JPH0147326B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention comprises a seedling planting device disposed behind the driver's seat, an engine, a transmission case disposed behind the engine, and a footrest step provided at the bottom of the transmission case. A rear fuselage equipped with a seedling planting device behind the driver's seat is connected to the front fuselage so as to be rotatable around the vertical axis, and the front end of the wind guide casing surrounding the engine of the front fuselage Regarding a riding rice transplanter that is configured to have a nearby fan that forces cooling air to flow from the front to the rear, and to discharge the engine cooling air to the rear through one side of the transmission case, please refer to the above-mentioned details in detail. This invention relates to an engine cooling air discharge device.

The engine cooling air is guided to one side of the transmission case by a cooling fin provided at the top of the cylinder head, and the guided cooling air flows between the side wall of the transmission case and the transmission case. It was discharged to the rear of the aircraft through a space between it and the side plate of the engine mounting frame attached to the tip of the boss part on the side wall, but since the driver's seat is located behind the transmission case, heat is absorbed. The drawback was that the engine cooling air, which had reached a considerable temperature, hit the pilot's feet directly, making him uncomfortable.

The present invention has been made in view of the above-mentioned points, and in the rice transplanter having the above-mentioned structure, the cooling air is discharged rearward through the side wall of the transmission case through which the engine cooling air passes, through the inside of the operator's feet. The exhaust duct prevents warm air from cooling the engine from blowing directly at the driver's feet, allowing him to drive more comfortably.

Moreover, since the rear end of the exhaust duct extends close to the vertical axis where the rear body bends relative to the front body, hot air after cooling the engine is less likely to fall on the operator's feet. In other words, if the exhaust duct is short, the hot air from the exhaust duct will be discharged over a wide area as the front fuselage bends. By doing so, the hot air from the air exhaust duct is not discharged over a wide area, and the hot air exhausted from the air exhaust duct is less likely to fall on the feet of the operator.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

1 is an air-cooled engine with its axis facing forward and backward, 2 is a transmission case, 3 is a control handle, 4 is a driver's seat, 5 is a footrest extending from the side wall of the fender 7 of the wheel 6, and 8 is a transmission case. A power transmission case to the wheels attached to the side wall of the system case 2, 9
Has a seedling stand 10, a seedling planting claw 11, and a float 1.
This is a transmission case that transmits power from the engine to the conventionally known seedling planting device A equipped with the 2.
The front body 1A, which is equipped with an engine 1, a transmission case 2, a control handle 3, a footrest step 5, and wheels 6, has a vertical axis relative to a rear body 1B, which has a driver's seat 4 and a seedling planting device A. It is connected around the core P so that the body can be folded.

The wheel 6 also has a rim 6a of the wheel, a lug 6b wider than the rim, and a rectilinear plate 6c provided between the lugs.
The straight-travel plate 6c includes a screw to prevent the straight-travel plate 6c from slipping on the protrusion of the treadle 25 when loading the rice transplanter onto the loading platform of a truck or the like.
Additionally, notches 6d are formed at three locations in the circumferential direction to avoid the protrusions of the treadle.

13 is a frame on which engine 1 is mounted; 14;
Reference numeral 14 denotes a pair of left and right side frames for fixing the engine mounting frame 13 at the front of the transmission case 2. The side frames 14 are integrally constructed with the frame 13, and extend horizontally from the side wall of the transmission case 2. It is fixedly connected via a bolt 16 to the tip of a boss 15 formed to protrude outward.

Reference numeral 17 denotes an engine cooling fan having blades provided on a flywheel, and is provided near the front end of a wind guide casing 18 surrounding the engine 1.

The engine cooling air is configured to pass through one side of the transmission case 2 depending on the rotational direction of the fan 17 and the orientation of the air cooling fins provided at the top of the cylinder head of the engine 1.

Reference numeral 19 directs engine cooling air that flows through the cylinder head at the top of the engine, passes between the side wall of the mission case 2 and the right side frame 14, and is discharged to the rear of the aircraft through the inside of the operator's feet to the rear of the aircraft. It is a guide plate with a U-shaped cross section that constitutes an air exhaust duct for moving the transmission case 2.
It is fixedly connected via bolts 21 with its U-shaped upper side resting on the upper surface of a rib 20 that is integrally formed to protrude with a boss 15 provided on the side wall of the side frame 14, and its outer surface is connected to the outer surface of the side frame 14. The rear end extends close to the vertical axis P. Therefore, the temperature inside the exhaust duct does not escape upward through the gap with the mission case 2 due to the ribs 20.

22 is a handle that also serves as a protector that connects the tips of the side frames 14, 14;
Further, 23 is a planting transmission case 24 of the seedling planting device.
It is a handle that doubles as a protector that connects the space between the two, and is used when lifting the aircraft manually from the front and rear when the aircraft cannot climb over ridges on its own.

[Brief explanation of drawings]

The drawings illustrate embodiments of the riding-type rice transplanter according to the present invention, in which FIG. 1 is a side view showing the whole, FIG. 2 is a plan view showing the whole, FIG. 3 is an enlarged side view of main parts, and FIG. 5 is an enlarged rear view of the essential parts, FIG. 6 is a partially enlarged side view of the wheel, and FIG. 7 is a sectional view taken along the line -- in FIG. 6. 1... Engine, 2... Mission case, 4
...Driver's seat, 5...Foot rest step, 17...Fan, 18...Casing, 19...Duct, 1
A...Front fuselage, 1B...Rear fuselage, A ...Seedling planting device.

Claims (1)

[Claims] 1 Planting seedlings behind the driver's seat 4 for the front fuselage 1A, which includes the engine 1, the transmission case 2 placed behind it, and the footrest step 5 provided at the bottom of the transmission case 2. The rear fuselage 1B equipped with the device A is connected rotatably around the vertical axis P, and cooling air is directed from the front to the rear near the front end of the wind guiding casing 18 surrounding the engine 1 of the front fuselage 1A. A riding rice transplanter is provided with a fan 17 for forcing the air to flow, and is configured to discharge the engine cooling air rearward through one side of the transmission case, the transmission case 2 through which the engine cooling air passes. An exhaust duct 19 is provided on the side wall of the vehicle for discharging the cooling air rearward through the inside of the operator's feet, and furthermore, the rear end of the exhaust duct 19 is extended in the front-rear direction to near the vertical axis P. A riding rice transplanter with certain characteristics.