JP2641356B2 - Small riding lawn mower - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a body layout of a small riding lawn mower.

[0002]

2. Description of the Related Art A riding lawn mower is disclosed in Japanese Utility Model Laid-Open No. 3-1272.
No. 8 has a plurality of cutting blades and is suitable for mowing a relatively large area. On the other hand, a walking lawn mower has a single blade as shown in Japanese Utility Model Laid-Open No. 3-48425. It is suitable for mowing a relatively small area.

[0003]

The walking lawn mower has a small size, so that it can be used even in a narrow place such as a grove and has good handleability that is easy to store in a warehouse or the like. Although it is intended for a small area for mowing the lawn, it is disadvantageous in terms of labor since the pilot always walks during the lawn mowing operation. Therefore,
There was a view that it was difficult to use for the elderly and for those who could not walk. Accordingly, the present invention realizes a small riding lawn mower having a good handling property comparable to that of a walking lawn mower, and enables a pilot to perform lawn mowing work in a relatively small area suitable for a conventional walking lawn mower. The purpose of this is to reduce the labor.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is to arrange a mower between front and rear wheels, and arrange a driver's seat located above the mower.
In addition, the engine with the crankshaft facing downward is disposed between the pair of left and right rear wheels in a lateral position with the cylinder located on the side of the crankshaft, and at a position forward of the rear axle, and traveling. A hydrostatic continuously variable transmission for the vehicle is disposed on the rear side of the rear axle.

It is advantageous that the continuously variable transmission is provided with a power take-off shaft and the power take-off shaft extends downward from the continuously variable transmission.

[0006]

According to the layout according to the above-mentioned characteristic configuration, as will be described in detail in the embodiment, in configuring a small riding lawn mower with a mower disposed between the front and rear wheels, a steplessly disposed near the rear axle is constructed. Since the engine is arranged on the front side of the transmission and on the front side of the rear axle, the engine, which is a heavy object, can be positioned as forward as possible to improve stability. And, due to the horizontal arrangement of the engine, the driver's seat on the mower arranged closer to the front than the one with the cylinder facing forward is moved slightly backwards, that is, the driver on board is placed in the center of the front and rear wheels as much as possible It can contribute to the arrangement.

Since the engine output shaft is directed downward,
The power transmission system can be made more compact than when the power transmission system is directed upward. In addition, since the continuously variable transmission is located behind the rear axle, it does not hinder the arrangement of the mower between the front and rear wheels, and makes it easier to check and maintain the continuously variable transmission from the rear of the aircraft. It is convenient.

If the power take-off shaft is located at the lower surface of the continuously variable transmission, it is easy and convenient to arrange the power transmission means when other driving devices are provided at the rear of the body.

[0009]

Thus, the reasonable layout of the mid-mount lawn mower makes it possible to obtain a light maneuverability with a good weight balance by placing the engine and the driver's seating position between the front and rear wheels as much as possible. However, it was possible to provide a compact riding lawn mower with a compact and easy-to-handle design with a reduced distance between the front and rear axes.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a small-sized riding mount mower of a mid-mount type, 2 is a mower having a single cutting blade 1,
A driver's seat 5 is provided on the lower abdomen between the front steering wheel 3 and the rear driving wheel 4 so as to be able to move up and down.
Is arranged.

At the position immediately before the rear axle 18 between the pair of right and left rear wheels 4, 4, a transverse engine E having a cylinder 6 on the right of a vertically extending crankshaft 7 is mounted. Have been. A transmission 9 having a hydrostatic stepless transmission (hereinafter abbreviated as HST) 8 is disposed at a position below and behind the engine E and behind the rear axle 18.

Two drive pulleys 10 and 11 are attached to the crankshaft 7 projecting downward from the engine E, and the upper drive pulley 10 and the input shaft 12 of the HST 8 and the lower drive pulley 11 and the motor are connected to each other. The two input shafts 13 are belt-linked. The input shaft 12 of the HST 8 protrudes downward through the transmission case 9A and serves as a power take-out shaft 14. Reference numeral 15 denotes an air cleaner, 16 denotes a carburetor, and 17 denotes a muffler.

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]

FIG. 1 is a side view of a small riding lawn mower.

FIG. 2 is a plan view of a small riding lawn mower.

[Explanation of symbols]

 2 Mower 3 Front wheel 4 Rear wheel 5 Driver's seat 6 Cylinder 7 Crankshaft 8 Transmission 14 Power take-off shaft 18 Rear axle E Engine

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Masatsugu Tone 64 Ishizukita-cho, Sakai-shi, Osaka Kubota Sakai Works Co., Ltd. (56) References 172726 (JP, U)

Claims (2)

(57) [Claims] 1. A mower (2) between front and rear wheels (3) and (4).
And a driver's seat (5) is located above the mower (2), and is a vertical axis type crankshaft.
The engine (E) with the shaft (7) facing downward is
The damper (6) is located laterally on the side of the crankshaft (7).
Between the pair of left and right rear wheels (4), (4)
It is located at a position on the front side of the axle (18).
And a hydrostatic continuously variable transmission (8) for traveling is mounted on the rear axle.
A small riding lawn mower located behind (18) . 2. A power take-off shaft (14) provided in the continuously variable transmission (8), and the power take-off shaft (14).
2. A small riding lawn mower according to claim 1, wherein said stepless transmission extends downward from said continuously variable transmission.