JPS61265011A - Walking type lawn mower - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a cutting blade in which traveling wheels are mounted on the front and rear sides, and the cutting blade is internally driven and rotatable around a vertical axis. This invention relates to a walk-behind lawn mower with a grass collection container provided above the housing.

[Conventional technology]

In the walk-behind lawn mower described above, by providing the grass collection container above the cutting blade housing, the length of the control handle protruding rearward from the machine body can be kept short compared to installing it behind the cutting blade housing. However, it has the advantage of providing more leg space and making it easier to walk.

Conventionally, as this type of walking lawn mower, for example,
There was one shown in Publication No.-163335. In this case, the engine that drives the cutting blade is also arranged above the cutting blade housing in line with the grass collection container in the longitudinal direction of the machine body, which has the following disadvantages.

[Problem that the invention seeks to solve]

In other words, since it is necessary to secure a space for the engine arrangement on the E side of the cutting blade removal, the cross-sectional area of the grass collection container becomes smaller and the amount of grass that can be collected decreases.
In order to increase the amount that can be collected, the height of the grass collection container must be increased, and the weight of the collected grass reduces the stability of the machine. Furthermore, as the herb container shifts toward the center of the rear axle due to the engine, and as the collected grass increases, the ground load difference between the front and rear wheels changes due to the weight of the collected grass, making it difficult to control the vehicle. was changing.

The purpose of the present invention is to increase the amount of grass that can be collected while keeping the height of the grass collecting container as low as possible, and furthermore, to prevent changes in the sense of operation regardless of changes in the amount of collected grass. .

[Means for solving problems]

The present invention is characterized in that, in the above-mentioned walk-behind lawn mower, the grass collecting container is formed to cover most of the cutting blade housing, and the center of the lawn mower in the longitudinal direction of the machine body is The engine is located at or near the center of the front axle and the rear axle, with the output shaft facing downwards, and the engine body being located near the outside of the cutting blade hacking in plan view. The engine is arranged so that the mower is wound around the output shaft and the mower drive shaft, and the winding disposed between the mowing blade housing and the grass collecting container wraps the mower around the output shaft and the mower drive shaft. The effects are as follows.

[For production]

By locating the engine near the outside of the mower blade in plan view, most of the space above the mower blade can be used only for arranging the grass collection container, and the grass collection container can be attached to the mower blade housing. The cross-sectional area of the grass collection container is set large enough to cover most of the grass container, and compared to conventional methods, the height of the grass collection container can be kept lower while increasing the volume.
In addition, the grass collection container can be arranged so that the center in the front-rear direction is located at or close to the middle of the front axle center and the rear axle center in plan view.

By placing the engine's output shaft in the downward direction of the machine E and wrapping the winding device between this and the cutting blade drive shaft, the acid movement structure and T1 from the engine to the cutting blade can be minimized. Although this mechanism is located between the cutting blade and the herb collection container, the size of the notch provided in the herb container is kept as small as possible in order to avoid acid movement structure, and the herb collection container is The placement level of grass containers can be kept as low as possible.

〔Effect of the invention〕

By being able to increase the capacity of the grass collection container, the amount of grass that can be collected can be increased, and the number of work interruptions for discharging the collected grass can be reduced, making it possible to work more efficiently. Moreover,
By minimizing the size of the notch into which the sliding structure enters, the height of the grass collection container itself can be minimized, and by lowering the arrangement level of the grass collection container as much as possible, the storage level of collected grass can be kept as low as possible. This allows the machine to be as stable as possible regardless of the weight of the collected turf, and furthermore, the center of the grass collection container can be placed between the axle windows, making it possible to maintain stability regardless of changes in the amount of collected turf. The ground load difference between the front and rear wheels can be made to have little or no change, making it easier to maneuver regardless of the grass being recovered.

〔Example〕

As shown in Figures 1 and 2, a pair of left and right running idler wheels are attached to the front and rear, and the cutting blade (3) is set at the vertical axis fP. ) There is a control hand 2 at the rear of the mower blade hacking (4) that can be rotated freely around the inside (5)
The engine (6) that drives the cutting blade (3) is arranged so that the main body is located near the rear outside of the cutting blade housing (4) in plan view, and the pair of connections are also +71,
Attach to the rear of the cutting blade housing +4 via f71,
A grass collecting container (8) is provided on one side of the cutting blade housing (4), and the cutting grass is blown away by the cutting blade housing (4) by the releasing action and air blowing by the cutting blade (3) which is rotated once. The grass is discharged from the grass discharge flK (4a) and collected in the grass collection container (8
) to constitute a walk-behind lawn mower.

In order to drive the cutting blade (3), as shown in FIG. (4
) The cutting blade drive shaft (l
An internal moving lever (+2) is wound around a drive case (11) disposed between the grass collecting container (8) and the cutting blade housing (4).

The grass collecting container (8) is formed so as to cover most of the cutting blade housing (4), and has a cross-sectional area approximately equal to the interior part of the cutting blade of the cutting blade housing (4). The container volume is relatively large.

The grass collection container (8) is arranged so that the center fol in the longitudinal direction of the aircraft is located at a location close to or between the front axle center fF'l and the rear axle center (R1) in plan view, Regardless of the change K in the amount of recovered grass, care is taken so that the difference between the ground contact load within the front axle and the ground contact load of the rear wheels (2) does not change or hardly changes.

[Another example]

As in Example E, the engine (6) is connected to the cutting blade housing (4).
) If it is placed at the rear of the machine, it will be closer to the worker and it will be easier to check the engine while working, and it will not protrude laterally from the machine body, allowing the machine to move as close as possible to obstacles such as walls, making edge mowing advantageous. Although there are advantages, as shown in Figs. 3 and 4,
The engine (6) may be disposed laterally outside the cutting blade housing (4). In this case, use the steering handle (
It is advantageous to be able to secure a large foot space while keeping the length of the protrusion from the cutting blade housing (4) shorter.

A notched chain may be used instead of the drive belt (12), and these are collectively referred to as a driving tool (12).

[Brief explanation of drawings]

The drawings show an embodiment of a walk-behind lawn mower according to the present invention, in which FIG. 1 is an overall plan view, FIG. 2 is a partially cutaway side view of the entire structure, and FIG.
Figure 3 is an overall plan view of another lawn mower, and Figure 4s4 is the third
It is a sectional view taken along the line IV-4 in the figure. +11, +21... Traveling wheel, L31.
...Mower blade, (4) ...Mower blade housing,
(6)... Engine, (8)... Grass collecting container, (9)... Output shaft, [10)...
・Cutter blade drive shaft, (1@...... winding is transmission gear, (C
)...Container center, fli'l...Front axle center, (R)...Rear axle center.

Claims (1)

[Scope of Claims] [1] A mower in which running wheels (1 or 2) are attached to the front and rear, respectively, and a mowing blade (3) is installed inside the mower so that it can be freely driven and rotated around a vertical axis (P). A walk-behind lawn mower is provided with a grass collection container (8) above a blade housing (4), the grass collection container (8) being formed to cover most of the cutting blade housing (4). At the same time, the center of the aircraft in the longitudinal direction (
C) is located between or near the front axle center (F) and rear axle center (R), and the output shaft (9)
The engine (6) is arranged so that the engine body faces up and down, and the engine body is located near the outside of the cutting blade housing (4) in plan view, and the engine (6) is connected to the cutting blade housing (4). A winding transmission (12) placed between the grass container (8) is connected to the output shaft (9) and the cutting blade drive shaft (10).
A walk-behind lawn mower that is wound around. [2] The engine (6) is connected to the cutting blade housing (4).
Claim No. [1] located near the posterolateral side of
Walk-behind lawn mower as described in section. [3] The engine (6) is connected to the cutting blade housing (4).
A walk-behind lawn mower according to claim 1, which is disposed on the lateral outer side of the lawn mower.