JPH09103135A - Sulky rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sulky rice transplanter improved in working conditions through mitigating noise and vibration transmitted from a floor board to the driving section, having such a design that the floor board is connected via vibrationproofing rubbers to the frames of the self-propelled machine body. SOLUTION: A step for getting on/off and a rear wheel fender are fixed on the frames 23, 24, 25, 26, 27, 29 of the self-propelled machine body and a floor board 13 is provided as a separate component from the step for getting on/off and the rear wheel fender and connected, via vibrationproofing rubbers 33, to the frames 22, 23, 28 of the self-propelled machine body. It is preferable that the vibrationproofing rubbers 33 be situated on the respective front and rear sides of the right and left end sides of the floor board 13 and the respective front and rear pairs of the vibrationproofing rubbers 33 on the right and left sides be provided in a mutually shifted manner in the transverse direction of the floor board 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear part of a self-propelled machine equipped with a boarding type operation part so that a seedling planting device can be moved up and down freely, and the boarding / unloading equipment located on the front side of the machine on the floor plate of the operation part. Step, a riding-type rice transplanter equipped with rear wheel fenders located on the side of the driving section.

[0002]

2. Description of the Related Art The above-mentioned rice planting machine allows the front end side of the self-propelled airframe to approach the ridges and stop to use the step for getting on and off so that the ridges and the airframe can be moved back and forth without stepping into the field. It was done. In addition, in the above rice planting machine, when supplying seedlings to the seedling planting device, ride on the rear wheel fender so that the hand can easily reach the side edge of the seedling mount far from the driver's seat to supply seedlings. There are many things to be done. For this reason, conventionally, both the step for getting on and off and the rear wheel fender are fixed to the body frame so that the step is hard to sway and a stable ride is possible. Then, the floor plate of the driving unit is fixed to the body such as being connected to the step for getting on and off or being supported by the step of being continuously provided to the rear wheel fender.

[0003]

Conventionally, vibrations and noises generated from a transmission structure or an engine located below or near the driving section or the engine have been easily transmitted from the floor plate to the driving section.
An object of the present invention is to suppress vibrations and noises transmitted from the floor plate to the driving section as much as possible while allowing stable riding on the step-on / off steps and the rear wheel fenders.

[0004]

The constitution, operation and effect of the invention according to claim 1 are as follows.

[Structure] A seedling planting device is connected to a rear part of a self-propelled machine equipped with a boarding type operation part so as to be able to move up and down, and a step for boarding / alighting located on the front side of the machine on the floor plate of the operation part, the operation A riding type rice transplanter equipped with rear wheel fenders located on the lateral side of the section, wherein the step for getting on and off and the rear wheel fenders are fixed to a body frame of the self-propelled aircraft, and the floorboard is the step for getting on and off. Further, it is formed as a separate component from the rear wheel fender, and is connected to the body frame of the self-propelled body via a vibration-proof rubber.

[Operation] The boarding / alighting step and the rear wheel fender are fixed to the body frame so that the boarding frame does not sway easily and can be boarded stably. The floor plate is connected via a vibration proof rubber to reduce the vibration and noise transmitted to the driving section.

[Effect] It is possible to stably get on and off the step-on / off steps and the rear wheel fender to easily move back and forth between the ridges and the machine body, and also to easily replenish seedlings to the lateral end of the seedling stand. For that reason, it is possible to obtain an excellent driving environment in which the transmission of vibrations and noises from the floor plate to the driving unit is mitigated.

The structure, operation and effect of the invention according to claim 2 are as follows.

[Configuration] In the configuration of the invention according to claim 1, the anti-vibration rubber is located on the front side and the rear side of each of the left and right end sides of the floor plate, and the pair of front and rear anti-vibration rubbers on each of the left and right end sides is the above-mentioned The floor plate is misaligned in the left-right direction.

[Operation] Even when a load is applied to the end of the floor plate such as standing on the end of the floor plate to get on and off the driver's seat, the pair of front and rear anti-vibration rubbers will move the floor plate in the left and right directions. In order to support the floor plate, the pair of front and rear anti-vibration rubbers are linearly arranged along the front-rear direction of the machine body. Compared to a case in which a pair of front and rear anti-vibration rubbers are arranged in a straight line along the longitudinal direction of the machine body, a plurality of anti-vibration rubber rows are provided in the left-right direction of the floorboard, and thus the required number of anti-vibration rubbers and the time required for assembling the floorboards are reduced.

[Effects] Since the floor plate is supported via the anti-vibration rubber, it is difficult to bend, and an excellent operating part in which the transmission of vibrations and noise is mitigated can be obtained in an excellent state of the floor structure. Moreover, the floor board can be easily assembled and can be obtained at a relatively low cost.

The structure, operation and effect of the invention according to claim 3 are as follows.

[Structure] In the structure of the invention according to claim 2, a central anti-vibration mechanism which is uncoupled to the center portion of the floorboard in the left-right direction in an uncoupled state and is coupled to the body frame of the self-propelled aircraft. Equipped with rubber.

[Operation] Even when a foot is placed on the center side of the floor plate, the central anti-vibration rubber supports the floor plate so that the floor plate is not easily bent even in the central portion. The central anti-vibration rubber works just by connecting it to the fuselage frame without connecting to the floorboard.

[Effect] The floor plate is less likely to bend over the entire area, and a more excellent operating part in terms of floor structure can be obtained. Moreover, it can be easily assembled without connecting the central anti-vibration rubber to the floor plate.

The structure, operation and effect of the invention according to claim 4 are as follows.

[Configuration] In the configuration of the invention according to claim 1, the anti-vibration rubber is located on the front side and the rear side of each of the left and right end sides of the floor plate, and is not connected to the center portion of the floor plate in the left-right direction. And a central anti-vibration rubber which is connected to the body frame of the self-propelled body.

[Operation] Even if a load is applied to either the left or right end or the central part by standing on the end of the floor plate to get on or off the driver's seat or placing a foot on the center side of the floor plate, the left and right end sides are protected. The vibration proof rubber and central vibration proof rubber support the floor board so that it is hard to bend. The central anti-vibration rubber works just by connecting it to the fuselage frame without connecting to the floorboard.

[Effect] It is possible to obtain an excellent operating section in which the floor plate is less likely to flex over the entire area and the transmission of vibration and noise is mitigated in terms of floor structure. Moreover, it can be easily assembled without connecting the central anti-vibration rubber to the floor plate.

The structure, operation and effect of the invention according to claim 5 are as follows.

[Structure] In the structure of the present invention according to claim 1, 2 or 4, the front end portion of the floor board is connected to the rear end portion of the boarding / alighting step so as to overlap the rear end portion. At the same time, an elastic seal material is present between the front end portion and the rear end portion.

[Operation] It is possible to prevent the noise from being generated by the contact between the floor plate and the step for getting on and off due to the vibration caused by the support of the floor plate by the rubber vibration proof, by the contact prevention by the elastic seal material. Moreover, the connection between the floor board and the step for getting on and off and the elastic sealing material can prevent noise, hot air, and the like from entering between the floor board and the step for getting on and off.

[Effect] An even better operating environment can be obtained in terms of measures against the clearance between the floor plate and the step for getting on and off.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a pair of left and right drivable front wheels 1, 1 and rear wheels 2, 2,
Preliminary seedling mounts 4 arranged on both sides of the engine hood 3 located on the front end side of the machine body, a boarding type driving section 6 having a driving seat 5, and rear wheel fenders 7 located on both sides of the driving section 6. , At the rear of the self-propelled vehicle equipped with side stepping steps 8 which are arranged on both sides of the driving section 6 for getting on and off the driving section 6 and are also used as front wheel fenders,
The seedling planting device 11 is configured so as to be moved up and down through a link mechanism 10 which is vertically swung by a lift cylinder 9, and the self-propelled machine powers the seedling planting device 11 by a rotating shaft 12. Configured to communicate,
A riding type rice transplanter is configured.

A horizontal plane portion 7a is provided on the upper surface side of each of the pair of left and right rear wheel fenders 7, and the seedling planting device 11
When replenishing seedlings, the worker rides on the horizontal surface portion 7a,
It is possible to allow the hand to easily reach the lateral end side of the seedling planting device 11a of the seedling planting device 11 away from the operation unit 6.

As shown in FIG. 2, the engine hood 3
A front boarding / alighting step 14 arranged on the front side of the body of the floor plate 13 of the driving section 6 is provided on both lateral sides of the vehicle. In this front step 14 for getting in and out, the front end side is brought closer to the ridge at the ridge to stop the vehicle, and is used to pass between the engine bonnet 3 and the spare seedling placing table 4 and thereby the space between the ridge and the body. It allows you to move back and forth.

Of the pair of left and right rear wheel fenders 7, 7 and side riding steps 8, 8, the left rear wheel fender 7 and side riding step 8 and the right rear wheel fender 7 and side riding step Each of 8 is made of fiber reinforced plastic in one piece. The pair of left and right front boarding steps 14 and 1
The front step 14 on the left side of 4 is made of a sheet metal rear step portion 14a having a notch 14c through which the traveling clutch pedal 15 passes, and a sheet metal sheet constructed to be bolted to the rear step portion 14a. Is formed by the front step portion 14b. The right front boarding / alighting step 14 of the pair of left and right front boarding / alighting steps 14, 14 is a sheet metal rear step part 14a having a notch 14d through which a brake pedal 16 for traveling and steering is inserted, This rear step part 14
a front step portion 14b made of sheet metal configured to be bolted to a. The floor plate 13 of the driving unit 5 is made of a sheet metal formed as a separate component from the left and right front boarding / alighting steps 14, 14, the side boarding / alighting steps 8, 8 and the rear wheel fenders 7, 7. The upper surface of each of the pair of front and rear steps 14 and 14 and the floor plate 13 is formed with a rubber sheet as a non-slip surface with unevenness.

The rear wheel fender 7, the step 8 for getting on and off the side, the step 14 for getting on and off the front, and the floor plate 13 are attached to the self-propelled vehicle by the attachment structure shown in FIG.

That is, the engine connecting portion 21a is provided on the front end side.
A first frame 21 in the machine front-rear direction, a pair of left and right second frames 22, 22 connected in the rear end side of the first frame 21 in the machine front-rear direction, both second frames 22,
No. 22 for the traveling mission M, which is connected to the rear end side,
A first horizontal frame connecting frame 27 connected to the frame 21, a second horizontal connecting frame 28 connected to the front ends of the pair of left and right second frames 22, 22 and a second pair of left and right frames. The third connecting frame 2 in the lateral direction of the airframe, which is connected to the rear end side of each of the frames 22 and 22.
9, a pair of left and right third frames 23 in the front-rear direction of the machine body, which are connected to the first frame 21 and the second frame 22 via the first to third connection frames 27, 28, 29,
The front end side of the pair of left and right third frames 23, 23 and the first
Of the fourth frame 24 connected to the front end side of the frame 21, the fifth frame 25 in the machine lateral direction connected to the rear end of the traveling mission M, and the pair of left and right third frames 23, 23. Third frame 2 on the left side
3, the left side sixth frame 26 connected to the front end side of the third side frame 3, the end portion of the left side third connecting frame 29, and the left end side portion 25a of the fifth frame 25;
The right side sixth frame 23 connected to the front end side of the right side third frame 23, the end portion of the right side third connecting frame 33, and the right end side portion 25b of the fifth frame 25. The frame 26 forms the body frame 20 of the self-propelled body.

The left and right rear wheel fenders 7 and the step 8 for getting on and off the side are the left end side portion 25 of the fifth frame 25.
a or the right end side portion 25b, the left or right side third connecting frame 29, and the left or right side sixth frame 26, and the fifth frame 25
By connecting to the 6th frame 26, etc. with bolts,
The fifth frame 25 and the sixth frame of the body frame 20
It is fixed to the frame 26 and the third connecting frame 29.

The left and right front boarding / alighting steps 14 include a front end side of the third frame 23 on the left side or the right side and a fourth side.
Left part 24a or right part 24b of frame 24
And the left end side portion 27a or the right end side portion 27b of the first connection frame 27, and bolted to the fourth frame 24 or the like, so that the third frame 23 and the fourth frame 24 of the machine body frame 20 are connected. It is fixed to the first connecting frame 27.

The floor plate 13 of the operating unit 5 has a vibration isolating rubber 33 arranged at a total of five positions, namely, a front side and a rear side on the left end side of the floor plate 13, a front side and a rear side on the right end side, and a central portion in the left-right direction and the front-rear direction. ，
It is supported by the body frame 20 via 34. Outer anti-vibration rubber 33 of the anti-vibration rubbers 33, 34 located on the left and right end sides of the floor plate has washer portions 35 on both end sides as shown in FIG.
It is made of a rubber block having a connecting bolt 35 connected by adhesion at a. The connecting bolt 35 on one end side is a nut 3
6 and the connection bolt 3 on the other end side connected to the floor plate 13
5 by the nut 36 and the second connecting frame 28,
Alternatively, the support member 3 included in the second frame 22
Since it is connected to 0, the end portion of the floor plate 13 is connected to the second connection frame 28 or the second frame 22 of the machine body frame 20. Of the anti-vibration rubbers 33 and 34, the central anti-vibration rubber 34 located on the center side of the floor plate is shown in FIG.
As shown in FIG. 3, the rubber block is provided with a connecting bolt 37 connected to one end side by a washer portion 37a, and the connecting bolt 37 on one end side is attached to both the second frames 22 and 22 by a nut 38. By connecting to the support member 31, and the rubber block end on the other end side is in direct contact with the inside of the groove of the reinforcing member 13a made of a grooved sheet metal in the horizontal direction of the floor plate attached to the back surface side of the floor plate 13, Although it is connected to the second frame 22, it is in a non-connected state only by contacting the floor plate 13. That is, the driving sound of the engine and the driving sound of the traveling hydraulic continuously variable transmission 36 included in the traveling mission M are provided at two positions on the left end side of the floor plate 13 and two positions on the right end side. The outer vibration damping rubber 33 is used to reduce the sound transmitted from the other transmission structures to the driving section 6 through the floor plate 13 so that the sound is generated by the outer vibration damping rubber 33. It is connected to the second connection frame 28 or the second frame 22 of the 20.
Then, at one location in the center of the floor plate 13, it is confirmed that noise and vibration are transmitted to the operating unit 6 via the floor plate 13 by the central anti-vibration rubber 3
The central anti-vibration rubber 34 is used to receive and support the second frame 22 of the machine body frame 20 via the central anti-vibration rubber 34 so as to be relaxed by the anti-vibration effect of No. 4.

As shown in FIG. 3, a pair of front and rear outer anti-vibration rubbers 33, 33 located on the left and right ends of the floor plate 13, respectively.
Are arranged so as to be displaced in the left-right direction of the floor plate 13 so as to support the left and right end sides of the floor plate 13 in a state in which they are hard to bend even if a load is applied to the left and right ends of the floor plate 13 such as an operator. In this case, as shown in FIG. 3, in addition to the positional displacement arrangement in which the outer vibration isolator 33 on the front side is located on the lateral side of the machine body with respect to the outer vibration isolator 33 on the rear side, the outer vibration isolator 33 on the front side is rear It is also possible to employ a positional displacement arrangement that is located inside the machine body with respect to the outer vibration-damping rubber 33 on the side.

As shown in FIGS. 3 and 5, the middle anti-vibration rubber 34 is attached in a tilted position so that the floor plate side is located closer to the rear side of the machine body. As a result, even if an operating force is applied to the floor plate 13 in the direction of sliding the floor plate forward, the central anti-vibration rubber 34 receives and supports the floor plate 13 in a state in which it is relatively bent and deformed and is unlikely to be damaged.

As shown in FIGS. 6 and 7, in each of the pair of left and right front step-on / off steps 14, 14, the rear end side of the rear step portion 14a is bent and formed as shown in FIG. The rear end portion 14c located at a lower level than the step upper surface of the operation step 14 is provided on the rear end side of the boarding / alighting step 14, and the front end portion 13b of the floor board 13 is superposed on the rear end portion 14c, and An elastic seal material 39 made of sponge or soft rubber is interposed between the both end portions 13b and 14c, and is tightly connected to the rear end portion 14c by a connecting bolt. That is, floor board 1
3 and the step 14 for getting on and off by the superposition of both end portions 13b and 14c and the action of the elastic sealing member 39,
The gaps between the fourteen are connected to each other so that a contact noise is unlikely to occur.

[Another Embodiment] FIG. 8 shows another embodiment of the mounting structure of the floor plate 13 of the driving section. That is, the left and right end sides of the floor plate 13 are arranged so as to be aligned in the front-rear direction of the self-propelled vehicle without being displaced in the left-right direction of the floor plate 13 via a pair of front and rear outer anti-vibration rubbers 33, 33. The second connection frame 28 of the frame 20 is connected to the support member 30 of the second frame 22.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

[Figure 1] Side view of the entire riding type rice transplanter

FIG. 2 is a plan view of the entire riding type rice transplanter.

FIG. 3 is a plan view of a body frame.

FIG. 4 is a cross-sectional view of an outer vibration isolating rubber disposition portion.

FIG. 5 is a cross-sectional view of the central anti-vibration rubber disposition part.

FIG. 6 is a sectional view of a connecting portion between the floor board and the step for getting on and off.

FIG. 7 is a sectional view of a connecting portion between the floor board and the step for getting on and off.

FIG. 8 is a plan view of a floorboard mounting structure according to another embodiment.

[Explanation of symbols]

6 Driving part 7 Rear wheel fender 11 Seedling planting device 13 Floor board 13b Front end part 14 Steps for getting on and off 14c Rear end part 22,23,24,25,26,31,32,33 Machine frame 33 Vibration damping rubber 34 Central vibration control Rubber 39 Elastic seal material

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Sho ▲ Zaki ▼ Akira 64, Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Sakai Factory Co., Ltd.

Claims (5)

[Claims] 1. A seedling planting device (11) is connected to a rear part of a self-propelled machine equipped with a boarding type operation part (6) so as to be able to operate up and down,
A riding type rice planting comprising a step (14) for getting on and off a vehicle located on the front side of the floor plate (13) of the driving section (6) and a rear wheel fender (7) located on the side of the driving section (6). An aircraft, wherein the step (14) for getting on and off and the rear wheel fender (7) are connected to the body frame (23, 24, 2) of the self-propelled vehicle.
5, 26, 27, 29), the floor plate (13) is formed as a separate component from the step (14) for getting on and off and the rear wheel fender (7), and the body frame (22) of the self-propelled vehicle is formed. , 23, 28) via a vibration-proof rubber (33). 2. The anti-vibration rubber (33) is attached to the floor plate (1).
3) A pair of front and rear anti-vibration rubbers (33), (33) located on the front and rear sides of the left and right end sides, respectively.
2. The riding type rice transplanter according to claim 1, wherein the floor plates are displaced in the left-right direction. 3. A central anti-vibration rubber (34) which receives the floor plate (13) in the left-right central portion in a non-connected state, and which is connected to the body frame (22) of the self-propelled vehicle. The riding type rice transplanter according to claim 2, further comprising: 4. The anti-vibration rubber (33) is provided on the floor plate (1).
3) is located on the front and rear sides of the left and right end sides, respectively, and receives and acts in a non-connected state at the center portion of the floor plate (13) in the left-right direction, and the body frame (22) of the self-propelled aircraft. The riding type rice transplanter according to claim 1, further comprising a central anti-vibration rubber (34) connected to the. 5. A front end portion (13b) of the floor plate (13) is connected to a rear end portion (14c) of the boarding / alighting step (14) so as to overlap the rear end portion (14c). Together with the front end (13b) and the rear end (14c)
The riding type rice transplanter according to claim 1, 2 or 4, wherein an elastic sealing material (39) is present between the padding rice planting machine and the padding machine.