JPH0453407A - Method for mowing lawn utilizing tandem type lawn mower - Google Patents

Abstract

PURPOSE:To create beautiful sight on the lawn surface and carry out lawn mowing of golf links, etc., by turning back a tandem type lawn mower having a pair of cutting units attached in the transverse direction at the respective row ends, simultaneously cutting lawn for two rows and forming zebra patterns on the cut surface. CONSTITUTION:A tandem type lawn mower (M) having back wheels 2 which are driving wheels on both sides of a machine body 1, a front wheel 4 through a frame 3 in front of the machine body 1 and a pair of cutting units (U) attached to both sides of the frame 3 at a prescribed interval (W2) in the transverse direction intersecting the forward direction (P) of the machine body 1 at right angles is used and turned back at the cut ends of the respective rows. Lawn for two rows are cut with one row separated using a pair of cutters 8 constructing the cutting units while reciprocating and running the lawn mower (M) to alternately vary the cutting direction of the respective rows and form zebra patterns on the cut surface.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lawn mowing method that uses a two-speed lawn mower to alternately change the cutting direction of each row to form a zebra pattern on the mowed surface. It is something.

[Conventional technology]

In recent years, lawn mowing at golf courses has been carried out not only for the original purpose of simply cutting the long lawn short, but also for mowing methods that aim to make the cut grass surface more aesthetically pleasing. When the lawnmower is turned back at the cutting edge and mowed while moving back and forth, the cutting direction of each row is reversed and a common cutting pattern appears every other row, resulting in a zebra pattern when viewed as a whole. . This lawn mowing method is commonly known as "zebra mowing."

However, when carrying out this ``zebra mowing J'', conventionally it was carried out using a self-propelled lawn mower (single mower) equipped with only one cutting unit.

Therefore, in addition to poor work efficiency, the operator has to drive the mower based on the cutting line of the previous row after mowing each row, which increases the number of runs of the lawn mower. Due to the accumulation of errors in the running position of the lawn mower with respect to the mowing line, the mowing line gradually meanders away from the straight line, and when looking at the two mowed surfaces as a whole, the boundary line of each row meanders, resulting in an unsightly appearance. There is also.

[Problems to be Solved by the Invention] The present invention improves the efficiency of reaping when carrying out the above-mentioned "zebra reaping", and also prevents the boundary line of each row from becoming greatly meandering. 2
The challenge is to form an attractive zebra pattern on the surface.

[Means to solve the problem]

In order to solve the above problems, the means adopted by the present invention are as follows:
A double-barreled lawn mower is used, in which a pair of cutting units are attached to the machine body at a predetermined interval in a lateral direction perpendicular to the direction of movement of the machine body, and the lawn mower is folded back at the cutting edge of each row. This involves mowing two rows separated by one row at the same time while moving back and forth.

[Action of the invention]

Since a double-barreled lawn mower is used in which a pair of cutting units are installed at a predetermined interval in the lateral direction, the efficiency of mowing work is doubled compared to a single mower with one cutting unit.

In addition, since the number of times the lawn mower is run based on the cutting line of the row immediately before finishing mowing is halved, the accumulated error in the running position of the lawn mower with respect to this cutting line is also halved, and the two mowed areas The boundary lines of each strip no longer meander, and even if they meander, the degree of meandering is small.

〔Example〕

Hereinafter, the present invention will be explained in more detail with reference to Examples.

First, with reference to FIGS. 1 and 2, an overview of a dual-barreled lawn mower M used for carrying out the present invention will be explained.

This lawnmower M has a three-wheel structure in which rear wheels 2, which are drive shafts, are attached to both sides of a machine body 1, and a front wheel 4 is attached to the front of the machine body 1 via a frame 3. Cutting units 7 and U are attached to both sides of the cutter. A U-shaped frame 7 is attached to the center of the am 5 attached laterally to the base end of the frame 3 via a bin 6, and the cutting unit U is attached to this frame 7 in a towable manner. It is being That is, the lawn mower M includes a pair of cutting units U in the machine body 1.
are a series type installed at predetermined intervals in the lateral direction perpendicular to the traveling direction P of the aircraft body 1.

When the width of the cutters 8 constituting the cutting unit U is (W+) and the interval between the cutters 8 is (W2), the relationship (W+ > WZ) holds between them.

Next, to briefly explain the transmission system of the driving force of the cutter 8, the drive shaft (not shown) of the engine 9 mounted on the fuselage 1 and the input shaft of the gear box 11 mounted on the side of the fuselage 1. (not shown), and the output shaft (not shown) of the gear box 11 and the input shaft (not shown) of the gear box 12 mounted on the lower part of the frame 3 connect the connecting rod 13. The power transmitted to each output shaft 14 provided on both sides of the gear box 12 is transmitted through each gear in the gear box 15 provided on the side of each cutting unit U. The cutter 8 is driven and rotated by the rotation shaft 8a of the cutter 8. Further, the rear wheels 2 are driven and rotated by the driving force of the engine 9.

Note that 16 in the figure indicates a handle attached to the body 1.

FIGS. 3(a) and 3(b) are diagrams for explaining the mowing situation of the lawn mower M on the outbound and return trips, respectively,
When explaining the lawn mowing work using the above-mentioned double-barreled lawn mower M with reference to the same figure, as shown in the same figure (A),
In order to perform the (n)th reaping, the cutter 8 is overturned by a predetermined width on the (n-1)th row that has been cut just before, and the reaping line L of this row is
When the lawn mower M is run based on , two rows separated by the middle row, which is the uncut portion A, are mowed at the same time.

Next, to perform the (n+1)th reaping, use the same figure (b).
As shown in , the lawn mower M is turned back at the cutting end of the row that has been mown the (n)th time, and the cutter 8 of one cutting unit 7) is used to cut the lawn for the (n)th time, which is the previous one. The reaping line L1 of the (n)th row that was positioned in the unharvested part A between each row that was cut immediately before.
When the lawn mower M is run based on , it is just before (n
) Two rows separated from the row that was mown at the same time are harvested at the same time. In this (n+1)th reaping,
The width of the uncut part A between each row that was cut immediately before (n)th time is equal to the interval (W2) between the double-sided vines 8, which is wider than the width of the cutter 8 (W, ). Because it is small, it does not grow uncut areas.

Thereafter, the lawn mowing work is performed by repeating the above-mentioned work. When mowing the lawn in this way, as shown in Fig. 4, a zebra pattern is formed on the mowing surface in which the mowing patterns of each row are alternately different through the linear boundary line L2, and the mowing 2
Improves the beauty of the surface. This zebra pattern is the same as when mowing the lawn with a single mower.

In this way, when mowing the lawn using the dual-barreled lawn mower M, the work efficiency is doubled compared to when the mower has only one cutting unit U. Furthermore, since the number of times the lawn mower M is run based on the cutting line L1 of the row immediately before it has finished mowing is halved, the cumulative error in the running position of the lawn mower M with respect to this cutting line L is halved. Boundary line L of each row on the two cut sides with respect to the reference line! The amount of deviation is halved. As a result, the boundary line L2 does not meander significantly.

Furthermore, the lawn mowing method of the present invention can be realized by using a conventionally used double-barreled lawn mower and removing only the intermediate cutting unit and mowing the lawn as described above.

〔Effect of the invention〕

As described above, the present invention uses a double-barreled lawn mower having a structure in which a pair of cutting units are mounted on the machine body at a predetermined interval in the lateral direction perpendicular to the direction of movement of the machine body. By turning back the lawn mower at the cutting edge and running it back and forth, mowing one row apart at the same time,
This lawn mowing method creates a zebra pattern on the cutting surface by alternating the cutting direction of each row, which doubles the work efficiency compared to lawn mowing methods using a single mower, and at the same time, the boundary line of each row is significantly meandering. This prevents the cut from forming, and allows an attractive zebra pattern to be formed on the two cut sides.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a dual-barreled lawn mower 9M used for carrying out the present invention, Fig. 2 is a right side view thereof, and Fig. 3 (A)
, (B) are diagrams for explaining the mowing situation of the lawnmower M on the forward and return trips, respectively, and FIG. 4 is a diagram showing two surfaces mowed by the lawn mowing method of the present invention. The explanations of the symbols of the main parts constituting the present invention are as follows. A: Uncut area M: Lawn mower P: Direction of movement of the machine U: Cutting unit Ll: Reaping line L2: Boundary line 1: Machine body

Claims (1)

[Claims] A double-barreled lawn mower is used, in which a pair of cutting units are attached to the machine body at a predetermined interval in a lateral direction perpendicular to the direction of movement of the machine body, and the lawn mower is folded back at the cutting edge of each row. Lawn mowing using a double-barreled lawn mower characterized by mowing two rows separated by one row at the same time while moving back and forth, thereby alternating the cutting direction of each row and forming a zebra pattern on the cutting surface. Method.