JP2548798Y2 - Weight mounting structure for 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 weight mounting structure in a riding rice transplanter having a planting portion connected to a rear portion of a traveling machine body.

[0002]

2. Description of the Related Art Conventionally, as an embodiment of a riding rice transplanter, a planting portion is detachably connected to a rear portion of a traveling machine body via a connecting means, and weights are replaced between a front end of the traveling machine body and a connecting means. Some are freely attachable.

[0003]

However, in the above-described riding rice transplanter, since the weight is attached to the front end of the traveling body, the ground pressure of the left and right front wheels of the traveling body can be increased in a well-balanced manner. However, the traveling stability of the traveling aircraft could not be secured satisfactorily.

[0004]

Therefore, in the present invention, a planting portion is detachably connected to the rear portion of the traveling body via a connecting means, and the weight can be freely changed between the traveling body side and the connecting means side. An engine bonnet is provided at the front of the body frame of the traveling body, and the mounting bases for the spare seedling stands are provided at the left and right front parts of the body frame located on the left and right sides of the hood. Are mounted, and both spare seedling stands are arranged on the left and right outer sides of the engine bonnet. At the base of each spare seedling stand, a rectangular frame extending in the front-back direction is provided, and each square frame extends in the front-back direction. Weights are detachably mounted, and each weight is arranged near a front paddle traveling front wheel provided on the left and right front portions of the traveling machine body. Ah .

[0005]

When the planting section is connected to the rear of the traveling body via the connecting means, weights are attached to the rectangular frames provided on the mounting bases of the spare seedling stands on the left and right sides. At this time, the square frame and the weights attached to the square frame extend in the front-rear direction, and each weight can be compactly arranged near the left and right side paddy traveling front wheels, and both paddle traveling front wheels The contact pressure can be increased in a well-balanced manner, and the traveling stability of the traveling machine body can be secured well. As a result, the planting operation by the planting section can be performed efficiently.

When the planting section is removed from the connecting means, the weight is moved to be mounted on the connecting means side of the rear part of the traveling body so that the front-rear balance of the body is improved while the rear part of the traveling body is made heavy. It is to be.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an overall side view of a riding rice transplanter, and FIG. 2 is a plan view of the same. In FIG. 1, 1 is a traveling body on which an operator rides, and a transmission case is provided at a rear end of a body frame 3 on which an engine 2 is mounted on a front part. And front wheels 6 for paddy field traveling on both sides behind the engine 2 via a front axle case 5.
And rear wheels 8 for paddy field traveling on both rear sides of the transmission case 4 via rear axle cases 7.
I support.

A spare seedling stand 10 is provided on both sides of the hood 9 covering the engine 2 and the axle cases 5, 7 and the like are covered by a body cover 12 forming a step 11. A driver's seat 13 is mounted above the vehicle body cover 12 above the transmission case 4.
A steering handle 14 is provided in front of the driver's seat 13 and behind the hood 9.

Further, in the figure, reference numeral 15 denotes a seedling mounting table 1 for multiple planting.
6 and a plurality of planting claws 17... Is a planting section having a front-back, high-low, and rearward-tilting type seedling mounting table 16, which is guided to the planting case 20 via guide rails 18 and 19. A rotary case 21 that is slidably supported in a reciprocating manner and is rotated at a constant speed in one direction is supported by the planting case 20, and a pair of planting cases is provided at a symmetrical position about the rotation axis of the case 21. Cases 22 and 22 are provided, and the
Attach 7,17. Further, a support frame 24 is provided on the front side of the planting case 20 via a rotation fulcrum shaft 23, and a top link is provided.
An elevating cylinder 28 that connects the support frame 24 to the rear side of the traveling body 1 through a three-point link mechanism 27 including a lower link 26 and a lower link 26, and that moves the planting section 15 up and down through the link mechanism 27.
The front body 6 and the rear wheel 8 are driven to move at a substantially constant speed while the front wheel 6 and the rear wheel 8 are moved at a substantially constant speed. Two seedlings are taken out by the planting claws 17, 17 and the seedlings are continuously planted.

In the figure, reference numeral 29 denotes a traveling speed change lever, 30 denotes a planting operation lever, 31 denotes a main clutch pedal, 32 and 32 denote left and right brake pedals, and 33...

As shown in FIG. 3 and FIG. 4, front and rear supports 34 and 35 for supporting the spare seedling stand 10 are provided, and support posts 38 and 37 fixed to front and rear brackets 36 and 37 of the vehicle body frame 3 are provided. The base ends of the columns 34, 35 are removably fitted upright on the receiving shaft portions 38a, 39a of the base 39 via the bolts 40, and the connecting frame 41, which has a front-view portal shape so as to straddle the upper side of the hood 9, is provided. The base end is detachably connected to and fixed to the upper end receiving shaft portion 35a of the rear support 35 via a bolt 40.

As shown in FIG. 5, the front and rear support columns 34 and 35 are provided with front and rear parallel links 46 and 47 for supporting the spare seedling stand 10 in multiple stages on the inner and outer frames 42 and 43 via front and rear rods 44 and 45, respectively. And a support plate 48 fixed between upper portions of the front and rear support columns 34 and 35, and parallel links 46 and 47.
9, 50 are mounted at the same height so as to be able to swing back and forth, and the inner frames 42 provided in upper and lower tiers are connected to and supported by the parallel links 46 and 47 via the respective rotating pivots 51 so that the spare seedling stand 10 is horizontally moved. It is configured to be movable in the front-rear direction while maintaining the posture.

Further, a guide plate 52 is fixedly provided between substantially the upper and lower centers of the columns 34 and 35, and an arc-shaped guide groove 53 of the guide plate 52 is provided.
In addition, a guide shaft 54 attached to the third inner frame 42 from the upper side is swingably engaged with the shaft 55a substantially at the center of a horizontal frame 55 fixed between the lower ends of the columns 34 and 35. A gas spring 56 having an extension action force is interposed between the guide shafts 54, and when the spare seedling stand 10 in the normal state is stored, the gas spring 56 is minimized, and the gas spring 56 is
In this way, the weight of the seedling stand 10 is assisted while the spare seedling stand 10 is moved in the front-rear direction.

Reference numerals 57a and 57b denote guide rollers provided on the parallel links 46 and 47 for rolling contact with the guide plate 52.

On the other hand, a spare seedling stand is provided on the inner surface of the support plate 48.
A lock device 58 for fixing the position of the lock device 58 is provided, and lock release levers 59 and 60 for unlocking the lock device 58 are provided.
Are provided in two places before and after the seedling stand 10.

The locking device 58 is provided with the front parallel link.
A lock plate 62 having a plurality of positioning pin holes 61 fixed to the upper end of 46, and a lock arm 65 which is supported by a support plate 48 via a pivot shaft 63 to engage and disengage a lock pin 64 with the pin hole 61. And the release levers 59 and 60 are respectively provided on spare seedling moving operation handles 66 and 67 fixed to the front and rear side surfaces of the parallel links 46 and 47, respectively.
And each release lever 59, 60 is connected by each wire 68, 69,
Release lever 59,6 from any direction before and after spare seedling stand 10
It is configured such that the spare seedling stand 10 can be moved by operating “0”.

In FIG. 5, 58-1 is a lock pin.
64 is a guide plate that supports the rear part, and the guide plate 58-1 is L
The base is fixed to the support plate 48 while being formed in a letter shape.

Reference numeral 58-2 denotes a collar for supporting the tip of the lock pin 64, which is directly fixed to the support plate 48. 65-1 is a connection pin for connecting the lock arm 65 and the lock pin 64, and 65-2 is a winding spring, which constantly urges the lock pin 64 in an extended state, and the tip of the lock pin 64 is a lock plate 62. Side pin hole 61
So that it can be inserted into

An outer seedling 10a is integrally connected to a position outside the spare seedling 10 supported by the parallel links 46 and 47.

In FIG. 3, the mounting bases 10-1, 10-1 of the spare seedling stands 10, 10 on the left and right sides are respectively provided with rectangular frames 10-2, 10-.
2 each, and weights 10A,
10A can be mounted freely. Reference numeral 10-3 denotes a fixing plate projecting vertically from the bottom 10-4 of the rectangular frames 10-2, 10-2.
On the 10A side, a notch groove portion 10B provided in the vertical direction is freely fittable.

Therefore, the weights 10A, 10A mounted on the rectangular frames 10-2, 10-2 are fixed in the front-rear direction by fitting the notch grooves 10B into the fixing plate 10-3. is there.

10C is a gripping hole formed in the center of the weight 10A, 10-5 is a fixing bolt screwed on the front side of the rectangular frame 10-2, and the fixing bolt 10- is formed on the front side of the weight 10A. Five
A recess 10D into which the tip fits is formed.

The weight 10A is connected to the traveling body 1
At the rear of the planting area by connecting means 24 such as connecting hitch 24A
When the planting unit 15 is connected, it is placed on the spare seedling stand 10 side, and when the planting unit 15 is removed from the traveling machine body 1, the weight 10A is moved to the connecting means 24 side so that it can be attached. I have.

FIG. 10 is an explanatory view showing a mounting state of the fuse box of the riding rice transplanter.
A hood covering 71, and a headlight 72 is attached to the front front side. Reference numeral 73 denotes a fuse box provided at a lower front position of the headlight 72, and reference numeral 74 denotes a mounting seat. Therefore, in this case, the inspection of the fuse box 73 is easy because the fuse box 73 is disposed at the lower front position of the headlight 72.

In particular, a riding rice transplanter is often stored in a barn or the like, and even when the inside of the barn is dark, the headlight 73 can be turned on and the fuse 73 can be easily inspected. It can be done efficiently.

Further, satisfactory fuse maintenance can be performed only by removing only the front side of the bonnet 70.

FIGS. 11 and 12 are enlarged sectional views of the lifting cylinder. Reference numeral 80 denotes a cylinder of the lifting cylinder 28, in which a piston 81 is slidably provided. An O-ring groove 82 and a concave groove 83 are formed on the outer periphery of the piston 81, an O-ring 84 is fitted in the O-ring groove 82, and a Teflon ring 85 made of Teflon is fitted in the concave groove 83, respectively. Along with
The O-ring 84 is provided on the inner diameter side of the Teflon ring 85.

Then, when the hydraulic pressure of the hydraulic oil acts, the hydraulic pressure acts on the Teflon ring 85 side from the O-ring 84 side, acts to push the Teflon ring 85, and comes into close contact with the inner wall surface of the cylinder.

Therefore, the Teflon ring 85 can reliably prevent the leakage of the hydraulic oil and eliminate the leakage of the lift cylinder 28, and also can prevent the O-ring 84 from being worn and improve the durability.

[0030]

[Effect of the Invention] In the present invention, a bonnet for an engine is provided at the front of the body frame of the traveling body, and the mounting bases of the spare seedling stands are respectively provided at the left and right front parts of the body frame located on the left and right sides of the hood. Attach, place both spare seedlings on the left and right sides of the engine bonnet, provide a rectangular frame extending in the front-rear direction at the mounting base of each spare seedling, and add weights extending in the front-rear direction to each square frame. Since the weights are detachably mounted and the weights are placed near the front wheels for paddy field traveling provided on the front left and right sides of the traveling body, the front and rear balance of the traveling body connected with the planting part, Good balance can be ensured, and the left and right weights can be extended in the front-rear direction to be compactly arranged near the left and right paddy traveling front wheels. To be able to enhance a good balance contact pressure, it is possible to improve the running stability of the vehicle body.

The planting operation by the riding rice transplanter can be performed efficiently while the structure is simple as a whole.

[Brief description of the drawings]

FIG. 1 is an overall side view of a riding rice transplanter.

FIG. 2 is a plan view of the same.

FIG. 3 is an explanatory side view of a spare seedling stand.

FIG. 4 is an explanatory front view of the same.

FIG. 5 is an explanatory plan view of a spare nursery stand locking device.

FIG. 6 is a side view of a weight mounting portion.

FIG. 7 is a front view of the same.

FIG. 8 is a side view of the weight.

FIG. 9 is a side view showing a state in which a weight is mounted on the connecting means side.

FIG. 10 is a partial cross-sectional side view showing a mounting state of the fuse box.

FIG. 11 is a sectional view of a lifting cylinder.

FIG. 12 is an enlarged sectional view showing an attached state of an O-ring inside the lifting cylinder.

[Explanation of symbols]

 1 traveling machine 9 bonnet 10 spare seedling stand 10-1 mounting base 10A weight 15 planting part 24 connection means

Claims (1)

(57) [Scope of request for utility model registration] 1. A planting portion (15) is connected to a rear portion of a traveling body (1).
It is detachably connected via the connection means (24), and the traveling body (1) side
And weights (10A) and (10A) to the connecting means (24).
For a transplanting rice transplanter that can be installed at the moment , the engine body is mounted on the front of the body frame (3) of the traveling aircraft (1).
The hood (9) is installed on the left and right outer sides of the hood (9).
At the front left and right sides of the body frame (3)
Attach the mounting bases (10-1) and (10-1) of Binnae (10) and (10).
The spare seedling stands (10), (10) to the engine bonnet (9).
Of each spare seedling stand (10), (10), the mounting base (10-1), (10-1)
Provide rectangular frames (10-2) and (10-2) that extend in the front-rear direction.
Weights (1) extending in the front-rear direction are added to formwork (10-2), (10-2)
0A) and (10A) are detachably mounted, and each weight (10A), (1
0A) is located in front of the traveling body (1) on the left and right sides.
A weight mounting structure for a riding rice transplanter, wherein the weight mounting structure is arranged near wheels (6), (6) .