JP3519915B2 - Fender structure of riding rice transplanter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fender structure for a riding type rice transplanter, and more particularly, to a technique for facilitating seedling supply work to a seedling mounting table by devising scaffolding at the rear part of the fender.

[0002]

2. Description of the Related Art A rear wheel fender for a rice transplanter is an actual Kaihei 4-
Like the one disclosed in Japanese Patent No. 55214, the upper surface of the rear part of the fender located laterally of the driver's seat is formed flat, and not only the mudguard function, but also the operator at the time of supplying seedlings to the seedling mounting table. In general, it also has a function that can be used as a scaffold.

[0003]

During the seedling replenishing work, it is easy to replenish the seedlings as close to the seedling mounting table as possible with the spare seedlings. The foot is often placed near the end of the rest. However, as shown in the above-mentioned publication, if the foot is placed too far behind, there is a risk of stepping backward, so in reality, the foot should be placed after checking the rear end position of the fender. It was troublesome to check the scaffolding one by one when replenishing seedlings.

An object of the present invention is to improve the shape of the rear wheel fender so that it is not necessary to visually check the rear end position of the fender footrest for preventing the rearward stepping off, but the rear of the footrest is as much as possible. The point is to be able to position the foot near the edge.

[0005]

[Means for Solving the Problems]

[Structure] The first invention is a fender structure for a riding type rice transplanter in which a seedling planting device is connected to a rear portion of a body so as to be capable of moving up and down, and rear wheel fenders are provided on both left and right sides of a driver's seat. to form a mounting surface for placing the foot on its mounting surface rear, to form a convex portion for footrest projecting upward, placing the foot
The left and right sides are supported by the body frame below the bending projections.
A supporting member, and the foot rest on the supporting member.
It is characterized in that the rear end portion of the convex portion for use is connected .

A second aspect of the invention is characterized in that, in the first aspect, an auxiliary step is provided on the lateral outer side of the rear part of the fender, and the auxiliary step is supported by the support member .

A third aspect of the invention is characterized in that, in the second aspect, auxiliary steps are provided on each of the left and right sides of the fender, and the support members for supporting the auxiliary steps are made of a single material elongated in the left and right directions. .

[Operation] According to the structure of claim 1, since the foot-mounting convex portion projecting upward is formed at the rear end of the foot-mounting surface of the rear portion of the fender, the convex portion is formed. You can recognize that it is the rear end of the footrest mounting surface by the feeling when you step on,
It is no longer necessary to visually check the rear end,
The convex portion also provides a foot non-slip function.

In other words, by placing the foot so as to straddle the convex portion, it becomes possible to place the foot on the rearmost end of the fender while restricting backward stepping off. In addition, the rib forming action of the convex portion increases the mechanical strength of the mounting surface, and the mounting surface can be stably stepped on, or the plate thickness can be reduced to reduce the weight.

According to the second aspect of the present invention, since the auxiliary step is provided on the lateral outer side of the rear part of the fender, it is possible to more easily perform the replenishment work with both feet positioned at the rear end part of the fender, or the lateral step as compared with the conventional case. The body can be pushed out to the outside, and it becomes easy to replenish the seedlings on the left and right end strips in a multi-row planting model such as 8-row planting. Since the fender is attached to the support member that supports the auxiliary step, the single support member can support the two types of members, the fender and the auxiliary step, compared to the case where a dedicated support member is provided for each. It is possible to reduce points.

According to the third aspect of the invention, since the auxiliary steps provided on the left and right sides of the machine body are supported by the single material long on the left and right sides supported by the machine body frame, the auxiliary steps are supported for each of the left and right auxiliary steps. The number of parts can be reduced as compared with the case where a member is provided, the supporting member can be configured to be supported by both ends, and the weight can be reduced while increasing the supporting strength as compared with the case of supporting by a cantilever. Further, by arranging the support members on the left and right sides, it also serves to reinforce the body frame.

[Effect] The riding-type rice transplanter according to any one of claims 1 to 3,
(A) The mechanical strength of the mounting surface is improved, and while exerting the action of preventing backward stepping off, it is possible to put the foot as close to the rear end of the fender as possible without performing visual confirmation. It is possible to put the foot close to the rear end of the fender, and the seedling can be supplied from the position near the seedling mounting table behind which the foot is pushed as close as possible to the rear end of the fender so that the seedling supply work is easier. Could be provided.

In the fender structure according to claim 2,
(B) The presence of the auxiliary steps is advantageous for the seedling supply work to the right and left end strips of the seedling mounting table, and the auxiliary steps can be mounted while reducing the cost and weight by reducing the number of parts.

In the fender structure according to the third aspect, the structure in which the pair of left and right auxiliary steps is supported by a single member is used.
While contributing to the strength of the aircraft frame, the above effect (b)
There is an advantage that can be strengthened.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a seedling planting device 4, which is a planting part, is movably connected to the rear of a riding-type traveling machine body including a pair of left and right front wheels 1 and rear wheels 2 via a link mechanism 3. A rice planting machine with a mid-type fertilizer is configured by equipping the fertilizer applicator A at a position on the front side of the seedling planting device 4 and immediately after the driver's seat 67. Incidentally, 43 is a fertilizer stand for reducing the labor of supplying fertilizer to the fertilizer hopper 18.

In this rice transplanter, the power of the engine E mounted in the hood 5 of the traveling machine body is transmitted to the front wheels 1 via the front transmission case 6 and the traveling system transmission shaft 7 and the rear transmission case 8. It is a four-wheel drive type that is transmitted to the rear wheels 2 and is configured to steer the left and right front wheels 1 by operating the steering handle 10 of the boarding operation unit 9. Further, a PTO shaft 11 which is a planting system transmission shaft is extended rearward from the front transmission case 6, and the power is transmitted from the PTO shaft 11 to the seedling planting device 4 to travel in the field. However, it is structured so that seedling planting work can be performed.

The seedling planting device 4 is a hydraulic cylinder 1 for lifting and lowering.
With the expansion / contraction operation of 2, the lifting operation can be freely performed between the working position for planting the seedling, the lower end of which comes into contact with the field scene, and the rising position, which moves largely upward. Then, the seedling stand 14 that reciprocates laterally at a set pitch along the vehicle body lateral width direction with respect to the planting portion frame 13 connected and supported by the link mechanism 3,
A plurality of (six) planting mechanisms 15 for picking up seedlings one by one from the lower end of the seedling to be planted placed on the seedling stand 14 and planting them in the field, a grounding float for leveling the mud while grounding in the field It is configured in a 6-row planting format with 58 and the like.

The seedling placing section of the seedling placing table 14 is provided with a vertical feeding device 16 for feeding the seedlings placed at the end of the lateral movement stroke toward the planting mechanism 15 by a set amount for each planting article. Has been. The vertical feed device 16 is configured such that a belt with protrusions is wound around a pair of upper and lower pulleys, and the lower pulley is rotated by a predetermined amount by abutting action at the stroke end.

Although not described in detail in the structure of the vertical feed device 16, there is provided a vertical feed clutch (not shown) which can be switched between a state where the vertical feed operation is performed for every two threads and a state where the operation is stopped. It is provided. In addition, the ground contact float 58 is a groove for admitting fertilizer onto the mud surface at a position adjacent to the planting site of the seedling in each planting section so as to enter the mud layer toward the lower side of the ground contact surface. A grooving device 17 is provided to form the groove.

Next, the fertilizer application device A will be described. Figure 2
As shown in FIG. 2, the fertilizer application apparatus A is a three-row integrated fertilizer hopper 18 for storing powdered and granular fertilizer, a feeding mechanism 19 for feeding a predetermined amount of fertilizer from the fertilizer hopper 18, and a fertilizer feeding apparatus for feeding the fed fertilizer. No. 4 fertilizer hose (an example of a downflow path) 21 sent to the grooving device 17. The feeding mechanism 19 includes a funnel portion 18 for each row of the fertilizer hopper 18.
Located below a, multiple (6) corresponding to each planting line
It is provided. The fertilizer fed from each feeding mechanism 19 is configured to be forcibly transferred to each groove making device 17 through the fertilizer application hose 21 by the blower 20 blowing air.

As shown in FIG. 3, the feeding mechanism 19 is fitted inside the casing 22 so as to be integrally rotatable with the feeding shaft 23 while facing the bottom opening portion of the fertilizer hopper 18, and at the outer peripheral portion. Is provided with a feeding rotor 25 in which a plurality of concave portions 24 for entering fertilizer are formed at a predetermined pitch, and the fertilizer stored in the concave portions 24 as the feeding rotor 25 rotates is shaped like a funnel on the lower side. The guide portion 26 is configured to be guided downward. A brush 27 for scraping off is provided so that a predetermined amount can be stored in the recess 24.

The brush 27 is swingable around the horizontal axis P between the working position located on the outer peripheral surface of the feeding rotary member 25 and the fertilizer discharging position separated from the feeding rotary member 25, and the casing 22. In accordance with the switching operation of the switching operation tool 31 provided on the outer side of the side, it is integrally rocked and held at each position.

Each casing 22 in each of the plurality of feeding mechanisms 19 is supported by a vertical frame 29 that is fixedly erected from the machine frame F, and is fixedly supported by a horizontal frame 30 that extends in the lateral direction of the vehicle body. Feeding shaft 2
Reference numeral 3 designates each of the feeding rotary members 2 for each of the pair of feeding mechanisms 19.
5 is provided so as to be divided into three so as to rotate integrally, and two of the six feeding mechanisms 19 are fed out.
It is configured such that it can be driven and stopped separately for each.

The drive configuration of the feeding mechanism 19 will be described. As shown in FIG. 2, at a position on the rear side of the feeding mechanism 19 in a state in which the fertilizer application device A has a length substantially along the entire width direction along the lateral direction of the vehicle body and is rotatably supported at both end portions. A drive shaft 32 is arranged, and a one-way clutch 33 is provided at an intermediate portion of the drive shaft 32 in the lateral width direction. The operation arm 34 of the one-way clutch 33 and the bevel gear mechanism 2
A rotary arm 36 mounted on a lateral transmission shaft 35 which is rotationally driven by a PTO shaft 11 via 8 is pivotally connected by an interlocking rod 37, and the operation arm 34 swings as the rotary arm 36 rotates. With the one-way clutch 33, the drive shaft 32 is intermittently rotated only in a predetermined direction.

Then, the drive shaft 32 and each of the three feeding shafts 2
3 is configured so as to be interlocked with each other by the engagement of gears 39 and 40 attached to each of them, and both shafts 3
A fertilizer clutch 38 is provided between 2 and 23 so that the power can be turned on and off independently.

As shown in FIG. 2, a circular cylindrical blower pipe 45 is arranged on the front side of the casing 22 so that its longitudinal direction is along the lateral direction of the vehicle body, and support brackets 46 are provided on both end sides. Is provided in a state of being supported by the horizontal frame 30, and the wind of the blower 20 provided at one lateral end of the blower pipe 45 is supplied into the blower pipe 45.

As shown in FIG. 3, a fertilizer supply section 51 is formed which communicates with the lower end outlet 50 of the funnel-shaped guide section 26 and opens rearward of the machine body, and the fertilizer hose 21 is inserted therein. An air supply unit 52 that connects the lower end outlet 50 and the inside of the blower pipe 45 is formed on the front side of the fertilizer supply unit 51. The air supply unit 52 and the fertilizer supply unit 51 are connected to the front and rear of the vehicle body. It is formed so as to extend in a substantially straight line along the direction. Further, below the lower end outlet 50, a discharge portion 54 for forming a discharge path 53 that connects the discharge outlet 48 and the inside of the discharge pipe 48 is formed.
The other end of the blower pipe 45 is usually closed by a lid 45a that can be opened and closed.

The path switching plate 55, which is switchable between a supply operation state in which the granular fertilizer fed out from the feeding mechanism 19 is guided to the fertilization hose 21 and a discharge state in which it is guided to the discharge path 53, is fed to the feeding mechanism. It is provided corresponding to each of the nineteen. The path switching plate 55 is pivotally supported around the left and right axis X, and can be switched between a supply position and a discharge position by operating a switching lever (not shown) provided outside the guide portion 26. Is. The supply position is a position where the discharge path 53 is closed and the fertilizer supply section 51, that is, the fertilizer supply hose 21 and the blower pipe 45 communicate with the lower end outlet 50, and the discharge position is the internal passage of the fertilizer supply section 51. Is a position where the discharge path 53 and the blower pipe 45 communicate with the lower end outlet 50.

A discharge pipe 48 for guiding and discharging the discharged fertilizer toward the lower front side of the machine is provided in each discharge unit 54 so as to be in communication with each discharge pipe 48.
As shown in Fig. 3, each of the three pipes on the left and right sides has one large-diameter merging conduit 4 at the lower side of the fertilizer guide direction.
The fertilizer is discharged from the common fertilizer discharge port 49 so that the fertilizer is discharged from the common fertilizer discharge port 49.

When fertilizer is applied during seedling planting work, the path switching plate 55 is switched to the supply position and the blower 20 is used.
Of the fertilizer fed out by a predetermined amount from the feeding mechanism 19 is fed from the lower end outlet 50 through the fertilizer supply part 51 and the fertilizer hose 21 toward the grooving device 17 to be supplied to the field. To do.

After the planting work is completed, the fertilizer hopper 1
When recovering the fertilizer remaining in 8, switch lever 56
To the discharging position, the brush 27 in the feeding mechanism 19 is switched to the fertilizer discharging position separated from the feeding rotary member 25 to discharge the fertilizer, and the blower 20 blows air to discharge the discharged fertilizer at the lower end outlet. After passing through the discharge route 53 and the discharge pipe 48 from 50, it is discharged from the fertilizer discharge port 49 to the outside. Therefore, the fertilizer can be collected by arranging the collection container or the like corresponding to the fertilizer discharge port 49.

As shown in FIG. 2, six gear-like gears that can be engaged with and disengaged from the gear-like rotation adjusters 70 that operate the feed-out amount adjusting mechanism (not shown) for each feed-out mechanism 19. The drive rotating body 71 is connected to a rotatable operation rod 72. By the sliding movement of the operating rod 72 in the left direction, each drive rotating body 71 and each rotation adjusting tool 70 are engaged, and by the sliding movement of the operating rod 72 in the right direction, each driving rotating body 71 and each rotation. The non-acting state in which the engagement with the adjusting tool 70 is released is configured to be able to appear. At the right end of the operation rod 72, a handle 75 for rotating operation is provided, and it acts on the drive shaft 32 to fix the payout shaft 23 when adjusting the payout amount of the total payout mechanism 19 by the handle 75. Switching lever 76
Is equipped with.

Next, the structure of the rear wheel fender B will be described. As shown in FIGS. 4 to 6, a rear wheel fender B
Is a resin integral member including the mudguard portions 41, 41 of the left and right rear wheels 2, 2 and a floor rear end portion 44 corresponding to the rear portion of the floor step 42. 67 is arranged. Left and right mudguards 41, 4
The rear part of 1 is a mounting surface 47 for placing a foot which is substantially horizontal at a position which rises upward from the surface of the floor step 42.
And a convex portion 56 protruding upward is formed at the rear end of the mounting surface 47.

That is, when the fender B is molded, the mounting surface 4
7. The rear end is raised to integrally form the convex portion 56, and has the function of restricting the foot behind the mounting surface 47 so that it is difficult to step off the foot, and the function of improving the strength of the mounting surface 47.
On the mounting surface 47, the non-slip material 5 is provided so that the feet are not slippery.
7 is attached.

Further, as shown in FIGS. 5 and 7, the fender B
Auxiliary steps 60 are provided on both the left and right lateral outsides of the mounting surface 47, and the left and right auxiliary steps are provided at both ends of a support pipe (an example of a support member) 61 that is a single long material supported by the body frame F. While 60 and 60 are attached and supported,
The rear portion of the fender B is attached to the support pipe 61.
The auxiliary step 60 is a rectangular frame 60 made of a plate material in a plan view.
In a, the front-to-back steel strip 60b and a plurality of left-to-right steel strips 60
It is formed by fixing c and is fixed to the support pipe 61 by welding. Further, the front pipe case 6 and the rear gear case 8 are connected to each other to reinforce the fuselage frame F, and the bracket 60A fixed to one of the horizontal steel strips 60c of the auxiliary step 60 is reinforced. A pipe 65 is installed to improve the strength of the auxiliary step 60.

The support pipe 61 is bolted to the upper part of the machine body frame F via a pair of left and right support stays 61a, 61a fixed to the support pipe 61. And fender B
The mounting seats 62, 62 provided at the rear end of the support pipe 6
It is bolted to one bracket 63, 63 in the front-back direction. In this rice transplanter, the fertilizer application A is also removed from the standard specifications, and in this case, the space between the fender B and the seedling stand 14 is exposed. Effective as a non-slip foot.

In FIG. 4, 66 is a spare seedling stand and 68
Is a pre-extension step for supporting the spare seedling stand 66, and 69 is a boarding / alighting step.

[Brief description of drawings]

[Figure 1] Overall side view of rice transplanter

[Figure 2] Rear view of fertilizer application

[Fig.3] Vertical side view of the fertilizer supply section

[Figure 4] Overall plan view of rice transplanter

FIG. 5 is a side view showing a fender and auxiliary steps.

FIG. 6 is a sectional view showing the shape of the rear part of the fender.

FIG. 7 is a plan view showing the structure of an auxiliary step.

[Explanation of symbols] 4 Seedling planting equipment 47 Mounting surface 56 convex 60 auxiliary steps 61 Support member 67 Driver's seat B Fender F Airframe frame

─────────────────────────────────────────────────── --Continued from the front page (56) References JP-A-8-308330 (JP, A) JP-A-6-253623 (JP, A) JP-A-8-126418 (JP, A) Actual development Sho-61- 31011 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) A01C 11/02 B62D 25/20 B62D 25/22 B62D 49/00

Claims (3)

(57) [Claims] 1. A fender structure for a riding-type rice transplanter, wherein a seedling planting device is connected to a rear part of an airframe so that it can be moved up and down, and rear wheel fenders are provided on both left and right sides of a driver's seat. A footrest mounting surface is formed, and a footrest protrusion protruding upward is formed at the rear end of the footrest surface, and the body frame is located below the footrest protrusion.
A long support member is provided on the left and right supported by the
A fender structure for a riding-type rice transplanter in which a rear end portion of the foot-mounting convex portion is connected to a member . 2. An auxiliary step is provided on a lateral outer side of a rear portion of the fender, and the auxiliary step is provided on the supporting portion.
The fender structure for a riding-type rice transplanter according to claim 1, which is supported by a lumber . 3. The auxiliary steps are provided on each of the left and right sides of the fender, and the support members for supporting these auxiliary steps are provided .
The fender structure for a riding-type rice transplanter according to claim 2, wherein the fender structure is made of a single material that is long in the left and right directions.