JPH0441966B2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a riding rice transplanter.

(Prior art) Utility Model Application Publication No. 1983-1980 (Prior art)
Publication No. 146619 discloses a passenger vehicle body, two left and right front wheels provided at the lower front and rear intermediate positions of the vehicle body,
a pair of left and right power transmission cases provided at the rear of the running vehicle; two left and right rear wheels attached to the rear end of the power transmission case; a vertical movement device mounted at the center of the rear of the running vehicle; In a riding rice transplanter comprising a planting device (not shown) attached to the rear end of the moving device, at a position above the front axle of the front wheel and the rear axle of the rear wheel at a rear position of the traveling vehicle body. An engine is installed, a driver's seat is provided above the engine, a steering case is provided on the upper front surface of the vehicle body, a steering wheel is attached to the upper part of the steering case, and the front wheels are mounted at a position lower between the front and rear of the vehicle body. This document describes a riding rice transplanter in which the main transmission part is attached to a position rearward of the front axle with a portion thereof protruding above the driving deck.

(Problems to be Solved by the Invention) The above-mentioned known example has the problem that the rear part of the riding rice transplanter is too heavy and the front-to-back balance is poor, and the problem that most of the decks are not flat as shown in the figure of the known example.

In other words, the driver's seat, engine, main transmission section, and planting device are all located behind the front wheel axis, so when the front wheel axis is taken as a reference, The rear part is too heavy compared to the shaft, and the front and rear balance is poor. If the front and rear balance is poor, it is easy to topple over, so it is not possible to make the structure very compact and lightweight, which results in larger sizes.

Furthermore, in the known example, the main transmission is located at the above-mentioned position (behind the front wheel axis), but a portion thereof protrudes above the driving deck. Even if the main transmission is provided on the front side of the deck and in front of the front wheel axle as in the present application, it is inevitable that a part of it will protrude above the driving deck, but in the case of the known example, Since it protrudes just above the driver's feet, it is no longer flat, and the rider always drives in a position that straddles it.
Maneuverability is extremely poor. In other words, unlike ordinary cars, a passenger rice transplanter is operated while constantly looking back at the state of planting behind it, so if there is an obstacle protruding upwards at the feet, as mentioned above, it will get in the way of changing the posture. This results in very poor maneuverability.

(Means for Solving the Problems) Therefore, the present invention provides a passenger vehicle body 1, two left and right front wheels 2 provided at the front and rear intermediate lower positions of the vehicle body 1, and a front wheel 2 provided at a rear position of the vehicle body 1. A pair of left and right power transmission cases 37 and the power transmission case 3
two left and right rear wheels 3 attached to the rear ends of 7, and a vertical movement device 33 attached to the rear center of the traveling vehicle body 1;
and a planting device 25 attached to the rear end of the vertical movement device 33, the front axle 5 of the front wheel 2 and the rear axle 6 of the rear wheel 3 are connected at the rear position of the traveling vehicle body 1. engine 8 in the upper position between
Attach the driver's seat 4 to the upper position of the engine 8.
A driving deck 36 is provided in front of the driver's seat 4.
A steering case 32 is provided on the front upper surface of the traveling vehicle body 1, and the steering case 32
Attach the steering wheel 9 to the top of the deck 3.
This riding rice transplanter has a main transmission part 10 mounted at a position in front of the front wheel 2 relative to the front axle 5 of the front wheel 2.

(Embodiment) To explain with reference to embodiment drawings, reference numeral 1 denotes a passenger vehicle body, which has front wheels 2 and rear wheels 3 and is formed into a four-wheeled passenger type. 4 is a driver's seat, which is provided at a high position above between the front axle 5 of the front wheels 2 and the rear axle 6 of the rear wheels 3;
will be established.

A steering wheel 9 is provided above the front end of the traveling vehicle body 1, and a main transmission section 10 is provided below the steering wheel 9. The main transmission part 10 is located in front of the front axle 5, and most of it is located on the driving deck 36.
It is smaller and lighter than the engine 8.

Reference numeral 11 denotes a clutch body, which is composed of a clutch pawl 12, a sliding clutch 13, and the like. The clutch pawl 12 is integrally formed on the side of a pulley 14, and a belt 17 is passed between the pulley 14 and a pulley 16 fixed to the output shaft 15 of the engine 8.

The pulley 14 is fixed to a shaft 19 of a hydraulic pump 18 provided near the engine 8. That is,
The hydraulic pump 18 is rotated by the engine 8 via the output shaft 15, pulley 16, belt 17, and pulley 14.

The sliding clutch 13 is attached to the rear end of an input shaft 20 extending rearward from the main transmission part 10, and the shaft 19 of the hydraulic pump 18 and the input shaft 20 are arranged on the same axis.

21 is a front transmission, 22 is a front wheel drive transmission case, and 23 is a rear wheel drive transmission shaft. At the rear of the traveling vehicle body 1 is a piston 34 of a hydraulic system 24.
Vertical movement device 33 consisting of parallel links that move vertically
The planting device 25 is attached so as to be movable up and down.

26 is the center float, 27 is the left and right float,
28 is a planting rod, 29 is a transmission shaft for driving the planting, 30 is a clutch pedal, 31 is a rod, 32 is a steering case, 35 is a seedling tank, 37 is a traveling vehicle body 1
A pair of left and right power transmission cases installed at the rear of the vehicle.

(effect) Next, we will discuss the effect.

In the present invention, seedlings are placed on the seedling tank 35 of the planting device 25, and when the seedlings move forward through the rice field, they are cut out one by one by the planting rod 28 and planted.

At the end of the rice field, a U-turn is made, but in the riding rice transplanter of the present invention, the main transmission section 10 is installed at the front of the deck 36 and at a position further forward than the front axle 5 of the front wheel 2. Main mission part 1
Since the weight at 0 is applied to the front side of the front axle 5 of the front wheels 2, the weight balance between the front and rear of the aircraft body is good, and the entire body can be constructed with a lightweight structure, making it easy to maneuver.

Furthermore, since the main transmission part 10 is attached to the front position of the deck 36 and to the front side of the front axle 5 of the front wheel 2, even if a part of the main transmission part 10 protrudes above the deck 36, Since this is the front end of the deck 36, which has nothing to do with the driver's feet, the feet have a flat structure.
Good maneuverability.

(Effects) The above known example has the problem that the rear part of the riding rice transplanter is too heavy and the front and back balance is poor, and the problem is that most of the deck is not flat as shown in the figure of the known example. In other words, in the known example, the driver's seat, the engine,
The main planting part and the planting device are all located behind the front wheel axle, so when the front wheel axle is used as a reference, the rear part becomes too heavy compared to the front wheel axle. The front and rear balance is poor. If the front and rear balance is poor, you may fall down.
It is not possible to make the structure very compact and lightweight, and it has become large.

Furthermore, in the known example, the main transmission is located at the above-mentioned position (behind the front wheel axis), but a portion thereof protrudes above the driving deck. Even if the main transmission is provided on the front side of the deck and in front of the front wheel axle as in the present application, it is inevitable that a part of it will protrude above the driving deck, but in the case of the known example, Since it protrudes just above the driver's feet, it is no longer flat, and the rider always drives in a position that straddles it.
Maneuverability is extremely poor. In other words, unlike ordinary cars, a passenger rice transplanter is driven while constantly looking back at the state of planting behind it, so if there is an obstacle protruding upwards at the feet, as mentioned above, it will get in the way of changing the posture. This results in very poor maneuverability.

However, the present invention provides a passenger traveling vehicle body 1, two left and right front wheels 2 provided at a front and rear intermediate lower position of the traveling vehicle body 1, a pair of left and right power transmission cases 37 provided at a rear position of the traveling vehicle body 1, Two left and right rear wheels 3 attached to the rear end of the power transmission case 37, and a vertical movement device 3 attached to the rear center of the traveling vehicle body 1.
3 and a planting device 25 attached to the rear end of the vertical movement device 33, the front axle 5 of the front wheel 2 and the rear axle of the rear wheel 3 are connected at a rear position of the traveling vehicle body 1. 6, a driver's seat 4 is provided above the engine 8, and a driving deck 3 is installed in front of the driver's seat 4.
6, a steering case 32 is provided on the upper front surface of the traveling vehicle body 1, and the steering case 3
A steering wheel 9 is attached to the upper part of the rice transplanter 2, and a main transmission part 10 is attached at a position in front of the deck 36 and in front of the front axle 5 of the front wheel 2.

B. In the above-mentioned known example, the main transmission part is located at the rear side of the front wheels, so the rear part of the riding rice transplanter becomes too heavy and the weight balance between the front and rear is poor, making it difficult to reduce the weight of the machine. However, in the present invention, the main transmission part 10 is connected to the front axle 5.
Since the position is more forward than the front axle 5, the weight balance between the front and rear of the body is good, and even if the weight is reduced, there is no fear of it falling over, which has the effect of reducing the weight.

(b) In addition, in a known example in which the main transmission part is provided at a position on the rear side of the front wheels, a part of the main transmission part protrudes above the deck even though the main transmission part is on the rear side of the front wheels. However, in the present invention, the main transmission part 10 is installed at a position in front of the deck 36 and in front of the front axle 5 of the front wheel 2, so that a part of the main transmission part 10 is Even if it protrudes above the deck 36, it will not interfere with driving, and the driver's feet can be formed into a wide flat deck 36, improving the maneuverability of the rice transplanter, which is operated while constantly looking back. effective.

This effect is achieved.

[Brief explanation of drawings]

FIG. 1 is an overall side view, FIG. 2 is an overall plan view, and FIG. 3 is an enlarged view of main parts. Explanation of symbols, 1... Running vehicle body, 2... Front wheels, 3
...Rear wheel, 4...Driver's seat, 5...Front axle, 6...
...Rear axle, 7...Space, 8...Engine, 9...
... Steering, 10 ... Main transmission part, 11
...Clutch body, 12...Clutch claw, 13...
Clutch, 14...Pulley, 15...Output shaft,
16...Pulley, 17...Belt, 18...Hydraulic pump, 19...Shaft, 20...Input shaft, 21...Front transmission, 22...Transmission case for front wheel drive, 23...Rear wheel drive transmission shaft, 24...hydraulic system, 25...planting device, 26
...Central float, 27...Left and right side floats, 2
8... Planting rod, 29... Planting drive transmission shaft, 30
...clutch pedal, 31...rod, 32...
Steering case, 33... Vertical movement device, 34
... Piston, 35 ... Seedling tank, 36 ... Deck, 37 ... Power transmission case.

Claims (1)

[Claims] 1. A passenger vehicle body 1, two left and right front wheels 2 provided at a front and rear middle lower position of the vehicle body 1, a pair of left and right power transmission cases 37 provided at a rear position of the vehicle body 1, and the power transmission case 37. A passenger vehicle consisting of two left and right rear wheels 3 attached to the rear end, a vertical movement device 33 attached to the rear center of the traveling vehicle body 1, and a planting device 25 attached to the rear end of the vertical movement device 33. In the rice transplanter, the front axle 5 of the front wheel 2 and the rear axle 6 of the rear wheel 3 are connected at a rear position of the traveling vehicle body 1.
An engine 8 is mounted above the engine 8, a driver's seat 4 is provided above the engine 8, a driving deck 36 is provided in front of the driver's seat 4, and a steering wheel is mounted on the front upper surface of the traveling vehicle body 1. This riding rice transplanter is provided with a case 32, a steering 9 is attached to the upper part of the steering case 32, and a main transmission part 10 is attached at a position in front of the deck 36 and in front of the front axle 5 of the front wheel 2.