JPH0449850Y2 - - Google Patents

Description

[Detailed description of the invention] (1) Industrial application field The present invention relates to an improvement of a root cutting machine for mechanically cutting roots of grass, etc.

(2) Prior Art In general, in order to grow grass, it is necessary to periodically cut the roots or remove dead grass and grass called satatsu.

Root pruning allows air to reach the roots of the grass,
Drainage also occurs smoothly, which allows for better grass growth.

Traditionally, root cutting and removal of weeds have been done exclusively by hand.

Therefore, golf courses with especially large areas,
Gardens require a great deal of time and effort to maintain.

Therefore, we developed a car body that can be driven by an engine.
This root cutting machine is equipped with a rotor with blades fixed in a radial pattern, which can be simultaneously rotated by the engine, and which can make linear cuts in the grass with the rotor while traveling under the control of the operator. Invented.

However, in such a root cutting machine, the raised lacerations formed on the surface of the grass by the rotor are left undisturbed, which is inconvenient for the grass itself and for players such as golfers.

(3) Purpose This invention was created in view of the above-mentioned circumstances, and here we present a root cutting machine that can level out raised fissures formed on surfaces such as turf back to their original state. This is what we provide.

(4) Configuration In a root cutting machine equipped with a rotor 22 for cutting roots of grass, etc., a width approximately equal to the working width of the rotor 22 is provided behind the rotor 22 when viewed from the direction of movement of the root cutting machine. A roller 30 is provided which presses the raised fissures formed on the surface of the grass or the like by the rotor 22, and a scraper 32 having a width approximately the same as the width of the roller is provided above the roller. A bent portion 32a bent at an obtuse angle is formed on the lower edge of the scraper 30 and extends in the tangential direction of the outer circumference of the roller 30, and a bent portion 32a that is vertically symmetrical with the bent portion 32a is also formed on the upper edge of the scraper 32.
The above-mentioned root cutting machine equipped with a leveling device, characterized in that it has a shape of b.

(5) Embodiments Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

1 and 2 show a root cutting machine according to the present invention.

This root cutter includes wheels 12 made to be easy to run on the lawn 10, an engine 14 mounted on the wheels 12, a control handle 16, and a lateral drive rotated by the power from the engine. It has a shaft 18.

The wheels 12 have low pressure and a small tread pattern so that they can easily run on grass.

Power from the engine 14 is transmitted to the lateral drive shaft 18 through a sprocket, chain, etc. (not shown) in the case 20, so that the lateral drive shaft 18 can be rotated in the same direction or in a different direction than the wheels 12.

A rotor 22 is attached to and fixed to this lateral drive shaft 18. The rotor 22 is fixed by a pin 23 or the like and is therefore removable.

As shown in FIG. 3, the rotor 22 is made up of a plurality of discs 24 connected by a hollow rod 26, and several plate-like blades 28 radially fixed to each disc 24.

Two sets of hollow rods 26 of the rotor 22 are inserted into the left and right sides of the horizontal drive shaft 18, respectively, and fixed with pins 23.

When the engine 14 is started, the wheels 12 and the rotor 22 rotate, and while the vehicle is traveling on the lawn 10 by operating the handle 16 of the operator, the rotor 22 is applied to the surface of the lawn as shown in FIG. A linear raised fissure 29 is formed, and the root is cut.

In the present invention, a leveling device as shown in FIGS. 6 and 7 is attached in order to level out the prominence of the grass surface caused by this fissure 29 and bring it into the state shown in FIGS. 4 to 5. has been done.

That is, in the figure, 30 is a roller provided behind the rotor 22 when viewed from the direction of movement of the root cutter. This roller 30 can press the raised tear 29 formed on the surface of the grass or the like by the rotor 22 and return it to approximately the original height of the grass surface. Further, 32 is a scraper provided above the roller 30 and having approximately the same width as the roller. Such a scraper 32
This allows soil adhering to the roller surface to be scraped off.

34 is a bracket that supports the roller and scraper 32, and is fixed to the rear part of the machine frame 36 of the root cutter, which extends to the rear of the root cutter.

The roller 30 is rotatably attached to the bracket 34 via a shaft 35, and the scraper 32 is fixed with a bolt and nut 40 via an elongated hole 38 so as to be vertically adjustable.

As shown in the figure, the upper and lower edges of the scraper 32 are bent, thereby making it easier to scrape off soil adhering to the roller 30 and improving rigidity.

(6) Effects According to the present invention, a roller 30 is provided at the rear of the rotor 22 when viewed from the direction of movement of the root cutter, which presses the raised fissures formed on the surface of the grass or the like by the rotor.
Because of this, it is possible to lower and even out the raised fissures caused by the root cutting during the root cutting work, ground the grass roots, and prevent them from being harmful to the growth of the grass. , it is possible to avoid any hindrance to playing golf or the like on the grass.

Further, since the creper 32 having a width approximately the same as the width of the roller is provided above the roller 30, soil adhering to the roller can be automatically removed and leveling work by the roller can be smoothed.

Furthermore, the rollers 30 and the creper 32 can also act as shields, which can prevent soil, dirt, etc. from flying off and prevent the operator at the rear of the aircraft from getting hit by the flying objects. can.

In addition, since the bent portion 32a bent at an obtuse angle is formed on the lower edge of the scraper 32 and extends in the tangential direction of the outer circumference of the roller 30, when scraping soil adhering along the outer circumference of the roller 30, the bent portion 32a is bent at an obtuse angle. By increasing the rigidity of the tip edge of the scraper 32 that receives the pressing force of the attached soil that is being carried around, and by scraping off the attached soil while guiding it in the tangential direction of the outer circumference, the pressing force due to the attached soil can be reduced as described above. The tip of the scraper 32 has higher rigidity and can be removed smoothly.
Since it has vertically symmetrical bent portions 32a and 32b, it has achieved practical effects such as being able to be used inverted.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view of a root cutting machine equipped with a leveling device according to the present invention, and Fig. 2 is a -
FIG. 3 is a cutaway sectional view of a line portion. FIG. 3 is a perspective view of a portion of the rotor. FIG. 4 is a schematic cross-sectional view showing a raised laceration created by the rotor of the root cutter, and FIG. 5 is a schematic cross-sectional view showing the laceration after it has been leveled by a leveling device. FIG. 6 is a front view of the leveling device, and FIG. 7 is a sectional view taken along the line -- in FIG. 10... Grass surface, 12... Wheel, 14... Engine, 18... Lateral drive shaft, 22... Rotor, 28
...Rotor blade, 30...Roller, 32...Scraper, 34...Bracket, 36...Machine frame.

Claims (1)

[Scope of utility model registration request] In a root cutting machine equipped with a rotor 22 for cutting roots of grass, etc., the root cutting machine has a width substantially equal to the working width of the rotor 22 behind the rotor 22 when viewed from the direction of movement of the root cutting machine, and A roller 30 is provided that presses the raised fissures formed on the surface of the grass or the like by the rotor 22, and a scraper 32 with approximately the same width as the roller is provided above the roller. A bent part 32a bent at an obtuse angle is formed and extends in the tangential direction of the outer circumference of the roller 30, and a bent part 32 having a vertically symmetrical shape with the bent part 32a is also formed on the upper edge side of the scraper 32.
The above-mentioned root cutting machine equipped with a leveling device, characterized in that it has a shape of b.