JP3233260U - Mower and grass catcher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mower in which a disk cutter is attached to a tip of a main shaft to prevent mowed weeds from scattering around. SOLUTION: A grass support 3 is attached to a spindle 2 at an angle on the left side thereof, the grass support is formed into a substantially triangular shape having a tip side edge 7 and a spindle side edge, and the apex side is overlapped with a disk cutter 1. Further, the tip side edge is arranged with a slight gap between it and the upper surface of the disk cutter. [Selection diagram] Fig. 1

Description

The present invention relates to a mower, particularly a mower equipped with a grass catcher so as not to take the trouble of cutting and collecting weeds scattered around.

In recent years, there are many cases where a mower is used when cutting weeds that grow outdoors. When weeds are cut with a mower, the roots of the weeds are not removed, but it is difficult to cut weeds in areas covered with weeds, such as fields, riverbeds, and slopes of embankments, with a sickle. Since it is hard work, it can be mowed relatively easily and efficiently using a mower.

FIG. 5 is a specific example showing a general mower that has been commercially available. An engine (b) is attached to the hand side of the main shaft (a), and a disk cutter (a) is attached to the tip of the main shaft (a). C) is provided. The disk cutter (c) is rotated by the engine (b), and the weeds are cut off when the cutting blade formed on the outer periphery hits the weeds.
The main shaft (a) is made of a hollow pipe, a drive shaft is inserted into a hole provided in the central shaft portion, and an engine (b) and a disk cutter (c) are connected by the drive shaft.

In addition, a handle (d) is attached to the hand side of the main shaft (a) so that the mowing work can be performed by holding the handle (d). There are various shapes and materials of the disk cutter (c), and they can be replaced depending on the type of weeds to be cut. A safety cover (e) is attached to the tip side of the spindle (a) to prevent pebbles from hitting the operator as the disk cutter (c) rotates.
By the way, when weeds are cut with a mower, they are cut at a height of 1 to 2 cm from the ground, and the roots of the weeds and the stems of 1 to 2 cm are left as they are.

In the mower, the main shaft (a) extends diagonally upward from the horizontal disk cutter (c) that is almost parallel to the ground, and the operator can work while standing and holding the handle (d).
However, the weeds that have been cut fall down to the surroundings and are left unattended, so when the cutting work is completed, weeds scattered around must be collected and treated. When mowing, in addition to the actual mowing work, the work of collecting weeds that have been cut and scattered around is also a difficult task.

There are endless places where weeds grow. For example, when weeds growing on the slope of an embankment (bank) are cut, the cut weeds fall and flow into the river. A large amount of weeds are washed downstream along with the flow of the river, and if left unattended, it is a big problem, so when performing cutting work, weeds that fall into the river and are washed away must be picked up. Hard work is forced.
In addition, weeds scattered on the slope of the bank must be collected using a rake.

In recent years, many important mowers have been developed, and various new technologies are known. The "mowing machine with a weeding function" according to Japanese Patent Application Laid-Open No. 2002-204610 is a mowing machine capable of simultaneously performing a mowing process and a weeding process when performing a tall weed mowing operation.

Therefore, the mower cutting blade rotates to mow the grass in the mowing process, and the mowed grass is collected on the weeding tray. The grass left behind by the rotation of the brush is sent to the grass collecting plate, passed through the grass collecting duct by the blower's air, and collected in the grass collecting bag. As a result, a series of operations from the mowing process to the weeding process can be performed with a single machine.
However, this "mowing machine with a weeding function" is a large device and cannot be easily used personally in each household.
"Mowing machine with grass collecting function" according to JP-A-2002-204610

As described above, the conventional mower has the above-mentioned problems. The problem to be solved by the present invention is this problem, and it is not necessary to collect the weeds cut by the disk cutter later, that is, to provide a mower equipped with a grass catcher so that the weeds cut are not scattered around. do.

The mower of the present invention is configured such that a disk cutter is attached to the tip of the spindle, an engine or a motor is provided at the hand of the spindle, and the disk cutter can be rotated by the power of the engine or the motor. Therefore, the basic structure of the mower is the same as the conventional one.
In addition, if the cutting blade of the disk cutter attached to the tip of the spindle hits a stone and a part of it is damaged or a pebble is blown off, a safety cover is often attached to prevent debris and pebbles from hitting the operator. However, this safety cover may be omitted.

By the way, in the mower of the present invention, a grass catcher is attached to the left side of the main shaft on the upper surface side thereof so as to partially overlap the disk cutter. Since the disk cutter rotates counterclockwise, it is arranged on the left side of the spindle when viewed from the operator side and at an angle.
The grass holder is a plate-like body, the material of which is a metal plate or a plastic plate, and the shape is not particularly limited, but it is a roughly triangular shape extending along the main axis, and its position and inclination angle are changed as necessary. It is attached to the spindle so that it can be used.

A grass catcher is attached to the mower of the present invention. Therefore, the weed tray can be placed on the cut weeds without being scattered around by the rotation of the disk cutter, and can be put together in a predetermined area. Therefore, it becomes easier to clean up the weeds that have been cut, and the mowing work can be performed efficiently.
For example, when weeds that grow on the slopes of agricultural canals are cut, the weeds that are cut are received on the grass tray and rarely fall into the river and flow. This frees you from the task of picking up weeds from the river, as you would with a conventional mower.

When weeds that grow on almost flat places such as roadsides and parks are cut, the weeds that are cut are gathered together in the area where the disk cutter moves and do not scatter around. In addition, the grass holder can also serve as a conventional safety cover, and therefore the safety cover can be eliminated.
The grass holder is made of a metal plate or a plastic plate, its manufacturing cost is low, and it can be easily attached to the main shaft of an existing mower.

Top view of the tip of the mower with the disk cutter attached. Side view of the tip side of the mower with the disk cutter attached. A cross-sectional view taken along the line AA of FIG. A concrete example showing a grass receiver. Conventional general mower.

The basic form of the mower is the same as that shown in FIG. 5, with a disk cutter attached to the tip of the spindle and an engine on the hand side of the spindle. Therefore, the disk cutter is rotated by the power of the engine, and the engine and the disk cutter are connected via a drive shaft inserted into a hollow hole of the spindle.
1 and 2 are examples showing the tip end portion (disk cutter side) of the mower, and show a plan view and a side view, respectively.

In the figure, 1 is a disk cutter, 2 is a spindle, 3 is a weed holder, and 4 is a safety cover. A plurality of cutting blades 5, 5 ... Are formed on the outer periphery of the disk cutter 1, and therefore. When the disk cutter 1 rotates, the cutting blades 5, 5, ... Hit the stems of the weeds, and the weeds can be cut down.

The safety cover 4 is attached to the spindle 2 at a predetermined distance from the disk cutter 1, and the position of the safety cover 4 is fastened with a band 6 so that the position can be changed.
If the disk cutter 1 rotating at high speed hits pebbles or the like during mowing work, the pebbles or the like are blown off, and the safety cover 4 is attached at an appropriate position so that the pebbles or the like do not hit the operator. However, in the mower of the present invention, the safety cover 4 may not be attached.

In the mower of the present invention, the grass receiver 3 is attached to the main shaft 2. The grass holder 3 is attached so as to fill the space formed between the main shaft 2 and the disk cutter 1, but does not come into contact with the rotating disk cutter 1 and provides a slight gap.
The spindle 2 is tilted at a predetermined angle with respect to the upper surface of the disk cutter 1, so that the shape of the grass receiver 3 can fill the space formed between the spindle 2 extending incliningly and the disk cutter 1. It is roughly a triangle.

Then, as shown in the figure, the disk cutter 1 rotates in the counterclockwise direction (arrow direction), so that the grass receiver 3 is attached to the left side of the spindle 2 when viewed from the operator, and the tip side edge 7 thereof. Is inclined downward and extends so as to be close to the upper surface of the disk cutter 1.
Bands 8 and 8 are provided on the grass receiver 3, and by screwing both bands 8 and 8, they can be fixed at an appropriate position on the main shaft 2 and can be adjusted to an arbitrary inclination angle.
The disk cutter 1 of the mower generally rotates counterclockwise, but in the mower that rotates clockwise (clockwise), the grass receiver 3 is attached to the right side of the spindle when viewed from the operator.

FIG. 3 shows a cross section taken along the line AA of FIG. The side edges 7 are close to each other, leaving a slight gap 13. A drive shaft 14 is inserted into the hollow hole of the main shaft 2, and a grass receiver 3 is attached by a band 8 wound around the outer circumference of the main shaft 2.
By the way, the weeds cut by the disk cutter 1 rotating counterclockwise gather in the space 10 formed between the disk cutter 1 and the grass receiver 3, and hardly scatter around. Then, when the space 10 is filled with weeds, it is extruded to the outer periphery of the disk cutter 1.

FIG. 4 is a specific example showing the grass receiver 3 alone, and its shape is a substantially triangular shape as shown in the figure. The tip side edge 7 and the spindle side edge 11 have a predetermined crossing angle θ, and the apex portion is a substantially triangular shape with the deletion. The specific shape of the triangle is not limited, but the two sides of the tip side edge 7 and the main shaft side edge 11 are lengthened to form a substantially triangular shape that is tilted sideways.

Small holes 12 and 12 are provided at both ends of the grass receiver 3, and screws for attaching to the bands 8 and 8 wound around the main shaft 2 are inserted into the holes 12 and 12. The main shaft side edge 11 is attached along the main shaft 2, and the grass receiver 3 is attached with an appropriate inclination angle β so that a slight gap 13 remains between the main shaft side edge 11 and the upper surface 9 of the disk cutter 1.
Therefore, the weeds cut by the disk cutter 1 rotating in the counterclockwise direction are pushed up onto the grass tray 3, and the weeds can be moved to another place as they are and dropped from the grass tray 3 to the ground.

For example, when weeds growing on an inclined slope of a bank are cut, the cut weeds can be placed on a grass tray 3 and dropped on the horizontal upper surface of the bank. Therefore, unlike conventional mowers, weeds that have been cut do not scatter around and fall into waterways. It also eliminates the need to use a rake to collect and clean weeds scattered on sloping slopes.

On the other hand, when weeds growing in a wide area such as a field or a park are cut, the weeds that are sequentially cut by the disk cutter 1 are accumulated in the space 10 formed between the disk cutter 1 and the grass receiver 3, but the space. When 10 is full, it is pushed out from the outer circumference of the disk cutter 1. Therefore, the cut weeds are not scattered around and are extruded from the space 10 in a cohesive state.
The grass receiver 3 of the present invention prevents the weeds that have been cut from scattering and has the same effect as the safety cover. The pebbles blown by the disk cutter 1 can hit the grass holder 3 and function so as not to be blown to the operator side.

1 Disc cutter 2 Main shaft 3 Grass holder 4 Safety cover 5 Cutting blade 6 Band 7 Tip side edge 8 Band 9 Top surface
10 spaces
11 Main shaft side edge
12 holes
13 Gap
14 drive shaft

Claims (3)

In a mower with a disk cutter attached to the tip of the spindle, the grass support is attached to the spindle on the left or right side of the spindle according to the rotation direction of the disk cutter, and the grass support is attached to the tip side edge. A mower that has a roughly triangular shape with a side edge of the main shaft, and is arranged so that the apex side overlaps with the disk cutter and the tip side edge is arranged with a slight gap between it and the upper surface of the disk cutter. The mower according to claim 1, wherein the grass cutter is attached to a main shaft via a band, and its position and inclination angle can be adjusted. In the grass holder attached to the main shaft of a mower with a disk cutter attached to the tip, the grass holder is a roughly triangular shape having a tip side edge and a main shaft side edge, and the grass holder is attached at an angle to the main shaft, and the upper surface of the disk cutter is attached. A grass cutter for a mower, which is characterized by being able to be placed so as to intervene a slight gap between the two.

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