JP3082219B2 - Riding rice transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

 The present invention relates to a riding type rice transplanter.

[Prior art]

Conventionally, there is a riding type rice transplanter in which a step floor is arranged on a traveling vehicle body connected to a seedling planting work machine on the rear side, and a spare seedling mounting frame for mounting a seedling box so as to protrude outside the step floor is provided. Was.

[Problems to be solved by the invention]

The prior art rice transplanter is disposed so as to protrude outward so that the spare seedling mounting frame does not obstruct the operator moving on the step floor. But,
For this reason, there was a disadvantage that the left and right widths of the airframe were widened. Therefore, the present invention has a problem in that a space on the step floor is secured while maintaining the miniaturization of the body, and a space for placing a seedling box for replenishment is secured.

[Means for Solving the Problems]

In order to solve the above-mentioned problem, the present invention provides a traveling vehicle 1 having a seedling planting work machine 2 connected to a rear side thereof.
And a seat 9 is arranged on the step floor 8, and in a riding type rice transplanter in which a handle 15 is erected in front of the seat 9, one end of a seedling box can be leaned on the step floor 8. Seedling box fixing parts 44, 44, 4 with which the parts are engaged
4 'and 44' are provided on the step floor 8 on the left and right sides of the seat 9 or the handle 15 to provide a riding type rice transplanter.

Actions and effects of the present invention

The present invention provides a seedling box fixing portion 44, 44 for holding a seedling box containing seedlings in a standing posture in a state of being inclined toward the center of the machine in the left-right direction.
44 ', 44' are provided on the left and right sides of the traveling body 1, and floor surfaces extending in the front and rear directions of the body of the step floor 8 are provided outside the seedling box fixing portions 44, 44, 44 ', 44' in the left and right direction of the machine body. The seedling box holding the seedlings is held on the traveling vehicle body 1 by the seedling box fixing portions 44, 44, 44 ', 44'. The upper part of the floor surface extending in the front and rear directions of the side body is not largely obstructed, and the movement of the worker on the step floor 8 is not largely obstructed. Therefore, while reducing the workability on the vehicle body as much as possible, the seedlings for replenishment are mounted on the traveling vehicle body 1 with a simple configuration, so that the body can be reduced in size and weight. Also, since the seedling box is held in the upright position, there is a concern that the seedlings in the seedling box may be turned up and down compared to the horizontal position. Therefore, compared to the upright posture, the seedlings in the seedling box are unlikely to be turned over and fall. Although it is easy to fall down and fall, there is little worry about this point.

【Example】

Taking a riding type rice transplanter as an example of a riding type agricultural work machine, an embodiment of the present invention will be described in detail with reference to the drawings. Reference numeral 1 denotes a riding type traveling body, which is connected to a seedling transplanting machine 2 via a link 22 at the rear. Reference numeral 3 denotes an engine, which is mounted on a single frame 7a fixed rearward from the rear end of the transmission case 6 between the front wheels 4, 4 and the rear wheels 5, 5 in the front-rear direction. 3a is a fuel tank. On top of this tank 3a is a lid 3b
A refueling port 3c is provided, which is detachably attached, and a refueling port 3d connected to the engine 3 is provided on the lower surface.
In addition, in the vicinity of the oil supply port 3c on the upper surface of the tank 3a, FIG.
As shown in FIG. 7, a hole 3e is formed that penetrates to the lower surface and is open on the upper surface side (the hole diameter becomes smaller toward the lower side). This hole 3e functions as a fuel gauge. That is, when the hole 3e opened upward is viewed from above, the level of the fuel in the tank 3a can be visually recognized on the inclined surface of the hole 3e. Further, if a scale 3e 'is provided on the inclined surface of the hole 3e (FIG. 8) or a step 3e "is provided (FIG. 9), the position of the liquid level of the fuel can be easily understood.
Even if an inclined portion 3f is provided at the end of the tank 3a instead of 3e as shown in FIG. 10, the fuel level can be confirmed from the upper surface in the same manner, and molding becomes easier. Conventionally, the fuel gauge that can be confirmed from above is mounted as a separate gauge, but it is economical to replace the gauge only by forming a part of the tank 3a as described above. 8 is a step floor. The rear part of the step floor 8 is formed integrally with an engine cover 8a that covers the upper side of the engine 3. A seat 9 is provided on the engine cover 8a. The floor portion serving as a foothold for the operator is disposed below the handle 15 and below the seat 9. The output shaft 3a of the engine 3 is directed to the left, and the rotational power of the output shaft 3a is transmitted forward through a belt transmission mechanism 10 to drive a hydraulic pump 11 fixed to the transmission case 6. . Power is transmitted further forward from the drive shaft 11a of the hydraulic pump 11 via an auxiliary transmission 12 of a belt transmission mechanism capable of transmitting gears, and rotational power is input to an input shaft 6a on the front side of the transmission case 6. The power transmitted into the transmission case 6 is transmitted to the traveling and working machine system. In the auxiliary transmission 12, two pulleys of the same diameter are mounted on the drive shaft 11a of the hydraulic pump 11, and two large and small diameter pulleys are mounted on the input shaft 6a of the transmission case 6, and a belt is hung on each. The large diameter pulley
A mechanism is provided to selectively tension the belt that transmits to 12a (for low-speed transmission) and the belt that transmits to the small-diameter side pulley 12b (for high-speed transmission) to make the belt transmit. As a result, it is possible to selectively transmit a two-stage reduction ratio of low speed and high speed. Also, this auxiliary transmission
The outer side surface of 12 is covered with a cover 12 '. The front wheels 4, 4 are mounted on the lower case 14 b of the front wheel transmission cases 14 a, 14 b which are disposed vertically downward via the extensions 13, 13 on the left and right sides behind the transmission case 6. Transmission to the front wheels 4
Is further decelerated in the transmission and transmitted to the left and right front wheels 4 and 4 via the differential case and the transmission mechanism in the extension case 13 and the front wheel transmission cases 14a, 14a, 14b and 14b. Is done. Further, the front wheels 4, 4 are steered wheels, and the steering operation of the handle 15 is transmitted by a steering shaft 15a, and the front wheels 4, 4 are rotatable with respect to an upper front wheel transmission case 14a via arms 16, rods 17, 17. Side case 14b, 14b
And the front wheels 4, 4 corresponding to the rotation of the handle 15.
Are adapted to be steered and rotated. The rear wheels 5, 5 are provided with a rear wheel gear case 20, left and right ends of a rear wheel frame 19, which is rotatably mounted on a rolling shaft 18 fixed rearward to the center of the horizontal frame 7b at the rear end of the frame 7a. Axle on 20. Therefore, the rear wheels 5, 5 are configured to be able to roll around the rolling axis 18. The transmission to the rear wheels 5, 5 is performed after the power in the transmission case 6 is made to protrude rearward from right and left rear portions of the rear end of the transmission case 6 via a rear wheel differential device in the transmission. The transmission is transmitted to the wheel drive shafts 21 and 21, and the drive shafts 21 and 21 and the input shafts 20a and 20a of the rear wheel gear cases 20 and 20 are connected to the rear wheel transmission shafts 22 and 22 having universal joints and expansion joints. Power is transmitted to the rear wheels 5,5. 23 is a hydraulic cylinder, the base of which is the engine 3
The lower end of the arm is integral with an upper link 24a of a link 24 connecting the traveling body 1 and the working machine 2 with a tip of a piston rod supported by a bracket fixed to the frame 7a.
It is connected to. When oil flows into and out of the hydraulic cylinder 23, the piston rod protrudes and retreats, the link 24 moves up and down with the traveling vehicle body 1 as a pivot point, and the work implement moves up and down. Link 24 consists of upper link 24a and lower link 24b
Is connected as a link rotation fulcrum to a traveling vehicle body side link base 24c fixed to the lateral frame 7b on the traveling vehicle body 1 side,
The working machine 2 side is connected to a working machine side link base 24d that rotatably supports the working machine 2 in a laterally rolling manner. Reference numeral 25 denotes a working machine transmission shaft, which transmits the rotational power of the PTO shaft protruding rearward from the right side of the transmission case 6 to the drive shaft of the working machine 2 via a universal joint and an expansion joint. Numeral 26 denotes a seedling mounting table, which is slidably mounted on a rail fixed to the planting portion transmission case 27 so as to be inclined so that the front side is on the upper side and the rear side is on the lower side. Transmission case
The seedling mounting table 26 reciprocates left and right by the left and right reciprocating mechanism in 27 and supplies seedlings one by one to the planting devices 28 in accordance with the planting cycle. The planting device 28 is composed of two planting transmission frames extending rearward from the left and right ends of the planting portion transmission case 26, respectively.
At the rear side of 29, 29, it is attached to the left and right sides by two lines, and a total of four lines are attached. Planting equipment for each strip 28 ...
The power of the transmission case 26 is transmitted via the chain transmission mechanism in the planting transmission frames 29, 29. The planting device 28 includes a rotating case 30 and two planting tools mounted on the rotating case 30.
It is composed of 31, 31. Each of the two planting tools 31, 31 is provided with a planting claw 31a, 31a. The tip of the planting claw 31a, 31a moves in an elliptical locus by the rotation transmission of the gear train in the case accompanying the rotation of the rotating case 30. Then, seedlings are taken one by one according to the supply of seedlings on the seedling mount 26 and planted in the field. Reference numerals 32a, 32b, and 32c denote leveling floats on the left, center, and right sides, respectively, which are hung below the planting transmission frames 29, 29, and slide while leveling the mud surface of the planting field. 33 is an operation panel, which is arranged below the handle 15;
The lower side of the panel 33 is covered with a panel cover. Reference numeral 34 denotes a steering post, which supports the steering shaft 12. Post cover around the outer periphery of this post 34
The width of the cover 34a is smaller than the outer diameter of the handle 15. 35 is a clutch pedal, 36a and 36b are left and right brake pedals for the rear wheels, and 37 is a differential lock pedal. 38 is a main transmission lever, 39 is an auxiliary transmission lever, 40 is a hydraulic, planting lever. 41 is a balance weight and 42 is a battery. 43 and 43 are alignment markers. The front side of the running vehicle body 1,
Stays 43a, 43a are attached to the left and right parts so as to be horizontally rotatable, and the left and right positions, the up and down positions of the stays 43a, 43a are connected so that the marker mounting rods 43b, 43b hang down freely, The alignment markers 43, 43 of a spherical member are fixed to the lower ends of the marker mounting rods 43b, 43b. The front and rear positions of the alignment markers 43 and 43 with respect to the aircraft are arranged as far forward as possible so that the operator sitting on the seat 9 can drive the aircraft without difficulty while checking the alignment markers 43 and 43. Has been established. By the way, when the planting work travels in the paddy field, the alignment marker 43 is positioned upward with respect to the existing planting streak or ridgeline adjacent to the track, and the aircraft is caused to travel in the left-right direction. For example, the seedling transplanting machine 2 connected to the rear side is configured to plant seedlings at predetermined intervals. Marker mounting rod
By adjusting the connection left and right positions of 43b, 43b to the stays 43a, 43a, it is possible to plant seedlings at desired intervals. Also,
When the markers 43 contact the planted seedlings or ridges, it can be dealt with by adjusting the vertical position of connection of the marker mounting rods 43b, 43b to the stays 43a, 43a. Numerals 44, 44 are seedling box fixing portions for placing supplementary seedlings for replenishment on the machine body. One end of the seedling box is engaged with the step floor 8 on the left and right sides of the handle 15 so that the seedling box is fixed. This is the part where the seedling box can be leaned against. Also,
44 ', 44' are step floors 8 on the left and right sides of the seat 9
This part is used to fix part of the seedling box. Also, this fixed part
44, 44, 44 'and 44' are provided on the step floor 8 near the seat 9 and near the handle 15. Therefore, even when the seedling box is placed in engagement with the fixed portion, the operator can easily pass the seat 9 of the step floor 8 or both sides of the handle 15. The seedling box fixing portions 44, 44, 44 ', 44' are, as one embodiment, concave portions integrally provided on the step floor 8 as shown in FIG. By fitting the short side of the end of the seedling box into this recess, the spare seedling box for replenishment can be placed on the side of the seat 9 or on the side of the post cover 34a below the handle 15. It has become. Reference numerals 46 ... denote leaf springs, and when the springs press against the bottom of the seedling box fitted to the fixing portions 44, the fitting of the fixing portions 44 of the seedling box to the concave portions does not rattle, making it difficult to remove easily. It becomes. Here, the fixing portions 44 are formed in the concave portions, but may be protrusions 44a that sandwich the seedling box as shown in FIG. Therefore, the riding type rice transplanter holds the seedling box holding portions 44, 44, 44 ', and 44' which hold the seedling box containing the seedlings in an upright posture inclined to the center in the lateral direction of the machine. Since the floor surface extending in the front-rear direction of the vehicle body of the step floor 8 is provided on the side portion and disposed outside the seedling box fixing portions 44, 44, 44 ', and 44' in the lateral direction of the body, the seedling box fixing portion is provided. 44, 44, 4
The seedling box containing the seedlings is held on the traveling vehicle body 1 by 4 'and 44', and the held seedling box largely blocks the floor surface extending in front and rear of the vehicle body on the left and right sides of the step floor 8. It does not hinder the movement of the worker on the step floor 8. Therefore, while minimizing the reduction in workability on the vehicle body, the replenishing seedlings can be mounted on the traveling vehicle body 1 with a simple configuration, and the body can be reduced in size and weight. Also, since the seedling box is held in the upright posture, there is a concern that the seedlings in the seedling box will be turned up and down compared to the horizontal posture, but in the present invention, the seedling box is held in a state inclined to the center in the left-right direction of the body. Therefore, compared to the upright posture, the seedlings in the seedling box are less likely to turn over and fall, and when the seedling box is held in a state where it is tilted in the front-rear direction of the aircraft, Although it is easy to fall down and fall, there is little worry about this point.

[Brief description of the drawings]

 The drawings are briefly described below. FIG. 1: A plan view showing the riding type rice transplanter of the embodiment. FIG. 2: A side view showing the riding type rice transplanter of the embodiment. FIG. 3: A front view showing a main part of the embodiment. FIG. FIG. 5: Front view showing the main part of another embodiment FIG. 6: Partial cross-sectional side view of the fuel tank FIG. 7: Plan view of the fuel tank FIG. FIG. 9: Cross-sectional side view of a part of another fuel tank. 1: Riding vehicle body 2: Seedling planting machine 8: Step floor 9: Seat 15: Handles 44, 44, 44 ', 44': Seedling box fixing part

Claims (1)

(57) [Claims] 1. A seedling box fixing portion 44, 44, 4 for holding a seedling box containing seedlings in a standing posture in a state of being inclined toward the center in the lateral direction of the machine.
4 ', 44' are provided on the left and right sides of the traveling vehicle body 1, and floor surfaces extending in the front and rear directions of the vehicle body of the step floor 8 are disposed outside the seedling box fixing portions 44, 44, 44 ', 44' in the lateral direction of the machine body. Riding rice transplanter characterized by being configured to be.