JPH111182A - Floor structure of riding rice transplanter - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To increase the rigidity of a floor and simplify the shapes and structures of the floor and support members to reduce costs. SOLUTION: It is formed into a substantially hollow plate shape composed of an upper surface plate and a lower surface plate by blow molding means made of synthetic resin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor structure of a riding rice transplanter.

[0002]

2. Description of the Related Art Conventionally, sheet metal or FRP molded products are mainly used for floor structures of riding rice transplanters.

Further, a rising portion is provided below the front end of the seat, and the tip of an operating lever extending from the rear of the rising portion is inserted through the rising portion and protrudes to the outside. An operator can operate the operating lever by grasping it.

[0004]

However, since the floor is a sheet metal or FRP molded product, the shape that can be formed is limited. Therefore, a large number of fixtures are fixed to the support frame to support the floor. Then, the floor is fixed via the mounting fixture.

Further, there is a possibility that the tip of the operating lever projecting to the outside through the rising portion may come into contact with the operator's foot and cause an erroneous operation. If the projecting amount of the operating lever is reduced, the operation becomes difficult. There was a problem.

[0006]

Therefore, according to the present invention, in a floor structure of a riding rice transplanter having a floor mounted on a floor stay attached to a body frame, the floor is formed by blow molding means made of synthetic resin. And a floor structure of a riding rice transplanter characterized by being formed in a hollow substantially plate shape composed of an upper surface plate and a lower surface plate.

The present invention has the following features.

The floor has a ridge bulging downward on the lower surface plate, and the ridge is mounted on a floor stay.

[0009] The floor has a ridge bulging downward on the lower surface plate, and the floor is supported by a floor stay via the lower surface of the ridge.

[0010] The floor has a plurality of compression portions formed near the side portions of the ridge.

The floor has a stay fitting groove formed in the lower surface plate, and a floor stay for supporting the floor is fitted into the stay fitting groove.

In the floor, a plurality of compression portions are arranged along a center line of the stay fitting groove.

The rising portion of the floor located below the front part of the seat is formed into a hollow substantially plate-like shape composed of a front plate and a rear plate by blow molding means made of synthetic resin, and extends vertically in the front plate. The front plate and the rear plate are bonded and integrated, and a lever insertion hole is formed along the center line of the groove, and the distal end of the operating lever is inserted through the lever insertion hole. Exposed to the outside, and the tip of the operating lever must not protrude forward from the front panel.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A hollow substantially plate-like floor composed of an upper plate and a lower plate is formed by blow molding of a synthetic resin, and a ridge bulging downward is formed on the lower plate. The lower surface of the support frame is brought into contact with the upper surface of the support frame to support the floor. Further, a large number of compression portions are formed close to the ridges to increase the rigidity of the floor.

Further, it is possible to form a stay fitting groove in the lower surface plate at a position where it comes into contact with the support frame, and to fit the support frame into the stay fitting groove to facilitate positioning of the floor. According to the present invention, a plurality of compression portions are formed along the center line of the stay fitting groove so as to increase the rigidity of the floor.

Further, a vertical groove extending in the vertical direction is formed in the front plate of the rising portion extending below the seat, and a lever insertion hole is formed along the center line of the groove, and the lever insertion hole is formed. The tip of the operation lever is exposed to the outside through the hole, and
The tip does not protrude forward than the front panel, so that the operator's foot does not touch the tip of the operation lever,
Moreover, manual operation is facilitated.

[0017]

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a riding rice transplanter A having a floor F having a structure according to the present invention.
The planting device D is connected to the rear of the self-propelled traveling body B via a three-point link mechanism C so as to be able to move up and down and tilt left and right.

The running vehicle body B has left and right front wheels 2L and 2R mounted on the front left and right sides of the body frame 1 so as to be steerable and rotatable. , 3R, and the vehicle body side hitch 8 for connecting the prime mover unit 4, the driving unit 5, the seat 6, the lifting mechanism 7, and the planting device D is arranged on the upper surface of the vehicle body frame 1 from the front in the above order. The power from the prime mover unit 4 is transmitted to the left and right front and rear wheels 2L, 2R, 3L, 3R via the continuously variable transmission 9, the transmission case 10, and the front and rear differential cases 11, 12, and is erected on the operation unit 5. Left and right front wheels 2L, 2R by turning operation of steering wheel 13
To steer.

The three-point link mechanism C comprises a top link 14 and a left and right lower link 15. The front ends of the top link 14 and the left and right lower link 15 are pivotally connected to the rear surface of the vehicle-side hitch 8 so as to be rotatable. The rear end is pivotably connected to the planting-side hitch 16 to form a parallel link mechanism.
By a lifting mechanism (not shown) provided at the rear of the planting device D
Is raised and lowered. In the figure, 19 is a spare seedling stand, E
Is a side-strip fertilizer with both ends foldable forward.

In the planting device D, a transmission case 22 also serving as a planting section frame is pivotally attached to the planting side hitch 16 via a pivot 21 extending in the front-rear direction so as to be tiltable left and right.
A seedling table 23 inclined forward and rearwardly high is disposed above the seedling table 22, and a planting claw driven by the transmission case 22 near the lower end edge of the seedling table 23.
The arrangement is such that the seedlings placed on the seedling mounting table are planted on the rice field by rotating the planting claws.

A left-right tilt cylinder 26 is interposed between a stay 25 extending upward from the upper surface of the planting side hitch 16 and the seedling mounting table 23. The planting device D is inclined left and right with respect to the running vehicle body B. In the figure, 27 is a center float, and 28 is a side float.

2 to 4 show the vehicle body frame 1, the floor stay 30, and the floor F.
Is formed in a substantially ladder shape in plan view by a square pipe.

The floor stay 30 is formed in a substantially frame shape by a round pipe, and extends from the front end of the traveling vehicle body B to the rear portion of the traveling vehicle body B through the left and right sides of the motor unit 4 from the front end of the traveling vehicle body B. And is fixedly provided on the upper surface of the body frame 1 with a plurality of stay supports 31 interposed therebetween.

The floor F is stretched on the upper surface of the floor stay 30 from the left and right sides of the front end of the motor unit 4 to the lower part of the front end of the seat 6. It is continuous with the rear fender part 33.

The floor F, the rising portion 32, and the left and right rear fender portions 33 are formed by blow molding using a synthetic resin such as ABF as a continuous upper plate 34 and a front plate 50 and a continuous lower plate 35 and a rear plate. A ridge 36 having a substantially trapezoidal cross section protruding downward is integrally formed in a hollow substantially plate-like shape made of a face plate 51, and protrudes downward at a position in contact with the upper surface of the floor stay 30 of the floor F.
And a large number of truncated cone-shaped recesses are formed in the lower surface plate 35 of the floor F in the vicinity of the ridges 36 to form the upper surface plate 34 of the floor F.
A large number of compression portions 37 are formed by bonding and integrating the bottom plate 35 with the lower plate 35. In the figure, reference numeral 38 denotes a non-slip projection.

As described above, since the floor F is blow-formed, the shapes and positions of the convex portions and concave portions can be freely formed.
Therefore, the shape of the floor stay 30 and the floor fixture can be simplified.

Further, since the ridge 36 is formed at a position in contact with the floor stay 30, the load applied to the upper surface of the floor F is transmitted to the floor stay 30 via the ridge 36, and Since the compression portions 37 are formed on both sides, the displacement between the upper surface plate 34 and the lower surface plate 35 is prevented, and the floor F
And the floor F can be prevented from being deformed.

FIG. 5 shows a floor F1 of another embodiment. A stay fitting groove 40 having a substantially trapezoidal cross section is formed at a position where the lower surface plate 35 of the floor F1 contacts the floor stay 30. A large number of compression portions 37 are formed along the center line of the fitting groove 40.

As described above, since the stay fitting groove 40 is formed in the lower surface plate 35 at a position where it comes into contact with the floor stay 30, the positioning when the floor F is mounted on the upper surface of the floor stay 30 can be performed. A large number of compression portions 37 are provided along the center line of the stay fitting groove 40 without using a member or the like for leverage.
Is formed, the rigidity of the floor F can be increased and deformation can be prevented.

FIGS. 6 and 7 show the rising portion 32. The rising portion 32 extends from the rear end of the upper surface of the floor F to below the front end of the seat 6 in a slightly inclined state. ,
4 extending vertically on the front plate 50 just below the seat 6
The groove 51 of the groove is formed, the front plate 50 and the rear plate 51 are bonded and integrated, and a lever insertion hole 53 extending vertically is formed at the center of each groove 52, and each lever insertion hole 53 is formed. To expose the tip of the operation lever 54 to the outside.
Is prevented from protruding forward from the front plate 50.

As described above, since the distal end of the operating lever 54 is exposed in the concave groove 52 formed on the surface of the rising portion 32, the operator grips the distal end of the operating lever 54 in the concave groove 52. The operation lever 54 can be operated, and since the operation lever 54 does not protrude forward from the front plate 50 of the rising portion 32, the operator's feet are prevented from contacting the operation lever 54, Driving is easier and safety is improved. Further, since the front plate 50 and the rear plate 51 around the lever insertion hole 53 are bonded and integrated, the rigidity of the rising portion 32 is prevented from being reduced. In the figure, 55 is the operation pedal, 56
Is a pedal insertion hole, a concave groove 52 is formed in the front plate 50 similarly to the lever insertion hole 53, and the front plate 50 and the rear plate 51 around the pedal insertion hole 56 formed in the concave groove 52 are formed. Adhesive integrated.

[0033]

According to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, in a floor structure of a riding rice transplanter having a floor mounted on a floor stay attached to a vehicle body frame, the floor is formed by blow molding means made of synthetic resin as a material. By the time when it is formed into a hollow substantially plate shape composed of a lower surface plate, a lightweight and highly rigid floor can be formed, and the limitation of the formable shape is greatly relaxed, so that the floor is directly supported by the support frame. , The floor support structure can be simplified, and weight reduction and cost reduction can be realized.

According to the second aspect of the present invention, the floor is formed with a ridge that swells downward on the lower plate, and the ridge is mounted on the floor stay, so that the upper plate and the lower plate are separated from each other. The displacement is prevented, and the rigidity of the floor can be increased.

According to the third aspect of the present invention, the floor is formed by forming a ridge bulging downward on the lower surface plate, and supporting the floor on the floor stay via the lower surface of the ridge. Since the lower surface and the upper surface of the support frame can be brought into close contact with each other, the cost can be reduced without increasing the number of fixtures or complicating the shape of the support frame.

According to the fourth aspect of the present invention, the floor is formed with a plurality of compression portions adjacent to the side portions of the ridge, so that the upper plate and the lower plate near the ridge where the load is concentrated are displaced. Is prevented, and the rigidity of the floor can be effectively increased.

According to the fifth aspect of the present invention, the floor is easily positioned by forming a stay fitting groove in the lower surface plate and fitting a floor stay for supporting the floor into the stay fitting groove. Therefore, the shapes of the attachment and the support frame can be simplified to reduce the cost.

According to the sixth aspect of the present invention, the floor has a plurality of compression portions arranged along the center line of the stay fitting groove, so that the rigidity of the floor can be increased.

According to the seventh aspect of the present invention, the rising portion of the floor located below the front portion of the seat is formed in a substantially hollow plate shape composed of a front plate and a rear plate by blow molding means made of synthetic resin. A concave groove extending vertically is formed on the front plate, the front plate and the rear plate are bonded and integrated, and a lever insertion hole is formed along the center line of the concave groove, and the lever insertion hole is formed. Exposing the tip of the operation lever to the outside,
In addition, since the tip of the operating lever does not protrude forward from the front plate, manual operation of the operating lever is easy, but the tip of the operating lever contacts the operator's foot and malfunctions. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a side view of a riding rice transplanter having a floor according to the present invention.

FIG. 2 is a partial cross-sectional side view of a vehicle body frame, a support frame, and a floor.

FIG. 3 is a plan view of a floor.

FIG. 4 is a sectional side view of a support frame and a floor.

FIG. 5 is a cross-sectional side view of a floor according to another embodiment.

FIG. 6 is a front view of a rising portion.

FIG. 7 is a sectional view taken along line II in FIG. 6;

[Explanation of symbols]

 A Passenger rice transplanter F Floor 6 Seat 30 Floor stay 32 Stand-up part 34 Top plate 35 Bottom plate 36 Ridge 37 Compression part 40 Stay fitting groove 50 Front plate 51 Rear plate 52 Concave groove 53 Lever insertion hole 54 Operation lever

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Junjiro Fujimoto 1-32 Chaya-cho, Kita-ku, Osaka-shi, Osaka Inside Yanmar Agricultural Machinery Co., Ltd.

Claims (7)

[Claims] 1. A floor structure of a passenger rice transplanter having a floor (F) mounted on a floor stay (30) mounted on a vehicle body frame (1), wherein the floor (F) is blow molded using synthetic resin as a material. A floor structure of a riding rice transplanter, wherein the floor structure is formed into a substantially hollow plate shape comprising an upper surface plate (34) and a lower surface plate (35) by means. 2. The floor (F) is provided with a plurality of recesses in the lower plate (35) to form a compression part (37) in which the upper plate (34) and the lower plate (35) are partially integrated. The floor structure of a riding rice transplanter according to claim 1, wherein a plurality of the rice transplanters are formed. 3. The floor (F) has a ridge (36) bulging downward on the lower plate (35), and the ridge (36) is attached to the floor stay.
(30) The floor structure of a riding rice transplanter according to claim 2, wherein the floor structure is mounted on the top. 4. The floor structure of a riding rice transplanter according to claim 3, wherein the floor (F) has a plurality of compression portions (37) formed near the side portions of the ridges (36). . 5. The floor (F) has a stay fitting groove (40) formed in the lower plate (35), and a floor stay (30) for supporting the floor (F) inside the stay fitting groove (40). The floor structure of a riding rice transplanter according to claim 1, wherein 6. The floor of a riding rice transplanter according to claim 5, wherein the floor (F) has a plurality of compression portions (37) arranged along the center line of the stay fitting groove (40). Construction. 7. A floor (F) located below the front part of the seat (6).
Of the front plate (50) and the rear plate (51) is formed in a substantially hollow plate shape by blow molding means made of a synthetic resin, and is vertically formed on the front plate (50). Elongated groove (52)
The front plate (50) and the rear plate (51) are bonded and integrated, and the lever insertion hole is formed along the center line of the concave groove (52).
(53), and the operating lever is inserted through the lever insertion hole (53).
Exposing the tip of (54) to the outside
The floor structure of a riding rice transplanter, characterized in that the tip of (54) does not protrude forward from the front plate (50).