on the front side of the fertilizer 85. When the rear mat 52 having a short front and rear length is mounted, the rear end of the rear mat 52 and the rear end of the side floor 16 are substantially in the same position in the front-rear direction (in side view of the body). Therefore, when the fertilizer 85 is not mounted, the rear end of the rear mat 52 protrudes rearward from the rear end of the side floor 16, so that an operator can easily supply the seedling tank 73 from the rear mat 52 to the seedling tank 73. it can. Further, with the presence or absence of mounting of the fertilizer 85, only the rear mat 52 is replaced while the side floor 16 remains unchanged, and this recombination becomes easy.

Side view. The top view of the floor frame part. The rear view. The rear view of a seedling mounting frame part. The top view of a floor mat part. A partial cross-sectional view and a plan view thereof. The perspective view of an engine room part. The perspective view of a seat frame part. The top view of a seedling transplanter. The side view. The top view of the seedling planting machine carrying a fertilizer application. The side view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Body frame 2 Floor frame 3 Driver's seat 4 Rear frame 5 Bracing 6 Seedling frame 7 Bracing 8 Seat frame 9 Front frame 10 Side frame 11 Front axle housing 12 Rear axle housing 13 Overhang frame 14 Auxiliary seedling mounting frame 15 Seedling frame Support frame 16 Outside floor 17 Outside frame 25 Seedling device 67 Lift link

Claims (1)

  A floor frame (2) for supporting a step floor above a body frame (1) of a vehicle body in a seedling planter in which a seedling planting device (25) is mounted on a rear portion of the vehicle body via a lift link (67) so as to be movable up and down. The floor frame (2) is composed of a front frame (9) on the front side of the vehicle body, a rear frame (4) on the rear side of the vehicle body, and a side frame (10) connecting both frames (9, 4). An outside frame (17) that supports the outside floor (16) is arranged outside the frame (2), and a front portion of the outside frame (17) is projected outside the front axle housing (11). It is supported by a seedling frame support frame (15) that supports the auxiliary seedling mounting frame (14), and is supported by an overhanging frame (13) that projects the rear part outside the rear frame (4). Seedling planting machine, characterized in that.

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