JPH0622622A - Front-mount type lawn mower - Google Patents

Abstract

PURPOSE:To obtain a lawn mower capable of obtaining mowed trace along the ground. CONSTITUTION:In the objective lawn mower, supporting arms 9 and 9 capable of carrying out longitudinally rockable control are provided in front of the machine body and simultaneously plural single grade type mowers 4 are provided to these supporting arms 9 and 9 side by side each relatively movably in the vertical direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front mount type lawnmower equipped with a mower having a cutting blade for mowing, which rotates about a vertical axis, in a front portion of a machine body.

[0002]

2. Description of the Related Art Conventionally, as a lawn mower of this type, a mower provided at the front of the machine body is provided with three cutting blades in parallel with the housing, and a pair of left and right mowers for adjusting the cutting height are provided at the front of the mower. It is known to have a gauge wheel or the like (see JP-A-3-191711).

[0003]

According to the above configuration, 3
The mower, which has a large cutting width with a single cutting blade inside, has a pair of left and right gauge wheels that contact the ground. If there is, the cutting height becomes uneven within the cutting width and the finish is deteriorated. The present invention has been made in view of the above circumstances, and provides a lawnmower capable of obtaining a good cutting trace with a uniform cutting height by devising a mower structure provided at the front of the machine body. is there.

[0004]

In order to achieve the above object, the present invention is characterized in that a support arm capable of adjusting front and rear swing is provided at a front portion of a machine body, and a single grade type mower is provided on the support arm. Each of the plurality is arranged side by side so as to be movable relative to each other in the vertical direction.

[0005]

According to the above characteristic structure, the plurality of mowers provided on the front part of the machine body are arranged side by side so as to be relatively movable in the vertical direction. Since the mower can be used to divide and capture the lawn mowing ground, and the unevenness of the ground can also be divided, the unevenness of the lawn mowing ground covered by each mower can be small, and it can be almost along the ground. You can mow the lawn.

[0006]

As is apparent from the above description, according to the present invention, it is possible to mow a good finish with a uniform cutting height over the entire cutting width.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 shows a front mount type lawnmower according to the present invention. This lawnmower is provided with a pair of left and right front wheels 1, 1 and rear wheels 2, 2 supported by a front portion of a machine body 3 which is rotated around a longitudinal axis to cut a lawn (a blade). No.) is housed in a housing 6 and is a single-grade type mower 4.
Is equipped with five units. The mower 4 is provided with a pair of left and right caster type gauge wheels 7, 7 for adjusting the lawn mowing height at the front of the mower 4, and at the rear of the mower 4.
The mower 4 is provided with a pair of left and right anti-scalp rollers 8 for preventing the rear edge of the mower 4 from colliding with a projection on the ground.

As shown in FIGS. 1 and 3, the mower 4A arranged in the center has a bracket 13A provided on the upper portion of the housing 6A of the mower 4A, and a free end of a suspension arm 11 which is vertically swingable on the machine body 3. A pair of left and right supporting arms 9 and 9 are supported and connected vertically and swingably within a predetermined range, and are swingable back and forth around a vertical axis, and the supporting arms 9 and 9 and the bracket 13A are connected to each other. The hydraulic cylinders 5, 5 provided on the left and right sides of the front part are interlockingly connected to each other, and the support arms 9, 9 are provided so as to be capable of swinging back and forth around the longitudinal axis. Further, the supporting arms 9 and 9 are divided into a central arm 12 and 12 which is supported and connected to the bracket 13A, and a connecting arm 10 which is connected to the brackets 13 of the mowers 4 which are arranged on the left and right sides. And the central arm 12,
12, and the free ends of the connecting arms 10 ... Are pivotally connected so as to be vertically movable within a predetermined range, as shown in FIG. Accordingly, the five mowers 4 ... Suspended by the suspension arm 11 perform lawn mowing work while moving relative to each other in the vertical direction along the unevenness of the ground. Obtainable. Further, as shown by the chain double-dashed line in FIG. 1, by driving and operating the hydraulic cylinders 5 and 5, the support arms 9 and 9 are moved in the front-rear direction to move the mowers 4 ... 4 can be partially overlapped on the left and right, and lawn mowing work can be performed without leaving uncut material. Since each of the five mowers 4 independently performs lawn mowing work, the winds generated by the cutting blades installed in each mower 4 do not interfere with each other, so that the winds do not intensify. Since the cut grass can be finely divided and evenly distributed on the lawn mowing area, so-called mulching (lawn mowing work in which the cut grass is further shredded and inserted between the planted grass) is performed with good performance. can do.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a plan view showing a mower connecting structure of a front mount type lawnmower according to the present invention.

FIG. 2 is an overall side view of a front mount type lawnmower according to the present invention.

FIG. 3 is a front view showing the mower connecting structure.

FIG. 4 is a vertical sectional front view showing a connecting portion of a connecting link.

[Explanation of symbols] 3 Airframe 4 Mower 9 Support arm

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Fujiwara 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Factory

Claims (1)

[Claims] 1. A support arm (9), (9) capable of adjusting forward and backward swinging is provided at a front portion of an airframe (3), and the support arm (9), (9) has a single-grade mower (4). ), A front-mount lawn mower in which a plurality of) are arranged side by side so that they can be moved relative to each other in the vertical direction.