JP3149886U - Nylon cord for mowing - Google Patents

Abstract

[PROBLEMS] To provide a nylon cord for mowing that has a higher sharpness than before and can exhibit a sufficient sharpness for various types of grass. A nylon cord for mowing 10 includes a first mowing blade 12 in which a plurality of projecting portions projecting in a first direction in a short direction are formed in a longitudinal direction and a second mowing blade different from the first direction. And a second mowing blade 14 formed by forming a plurality of projecting portions projecting in the longitudinal direction in the longitudinal direction. Moreover, the protrusion part of the 1st mowing blade 12 and the protrusion part of the 2nd mowing blade 14 are arrange | positioned at zigzag form in the longitudinal direction. [Selection] Figure 1

Description

  The present invention relates to a nylon cord for mowing used in a cord type mowing device.

  Conventionally, as one of the nylon cords for mowing used in cord type mowing devices, there is known a nylon cord for mowing that can prevent the cord from being cut and the cords welded together by applying a lubricant to the uneven surface. (For example, refer to Patent Document 1).

Japanese Utility Model Publication No. 60-85118

  However, although the nylon cord for mowing described in Patent Document 1 can improve wear resistance and strength, it may not be able to exhibit sufficient sharpness depending on the type of grass.

  The present invention has been made to solve such conventional problems, and has a higher cutting performance than before, and a nylon for mowing that can exhibit sufficient cutting performance for various types of grass. The purpose is to provide code.

  (1) In the present invention, a first mowing blade in which a plurality of projecting portions projecting in the first direction in the short direction are formed in the longitudinal direction, and projecting in a second direction different from the first direction. It is the nylon cord for mowing characterized by having a 2nd mowing blade formed by forming two or more protrusion parts in a longitudinal direction.

  (2) The present invention is also characterized in that the protruding portion of the first mowing blade and the protruding portion of the second mowing blade are arranged at the same position in the longitudinal direction. Nylon cord for mowing.

  (3) The present invention is also characterized in that the protrusions of the first mowing blade and the protrusions of the second mowing blade are arranged in a staggered manner in the longitudinal direction. Nylon cord for mowing.

  (4) In the present invention, the second direction in which the protruding portion of the second mowing blade protrudes is a direction opposite to the first direction in which the protruding portion of the first mowing blade protrudes by 180 degrees. It is a nylon cord for mowing according to any one of the above (1) to (3).

  (5) The present invention also includes a third mowing blade formed with a plurality of projecting portions projecting in a third direction different from the first direction and the second direction in the longitudinal direction; A fourth mowing blade formed in the longitudinal direction with a plurality of projecting portions projecting in a fourth direction different from the direction, the second direction, and the third direction, and the first mowing blade The protruding portion, the protruding portion of the second mowing blade, the protruding portion of the third mowing blade, and the protruding portion of the fourth mowing blade are arranged in a staggered manner in the longitudinal direction, The nylon cord for mowing according to any one of (1) to (4).

  (6) The present invention is also characterized in that the plurality of protrusions are formed by cutting a part of a corner of a nylon cord having a polygonal cross section in the short direction. ) Is a nylon cord for mowing.

  According to the nylon cord for mowing according to the present invention, it is possible to obtain an excellent effect that the sharpness can be enhanced more than before and sufficient sharpness can be exhibited for various types of grass.

It is the fragmentary perspective view which showed a part of the nylon cord for mowing which concerns on this embodiment. It is sectional drawing which follows the AA line in FIG. It is sectional drawing of the nylon cord for mowing which made the front-end | tip part of the protrusion part an acute angle. It is sectional drawing of the nylon cord for mowing which arrange | positioned the protrusion part of a 1st mowing blade, and the protrusion part of a 2nd mowing blade in the same position in a longitudinal direction. It is the fragmentary perspective view which showed a part of the nylon cord for mowing which concerns on other embodiment. (A) It is sectional drawing which follows the AA line in FIG. (B) It is sectional drawing which follows the BB line in FIG.

  Hereinafter, the nylon cord for mowing which concerns on embodiment of this invention is demonstrated in detail using drawing. FIG. 1 is a partial perspective view showing a part of a nylon cord 10 for mowing according to this embodiment, and FIG. 2 is a cross-sectional view taken along line AA in FIG.

  The nylon cord 10 for mowing has a first mowing blade 12 and a second mowing blade 14. The first mowing blade 12 is formed by arranging a plurality of protruding portions 12 </ b> A protruding in the first direction (upward in FIG. 2) in the short direction of the mowing nylon cord 10 in the longitudinal direction of the mowing nylon cord 10. . Further, the second mowing blade 14 projects in a second direction (downward in FIG. 2) that is 180 degrees opposite to the projecting direction (first direction) of the projecting portion 12A of the first mowing blade 12. A plurality of protruding portions 14 </ b> A are arranged in the longitudinal direction of the mowing nylon cord 10.

  In this embodiment, a rectangular cylinder with a rectangular cross section in the short direction is used as a base, and two corners in the longitudinal direction of the base are 180 ° opposite positions (on a diagonal line). A plurality of protrusions 12A and 14A are formed by cutting oval dents at one corner in a staggered manner (at alternate positions) at predetermined intervals. Thereby, as shown in FIG. 2, the protruding portion 12A of the first mowing blade 12 and the protruding portion 14A of the second mowing blade 14 are staggered in the longitudinal direction of the mowing nylon cord 10 (in staggered positions). Be placed.

  In other words, the protruding portion (convex portion) 12A of the first mowing blade 12 is formed at substantially the same position as the elliptical recess (concave portion) in the second mowing blade 14 in the longitudinal direction of the nylon cord 10 for mowing. Further, the protruding portion (convex portion) 14 </ b> A of the second mowing blade 14 is formed at substantially the same position as the elliptical recess (concave portion) in the first mowing blade 12 in the longitudinal direction of the mowing nylon cord 10. That is, since the convex portion of one mowing blade and the concave portion of the other mowing blade are formed at substantially the same position in almost the entire longitudinal direction of the nylon cord 10 for mowing, the thickness of the nylon cord 10 for mowing is almost uniform. And sufficient strength can be secured.

  As described above, the nylon cord 10 for mowing according to the present embodiment includes the first mowing blade 12 formed by forming a plurality of projecting portions 12A projecting in the first direction in the short direction in the longitudinal direction, and the first A nylon cord for mowing characterized by having a second mowing blade 14 formed with a plurality of projecting portions 14A projecting in a second direction different from the direction of is there.

  According to the nylon cord 10 for mowing according to the present embodiment, since it has the first mowing blade and the second mowing blade, the sharpness can be improved more than before, and sufficient sharpness can be exhibited for various types of grass. it can.

  In addition, since the protrusions 12A of the first mowing blade 12 and the protrusions 14 of the second mowing blade 14 are arranged in a staggered manner in the longitudinal direction, the nylon cord 10 for mowing is secured while ensuring a sufficient sharpness. The thickness can be made uniform over almost the entire region in the longitudinal direction, and the strength of the nylon cord 10 for mowing can be increased as compared with the conventional case.

  Further, the second direction in which the projecting portion 14 of the second mowing blade 14 projects is a direction that is 180 degrees opposite to the first direction in which the projecting portion 12A of the first mowing blade 12 projects. When the nylon cord 10 is used, the mowing nylon cord 10 is not shaken, and the sharpness can be sufficiently exhibited.

  Further, since the plurality of projecting portions 12A and 14A are formed by scraping a part of a corner of a nylon cord having a polygonal cross section (for example, a quadrangular shape), the projecting portions are easily processed. In addition, manufacturing costs can be reduced. Moreover, it is easy to form the shape of the protrusion sharply by leaving a part of the corner, and the sharpness can be increased.

  In addition, the nylon cord for mowing according to the present invention is not limited to the configuration of the nylon cord 10 for mowing according to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention. It is.

  For example, the method of forming the “projection” according to the present invention is not limited to the example shown in the above embodiment, and a cylindrical nylon cord is used as a base material, and a predetermined interval is provided on the outer peripheral surface of the base material. A plurality of protrusions (such as saw teeth) may be formed in a staggered manner (in alternating positions). With such a forming method, the degree of freedom of the shape of the protrusion can be increased, and the protrusion can be formed in accordance with various types of grass.

  Further, the shape of the “projection” according to the present invention is not limited to the shape shown in the above embodiment. For example, as shown in FIG. 3, the tip of the projection has a sharper shape. It may be. If it is such a shape, sharpness may be able to be improved more.

  Further, the arrangement of the “protruding portions” according to the present invention is not limited to the arrangement shown in the above embodiment. For example, as shown in FIG. 4, the protruding portions 12A and the second of the first mowing blade 12 are arranged. You may arrange | position the protrusion part 14A of the mowing blade 14 in the same position in a longitudinal direction.

  Moreover, like the nylon cord 20 for mowing shown in FIGS. 5 and 6, the first mowing blade 22 formed with a plurality of projecting portions 22A projecting in the first direction in the longitudinal direction, and projecting in the second direction In addition to the second mowing blade 24 having a plurality of protruding portions 24A formed in the longitudinal direction, a plurality of protruding portions 26A protruding in the third direction different from the first direction and the second direction are formed in the longitudinal direction. The third mowing blade 26, and a fourth mowing blade formed with a plurality of projecting portions 28A projecting in the fourth direction different from the first direction, the second direction, and the third direction. 28, the protruding portion 22A of the first mowing blade 22, the protruding portion 24A of the second mowing blade 24, the protruding portion 26A of the third mowing blade 26, and the protruding portion 28A of the fourth mowing blade 28 are cut into nylon. Staggered in the longitudinal direction of the cord 20 It may be arranged.

  With such a configuration, it is possible to further enhance the sharpness while securing the strength. The number of mowing blades is not limited to two or four, and may be three or five or more.

  The nylon cord for mowing according to the present invention can be applied to a cord-type mowing device.

10, 20 Nylon cords for mowing 12, 22 First mowing blade 14, 24 Second mowing blade 26 Third mowing blade 28 Fourth mowing blade 12A, 14A, 22A, 24A, 26A, 28A Protrusion

Claims (6)

A first mowing blade in which a plurality of projecting portions projecting in the first direction in the short direction are formed in the longitudinal direction;
The second mowing blade is formed by forming a plurality of projecting portions projecting in the second direction different from the first direction in the longitudinal direction,
Nylon cord for mowing. The protrusion of the first mowing blade and the protrusion of the second mowing blade are:
It is arranged at the same position in the longitudinal direction,
The nylon cord for mowing according to claim 1. The protrusion of the first mowing blade and the protrusion of the second mowing blade are:
It is arranged in a staggered manner in the longitudinal direction,
The nylon cord for mowing according to claim 1. The second direction in which the protruding portion of the second mowing blade protrudes is:
The projecting portion of the first mowing blade is 180 degrees opposite to the first direction in which the projecting portion projects,
The nylon cord for mowing according to any one of claims 1 to 3. A third mowing blade in which a plurality of projecting portions projecting in a third direction different from the first direction and the second direction are formed in the longitudinal direction;
A fourth mowing blade formed by forming a plurality of projecting portions in the longitudinal direction projecting in a fourth direction different from the first direction, the second direction, and the third direction;
The protruding portion of the first mowing blade, the protruding portion of the second mowing blade, the protruding portion of the third mowing blade, and the protruding portion of the fourth mowing blade are:
It is arranged in a staggered manner in the longitudinal direction,
The nylon cord for mowing according to any one of claims 1 to 4. The plurality of protrusions are
The short direction cross section is formed by cutting a part of the corner of a polygonal nylon cord,
The nylon cord for mowing according to any one of claims 1 to 5.

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