JPH0530834A - Mower - Google Patents

Abstract

PURPOSE:To obtain a mower capable of cutting even forward lodged lawn short without uncut remaining lawn. CONSTITUTION:Auxiliary cutting blades 7 in which many bar blades 10, rotated and driven about transverse shaft centers (Y) are installed at a small interval side by side are provided in front of a mower deck 5 having internally installed cutting blades 6, rotated and driven about vertical shaft centers (X).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mower mounted mainly on a mid-mount type lawnmower.

[0002]

2. Description of the Related Art Heretofore, as a mower of this type, there have been many mower decks equipped with a plurality of cutting blades which rotate around a vertical axis as disclosed in, for example, Japanese Patent Application Laid-Open No. 57-65124. It is used.

[0003]

In such a conventional mower, in the forward rotation phase portion of the cutting blade, the grass that has fallen forward due to the trail of the front wheel or the like is mowed (mowing in the direction in which the grass fell). ), The finish is poor and streaks remain (streaking). It is an object of the present invention to eliminate the above drawbacks and improve the finish after lawn mowing.

[0004]

A feature of the present invention is that an auxiliary cutting blade is provided in front of the mower deck, in which a large number of bar blades that are driven to rotate about a horizontal axis are arranged in parallel at small intervals. It is in.

[0005]

According to the above construction, in front of the mower deck, a large number of auxiliary cutting blades that are driven to rotate about the axis of the abscissa have the function of roughly slashing the grass stepped on by the front wheels in the vertical direction and causing the grass. is there.

[0006]

According to the present invention, therefore, even grass that has fallen forward due to stepping on the front wheels or the like is less likely to be mowed by the preliminary cutting action of the auxiliary cutting blade in front of the mower deck. Due to the action, there is no leftover cutting or long grass, and the finish is better.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a riding lawn mower will be described below with reference to the drawings. As shown in FIG. 4, a riding lawnmower is configured by connecting a mower 4 to a lower abdomen of a traveling machine body 3 having front wheels 1 and rear wheels 2 so as to be able to move up and down.

The mower 4 incorporates three cutting blades 6 which are rotationally driven about the longitudinal axis X in a mower deck 5 which also serves as a frame. In front of the mower deck 5, a lawn is roughly hit vertically. There are three sets of auxiliary cutting blades 7 for cutting and raising grass. More specifically, the auxiliary cutting blade 7 is configured such that a large number of bar blades 10 rotatable around a horizontal axis Y are arranged side by side at a front portion of a mower deck through a support bracket 8 at small intervals and are driven to rotate by a hydraulic motor 9. The cutting blades 6 are located in front of the forward rotation phase portion of each cutting blade 6. Reference numeral 11 is a cover for covering the bar blade.

A bevel gear case 12 for driving the cutting blade is provided on the upper part of the mower deck 5. The bevel gear case 12 is of a hermetically sealed type and is connected to an air tank 14 provided in the traveling machine body 3 by a conduit 13. The air tank 14 suppresses the case internal pressure from rising due to the temperature rise of the lubricating oil in the bevel gear case 12, and prevents the seal from coming off and the lubricating oil from leaking due to the increase in the internal pressure.

The driving means for the auxiliary cutting blade 7 may use a dedicated electric motor or a chain driving mechanism and a belt driving mechanism which are interlocked with the driving system of the cutting blade 6. Furthermore, the lawn mower is not limited to the riding type lawn mower, and may be a walking type lawn mower.

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

[Brief description of drawings]

1 is a cross-sectional plan view of Mower.

FIG. 2 is a vertical sectional side view of a main part.

FIG. 3 is a side view of the main part.

FIG. 4 is an overall side view of a riding lawn mower.

[Explanation of symbols]

 5 Mower deck 6 Cutting blade 7 Auxiliary cutting blade 10 Bar blade X Vertical axis Y Horizontal axis

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

Claims (1)

Claims: 1. A mower deck (5) containing a cutting blade (6) which is rotationally driven about a vertical axis (X), is rotationally driven around a horizontal axis (Y) in front of the mower deck (5). Multiple bar blades (1
A mower provided with an auxiliary cutting blade (7) formed by arranging 0) in parallel at a small interval.