JPH09224445A - Mower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mower used with the feeling of a vacuum cleaner. SOLUTION: The mower consists of a mowing head 10 housing a flare blade 18 rotated around a horizontal shaft 16 at the fixed height from the ground and a main pipe 12 supporting an engine 20 extended by inclining backward and upward from the mowing head 10 and housing a driving shaft 22 transmitting the power of the engine 20 to the flare blade 18 inside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push-pull type mower.

[0002]

2. Description of the Related Art As a simple mower, there is known a so-called mower of a shoulder type or a backpack type. However, the brush cutter must swing the machine to the left and right while keeping the cutting blade at a predetermined cutting height, and the weight of the machine must be supported by the body (hand) during this period.

[0003]

Therefore, it takes some skill to use the brush cutter well, and at the same time,
The degree of fatigue is severe. The present invention eliminates such drawbacks, and provides a mower that is light and easy for anyone to use.

[0004]

SUMMARY OF THE INVENTION Under the above problems, the present invention provides a mowing head for accommodating a flare blade which rotates around a horizontal axis at a constant height above the ground, and extends rearward and obliquely upward from the mowing head. (EN) Provided is a mower including a main pipe which supports an engine and which internally houses a drive shaft for transmitting power of the engine to a flare blade.

Further, the present invention provides the construction described above, in which a constant height of the flare blade is secured by a ground roller provided on the mowing head, and a construction in which a handle is projected to the rear of the engine.

By adopting the above-mentioned means in the present invention, the flare blade can be forcibly rotated while ensuring a constant cutting height, so that the grass can be mowed only by pushing and pulling the mowing head that houses it. In other words, it is a mower that can be used like a vacuum cleaner, and anyone can easily mow with a light force.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a mowing machine showing an example of the present invention, FIG. 2 is an explanatory view of a drive system, and FIG. 3 is a sectional view of a main part of a mowing head. The mowing machine according to the present invention includes a mowing head 10 and a main pipe 12.

The mowing head 10 has a dome-shaped cover 14
The horizontal shaft (mounting shaft) 16 is mounted inside the
A large number of flare blades 18 are attached to the attachment shaft 16. The main pipe 12 extends obliquely upward and rearward from the mowing head 10 to support the engine 20, and a drive shaft 22 for transmitting the power of the engine 20 to the flare blade 18 is inserted therein.

The mowing head 10 and the main pipe 12 are connected to each other by forming a joint boss 24 at the center of the rear surface of the mowing head 10 and inserting the tip of the main pipe 12 into the joint boss 24 to integrate them with a screw or a fastener. An engine 20 is attached to the rear end or the rear portion of the main pipe 12.

To supply power to the flare blade 18, a transmission shaft 26 is provided in parallel with the mounting shaft 16 and the drive shaft 22 is provided.
Is transmitted to the transmission shaft 26 by a bevel gear mechanism 28 provided inside the joint boss 24 or the like.

Power supply from the transmission shaft 26 to the mounting shaft 16 is transmitted by a gear mechanism 30 provided on one side thereof. It is preferable that the bevel gear mechanism 28 and the gear mechanism 30 are not provided in the cover 14 in consideration of wrapping of grass and the like (the cover 1
4 is for the flare blade 18 only). In this case, the bevel gear mechanism 28 and the gear mechanism 30 are preferably covered with the auxiliary cover 32. Further, a cutout window 34 for taking in the grass stem is formed on the front surface of the cover 14.

As described above, since the power of the engine 20 is transmitted to the mounting shaft 16 to rotate the flare blade 18, if the main pipe 12 is pushed (or pulled) just like a vacuum cleaner in this state, The mowing head 10 moves to perform mowing. The flare blade 18 may be rotated in either the upcut or downcut direction of the grass stem.

By the way, in this case, the frame blade 18 must be secured at a constant height above the ground. Therefore, in this example, the ground roller 36 is provided in front of and behind the flare blade 18 to secure the ground roller 36. Therefore, the ground roller 36
The cutting height is the distance between the ground contact point and the working outer diameter of the frame blade 18, and this distance is set to an optimum value.

It is also conceivable that the shaft of the ground roller 36 can be adjusted up and down to adjust the cutting height. Further, only one ground roller 36 may be provided in front of or behind the frame blade 18. Furthermore,
Wheels may be used instead of rollers.

In addition, a handle 38 having a shape that can be easily gripped by the hand may be extended behind the engine 20. This is better balanced and easier to hold and work, but at this time, from the mowing head 10 to the handle 38.
Needless to say, the length up to the gripping portion and the inclination angle are set to those that facilitate the work.

[0016]

Since the present invention has been described above, the following effects can be expected. a) Since the mowing head is grounded, it is not necessary to support this weight by hand, and the work can be performed with a light force. b) Since the cutting height of the flare blade is always kept constant, anyone can mow without requiring skill. c) Mowing work can be done simply by pushing and pulling the mowing head, which makes clean mowing easier. d) The grass is cut while being cut by the flare blade, so that the grass is shattered, and the subsequent grass collecting work is unnecessary.

[Brief description of drawings]

FIG. 1 is a perspective view of a mower showing an example of the present invention.

FIG. 2 is an explanatory diagram of a drive system of a mower showing an example of the present invention.

FIG. 3 is a cross-sectional view of a main part of a mower showing an example of the present invention.

[Explanation of symbols]

 10 Mowing Head 12 Main Pipe 16 Horizontal Axis 18 Flail Blade 20 Engine 22 Drive Axis 36 Grounding Roller 38 Handle

Claims (3)

[Claims] 1. A mowing head for accommodating a flare blade rotating around a horizontal axis at a constant height above the ground, and a rearward and obliquely upward direction extending from the mowing head to support an engine, and the power of the engine is internally provided to the flare blade. A mower consisting of a main pipe that houses a transmission shaft. 2. The mower according to claim 1, wherein a constant height of the flare blade is ensured by a ground roller provided on the mowing head. 3. The mower according to claim 1, wherein a handle is projected to the rear of the engine.