JPH08280223A - Powered mower - Google Patents

Abstract

PURPOSE: To provide a powered mower capable of cutting weeds to small pieces. CONSTITUTION: This powered mower installing a mowing blade 3 rotated by a driving device 4 at the tip part of a supporting rod 1, comprises constituting the mowing blade by installing plural blade plates 32, 32... successively at a prescribed interval with each vertical posture in parallel to a shaft 31 supported toward horizontal direction, and making the shaft rotated by the driving device 4 and the weeds A cut to small pieces by each of the blade plates 32.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power type mower for cutting weeds.

[0002]

2. Description of the Related Art FIG. 4 shows an example of a conventional power-type mower. In this conventional power-type mower, one disc-shaped blade is provided at the tip of a support handle 101 having a predetermined length. On the other hand, the grass cutting blade 103 is attached in a horizontal posture, while the prime mover (engine) 104 is attached to the rear end portion of the support handle 101. or,
Power from the prime mover 104 is transmitted to the grass cutting blade 103 through the support handle 101. Then, in this conventional power-type mower, the mower blade 10 is moved to the left and right by holding the handle 111 while the mower blade 103 is rotated at a high speed in the horizontal plane by the prime mover 104.
Weed A can be cut with 3.

By the way, in the conventional power-type mower shown in FIG. 4, the grass cutting blade 103 has a single blade and is designed to rotate in a horizontal plane. Often used by cutting. When the weeds that have been cut are left unattended, they are not only unsightly, but also pests easily propagate. Therefore, as shown by the symbol B, after accumulating in one place (or several places), they are put in a bag and discarded. Or incinerate.

[0004]

However, in the conventional power type mower shown in FIG. 4, since the mowing blade 103 rotates in the horizontal plane, it is suitable for cutting the vicinity of the root of the weed A, but its height is high. If the weed A with a high degree is cut near the root, the cut weed A remains long. If the cut weeds are left as they are, problems such as aesthetic appearance and pest generation will occur. Therefore, the cut weeds are collected in one place (or several places) and then discarded or incinerated. A series of work is required. Also, if weeds are long, they are bulky, and therefore a large number of bags are required for disposal. On the other hand, when they are incinerated, since they are raw grass, they are difficult to burn and smoke pollution occurs. In this way, weeds cut with conventional power mowers can be
There is a problem that it takes a lot of time to put in a bag, dispose of or incinerate, and the work is troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the problems when the above-mentioned conventional power-type mower is used, and an object thereof is to provide a power-type mower capable of cutting the weeds into fine pieces.

[0006]

The present invention has the following constitution as means for solving the above problems. That is, the present invention is a power type mower in which a tip of a support handle is provided with a mowing blade that is rotated by a driving device, wherein the mowing blade has a large number of blade plates on a shaft supported in the horizontal direction. Are sequentially arranged in a vertical posture at predetermined small intervals, and the shaft can be rotated by a driving device.

As the drive device, an appropriate device such as an electric motor or an engine can be adopted. Further, each blade plate may be made of a steel plate, and may have an appropriate shape such as a disk shape, a disk shape in which notches are formed at appropriate positions, or a rectangular shape. Each blade plate has, for example, a thickness of 1 to
When a plate material having a size of about 2 mm is used, the cutting function is sufficiently obtained as long as it is a weed, even if the cutting edge is not formed. The distance between the blade plates is preferably about 3 to 5 mm, for example. A hood may be provided on the outside of the mowing blade,
Further, a wheel may be provided at the tip of the support handle.

[0008]

In the power-type mower of the present invention, the mower is constructed by arranging a large number of blade plates side by side in a vertical posture at predetermined small intervals in sequence. When the weeds are mowed by cutting the weeds, the cutting device may be moved forward while the blades of the grass cutting blades are brought into contact with the weeds while the grass cutting blades are rotated at high speed by the drive device. Then, each blade plate can cut the weeds into small pieces at intervals of the blade plate, and the cut weeds can be sequentially spread into small pieces. At this time, the volume of the weeds cut off becomes extremely small. In addition, when the weeds are evenly spread in a chopped state in this way, it does not become too unsightly if left as it is. In addition, in this power type mower, when the lower end of each blade plate is pushed to a small depth (for example, about 5 to 10 mm) while rotating,
The roots of weeds can be cut.

[0009]

In the power mower of the present invention, weeds can be cut into small pieces with a large number of blade plates that rotate in the vertical plane, so that after cutting the weeds, finely cut pieces are spread. The effect is that it does not become too unsightly even if it is left as it is.
Further, since the volume of the weeds cut off can be reduced, there is an effect that the weeds can be compactly stored in the bag even if they are discarded.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present application will be described with reference to FIGS. As shown in FIG. 1, the power-type mower of this embodiment comprises a support handle 1 provided with a grass cutting blade 3 with a hood 2 and a drive device 4 for rotating the grass cutting blade 3 at the tip thereof. There is.

The support handle 1 is made of a pipe and has a predetermined length (for example, about 1 to 1.5 m). A handle 11 is provided at the rear end of the support handle 1.

The hood 2 has an upper surface plate 21, a rear surface plate 22, and left and right side plates 23, 23, and forms a space for accommodating the mowing blade 3 therein. The width of the hood 2 is 20
It is designed to be about 30 cm.

The support handle 1 is connected to the top plate 21 of the hood 2 while being inclined by an angle of about 30 °.
In this embodiment, the tip of the support handle 1 is fixed to the hood top plate 21 by welding, but in another embodiment, the tip of the support handle 1 is inclined with respect to the hood top plate 21. You may connect it adjustably.

The grass cutting blade 3 is composed of a large number of blade plates 32, 32, ... (26 in total in the illustrated example) arranged on a shaft 31 in sequence at predetermined small intervals. In this embodiment, each blade plate 32 is made of a steel plate and has an elongated rectangular shape having a length of 15 to 25 cm, a width of 5 to 8 cm, and a thickness of about 1 to 2 mm. And this mowing blade 3 is, as shown in FIG. 2, each blade plate 3
A shaft 31 is inserted into the central portion of the blade plate through a spacer 34 having a small thickness (for example, about 3 to 5 mm) between the Nos. 2 and 32 to integrate them. Further, in this embodiment, the blade plates 32, 32 adjacent to each other are sequentially displaced by 90 ° with respect to each other, and are fixed in a state of being assembled in a cross shape in a side view (see FIG. 3). There is. The blade plates 32 and the shaft 31 are fixed to each other by appropriate rotation stopping means. In another embodiment, each blade plate 32 may be made of a steel plate and have a disc shape, or a disc having a plurality of cutouts.

A shaft 31 of the mowing blade 3 is rotatably supported by both side plates 23 of the hood 2.

The drive unit 4 is a motor 4 in this embodiment.
1 is used. A belt 44 is hung between the pulley 42 of the motor 41 and the pulley 43 of the shaft 31. Then, in the driving device 4, when a switch (not shown, but it is preferable to provide it on the handle 11 portion) is turned on after the plug 45 is connected to the power source, the power from the motor 41 causes the grass cutting blade 3 to move. It is designed to rotate at a high speed in the direction of the arrow (clockwise). In another embodiment, the drive device 4 may be replaced with the motor 41, and an engine, which is conventionally used, may be used.

A scraping blade 7 is attached to the front end of the hood top plate 21 in the vicinity of the position where the outer end of each blade plate 32 moves. This scraping blade 7 removes a weed that moves upward while being entwined with the tip of each blade plate 32.
The blade plate 32 works together with the tip of the blade plate 32 to scrape the blade plate 32. A small gap 8 is formed between the scraping blade 7 and the front end of the hood top plate 21. The gap 8 is for preventing the back surface side of the scraping blade 7 from being clogged with soil.

At the front portion of the hood 2, a pair of left and right wheels 5 and 5 are provided. The wheels 5 and 5 are supported by arms 6 and 6, respectively. In addition, each arm 6,6
In this embodiment, the hood side plates 23, 23 are
The height of the wheels 5 and 5 cannot be adjusted by welding to the outer surface of the wheel 5. However, in other embodiments, the arms 6 and 6 can be swung up and down, or the shaft of the wheel 5 is fixed. The height of the wheels 5 and 5 may be adjusted by allowing the arms to move up and down.

When performing the mowing work using the power type mower of the illustrated embodiment, the handle 1 is provided at the mowing place.
While holding 1 and grounding each wheel 5, 5,
Energize 1. Then, the mowing blade 3 is rotated at high speed by the drive device 4 in the direction of the arrow in FIG. 3, and in that state, the blade plates 32, 32 of the mowing blade 3 are brought into contact with the weeds A and the mowing machine is manually advanced. Let Then, each of the blade plates 32 can cut the weed A into small pieces, and the cut weeds can be evenly spread into small pieces as shown by reference numeral A'in FIG. become. In this way, when the weeds are finely chopped and evenly spread (state of reference numeral A '), it does not become so uncomfortable to leave it as it is. Also, the bulk of the cut weeds is extremely small, and therefore, even if the cut weeds A'are discarded, they can be compactly stored in the bag. Incidentally, sometimes the weeds A are not cut well by each blade plate 32, and the weeds move upward while being entwined with the tip portion of the blade plate 32, but the tip portion of the blade plate faces the scraping blade 7. Since a scraping action sometimes occurs between the two, the weeds can be reliably shredded. Further, in this power-type mower, when the handle 11 is slightly lowered with the wheels 5 and 5 as fulcrums while rotating the mowing blade 3, the lower end of each blade plate 32 has a small depth (for example, about 5 to 10 mm) on the ground surface. The area becomes scratched, which allows cutting up to the roots of weeds.

[Brief description of drawings]

FIG. 1 is a perspective view of a power type mower according to an embodiment of the present application.

FIG. 2 is an enlarged sectional view taken along the line II-II of FIG.

FIG. 3 is an enlarged sectional view taken along the line III-III in FIG.

FIG. 4 is a perspective view of a conventional power mower.

[Explanation of symbols]

1 is a support handle, 2 is a hood, 3 is a mowing blade, 4 is a drive device,
5 is a wheel, 7 is a scraping blade, 32 is a blade plate, and A is a weed.

Claims (1)

[Claims] 1. A power type mower having a cutting blade (3) which is rotated by a driving device (4) at the tip of a support handle (1), wherein the cutting blade (3) is horizontal. A large number of blade plates (32, 32, ...) Are sequentially arranged side by side at a predetermined small interval on a shaft (31) supported toward A power-type mower, characterized in that it can be rotated by the drive device (4).