JP3078829U - Mower cutter structure - Google Patents

Abstract

(57) [Summary] [PROBLEMS] The present invention solves the problems of conventional mower cutters, and provides a mower cutter structure with high safety, mowing work efficiency and high durability. The present invention employs a structure in which a metal cutter is added to a plastic cutter and the metal cutter can cut around the plastic cutter. In the above structure, in addition to being able to exhibit higher mowing work efficiency, the metal cutter and the plastic cutter are fixed to each other and protected, so that the metal cutter does not easily break and the plastic cutter does not easily wear. , The durability can be greatly improved.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to the structure of a mower cutter, specifically, a plastic cutter and a metal cutter, which have higher safety, cutting effect, and durability.

[0002]

[Prior art]

 As shown in FIG. 1, the conventional mower cutter structure has a single mower 11 fixed to a mower rotating shaft 10. This type of conventional metal cutter has a high cutting effect, is sold in the market, and has been used for a long time. However, this type of design still has problems in practicality and safety. The cause is as follows.

[0003] First, a mower often strikes a stone or ground other than grass or tree branches at high speed during work, and a sheet-like metal cutter 11 fixed to a central mower rotating shaft 10. Can crack and fly while spinning at high speed, causing serious accidents. As described above, the conventional metal cutter 11 loses many customers due to safety problems.

[0004] Second, when trying to cut a branch that is too thick with the metal cutter 11, a situation occurs in which the branch is cut without being cut, and it takes time to remove it. In addition, the motor of the mower may be damaged by such troubles.

FIG. 2 shows another conventional mower cutter structure. A thick, plastic cutter 12 having an inclined portion 13 is fixed to the mowing machine rotating shaft 10. This kind of plastic cutter 12 has high durability and relatively high safety, but still has problems. The cause is as follows.

First, since the material of the plastic cutter 12 is soft, the effect of cutting grass and branches at the inclined portion 13 is not sufficiently high.

Second, if the inclined portion 13 of the plastic cutter 12 hits a stone or the ground for a long period of time, the inclined portion 13 of the plastic cutter 12 is easily worn, and the cutting effect is further reduced.

[0008]

[Problems to be solved by the invention]

 The present invention solves the problems of conventional mower cutters and provides a mower cutter structure with higher safety, mowing work efficiency and higher durability.

[0009]

[Means for Solving the Problems]

 In the present invention, a metal cutter is added to the plastic cutter, and a structure is adopted in which the metal cutter can be cut around the plastic cutter to enhance the cutting effect and impact resistance. Further, in the above structure, the life of the metal cutter is extended by the protection of the plastic cutter, a higher cutting effect can be exhibited, and the wear of the plastic cutter is reduced. Furthermore, since the metal cutter and the plastic cutter are fixed and protected from each other, the risk of breaking the metal cutter can be greatly reduced.

[0010]

[Embodiment of the invention]

 The techniques and methods adopted by the present invention will be described in detail in the following embodiments and figures, and the features of the present invention will be described. First, as shown in FIG. 3, the embodiment of the present invention includes one plastic cutter 20, one metal cutter 30 and the like.

The plastic cutter 20 has a plate shape, and has an inclined portion 21 around its periphery. Further, there is one shaft hole 22 at the center of gravity.

The metal cutter 30 has a metal sheet shape and has an inclined portion 31 around its periphery. Further, there is one shaft hole 32 in the center of gravity of the metal cutter 30. When the metal cutter 30 is fixed below the plastic cutter 20, the inclined portion 31 of the metal cutter 30 is located along the inclined portion of the plastic cutter 20, and can cut grass and the like. The above is an outline of the positional relationship and structure of the components of the present invention.

With the above structure, when mowing work is performed according to the present invention, the inclined portion 31 of the metal cutter 30 located along the inclined portion 21 of the plastic cutter 20 is operated, and the cutting effect of the metal cutter is maximized. In addition to this, the inclined portion 21 of the plastic cutter 20 can be prevented from being worn by a thick branch or the like, and the metal cutter 30 can be prevented from being broken by utilizing the sufficient impact resistance of the plastic cutter 20. Thereby, the present invention can obtain high cutting effect and durability.

It should be noted here that the plastic cutter 20 and the metal cutter 30 of the present invention are fixed to each other and protected from each other, thereby greatly reducing the risk of the metal cutter 30 breaking. You can do it.

As shown in FIG. 4, in the structural design of the present invention, the metal cutter 30 is wrapped in the plastic cutter 20 to enhance the impact resistance and the protection effect on the metal cutter. This effect is also included in the category of the present invention.

Next, FIG. 5 shows another embodiment. A plurality of layers of metal cutters 30 and a plurality of layers of plastic cutters 20 are alternately stacked, and the widths of the inclined portions 21 and 31 become narrower from the bottom to the top. It has the cutting effect of the present invention, and the impact resistance and cutting effect are further enhanced. In addition, according to the present invention, a plurality of layers of the metal cutter 30 and a plurality of layers of the plastic cutter 20 can be combined by using the through holes 40 on the metal cutter 30 and the protruding fixing columns 41 below the plastic cutter 20. .

[0017]

[Effect of the invention]

 In the present invention, a metal cutter is added to the plastic cutter, and a structure is adopted in which the metal cutter can be cut around the plastic cutter.This protects the plastic cutter, extending the life of the metal cutter and achieving higher mowing work efficiency. did it.

[Brief description of the drawings]

FIG. 1 is a rupture diagram of a conventional metal cutter.

FIG. 2 is a three-dimensional external view of a conventional plastic cutter.

FIG. 3 is an exploded view of the present invention.

FIG. 4 is an explanatory view of an embodiment of the present invention.

FIG. 5 is a cross-sectional view of another embodiment of the present invention.

[Explanation of symbols]

 (10) Mower rotating shaft (11) Metal cutter (12) Plastic cutter (13) Inclined portion (20) Plastic cutter (21) Inclined portion (22) Shaft hole (30) Metal cutter (31) Inclined portion (32) Shaft hole (40) Through hole (41) Projection fixing column

Claims (5)

[Utility model registration claims] 1. A plurality of plastic cutters having a thickness are stacked on the outside of a plurality of metal cutters, and a slanted portion is provided around the plastic cutters. A mower cutter structure characterized in that it can be exposed and cut around. 2. The mower cutter structure according to claim 1, wherein a sharply inclined portion is provided around the metal cutter. 3. The mower cutter structure according to claim 1, wherein the cutter is wrapped on both sides with plastic, and the outer periphery in the rotating direction of the metal cutter is exposed and cut at the outer periphery of the plastic cutter. . 4. The mower cutter structure according to claim 1, wherein the plurality of metal cutters and the plurality of metal cutters alternately overlap to have a step-cutting effect. 5. The metal cutter has a plurality of through holes, and a plurality of projecting fixing columns corresponding to the plastic cutter can be fitted into the through holes of the metal cutter, and the metal cutter and the plastic cutter can be combined and fixed. Item 2. A mowing cutter structure according to Item 1.