JP2017012048A - Grass mower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve visibility of a work range and improve endurance of a nylon cord and a drive source.SOLUTION: The grass mower includes: a drive source; a rod part arranged with the drive source; a nylon cord cutter arranged in one edge of the rod part, driven by the drive source to be rotated, and performing mowing with a cord-shaped blade part arranged on an outer periphery; and a scatter prevention cover covering a part of the outer periphery of the nylon cord cutter. The grass mower further includes an illumination part arranged in at least one of an inner side face of the scatter prevention cover and an edge face on the one edge side in the rod part.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a mower that cuts grassland such as a garden.

  As a working machine for cutting weeds and the like, a mower having a blade portion that is rotated by a driving source such as a motor or an engine is known. As a blade portion of a mower, two types are generally used: a metal tip saw and a nylon cord cutter having a string-like nylon cord extending from a cord reel as shown in Patent Document 1. A nylon cord cutter rotates a cord reel with a drive source, so that the nylon cord cuts weeds and the like. Further, a scattering protection cover is provided above the cord reel so as to cover the outer periphery of the nylon cord cutter, and weeds and the like cut by the nylon cord are prevented from scattering to the operator.

  When the nylon cord cutter is used for a long time, the nylon cord is broken by abrasion. Even if the service life of the nylon cord expires due to, for example, the nylon cord being cut due to abrasion, the user can use the mower for a long time by replacing the cord reel.

Japanese Patent Laid-Open No. 2003-230312

  Conventionally, a nylon cord cutter has a difficulty in seeing a rotating cord when mowing the grass, and the cutting range is difficult to understand compared to a metal tip saw. For this reason, nylon cords easily come into contact with obstacles such as trees and walls, damage the surface of the obstacles, unnecessarily load the drive source, shorten the service life, and promote the wear of nylon cords. The problem was that the frequency of replacement was high, and workability was low.

  Moreover, the structure which provided the illumination part in the mower main body was also considered for the purpose of improving the visibility around an operator. However, since the illumination unit is configured to be provided in the middle part of the buttock, which is further above the anti-scattering cover, so that the operation and adjustment of the illumination unit can be easily performed, the illumination unit tries to irradiate the cutting range by the nylon cord. Then the splash protection cover interfered and could not irradiate.

  In order to solve the above-described problems, a mower according to the present invention includes a drive source, a hook portion provided with the drive source, and one end of the hook portion, and is rotationally driven by the drive source and provided on the outer periphery. In a grass cutter provided with a nylon cord cutter that cuts with a cord-shaped blade portion and a scattering protection cover that covers a part of the outer periphery of the nylon cord cutter, the inner surface of the scattering protection cover, or It is provided with the illumination part provided in at least one of the end surfaces of the said one end side in the said collar part.

  Moreover, while the said illumination part is provided in the said end surface, you may be located inside the said scattering prevention cover.

  The illuminating unit may be provided on a half surface of the nylon cord cutter that rotates so that the blade portion moves away from the extending side of the flange portion.

  The illumination unit may irradiate in conjunction with a driving operation for driving the driving source.

  The illumination unit may be composed of a plurality of light emitting members.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the mower which improved the workability | operativity of the nylon cord cutter.

It is explanatory drawing which shows the use condition of the mower used as embodiment of this invention. It is a perspective view of the motor housing in the mower used as an embodiment of the invention. It is a top view of the motor housing in the mower which becomes embodiment of this invention. It is a perspective view of the nylon cord cutter in the mower which becomes embodiment of this invention. The perspective view of the nylon cord cutter in the mower used as the modification of this invention

  The mower according to the embodiment of the present invention will be described below.

  As shown in FIG. 1, the mower 1 according to the embodiment includes a motor housing 2 that houses a rotating motor that is supplied with electric power from an external power source as a driving source, and a hook portion 3 that extends obliquely upward rearward from the motor housing 2. The handle 3 is provided at the end opposite to the end where the motor 2 is provided with respect to the flange 3.

  Further, as shown in FIG. 2, the mower 1 is provided with a nylon cord cutter 5. The nylon cord cutter 5 includes a cord reel 51 connected to the mower 1 and a string-like nylon cord 52 extending on the outer periphery of the cord reel 51, and the cord reel 51 is rotated by the motor 2. The nylon cord 52 rotates to cut grass.

  A scattering protection cover 6 is provided above the cord reel 51 so as to cover particularly the rear side of the outer periphery of the rotating nylon cord cutter 5. For this reason, when the nylon cord 52 performs a cutting operation, weeds and the like that are cut off are prevented from being scattered around and being applied to the operator. In the embodiment of the present invention, since the nylon cord cutter 5 rotates clockwise as viewed from above in the rotation range 8, the nylon cord cutter 5 rotates downstream of the direction in which the collar portion 3 extends in the rotational direction of the nylon cord cutter 5. On the half (left half), weeds, etc. scatter forward, while on the right half, scatter backwards. For this reason, when a worker performs mowing work, in order to prevent weeds and the like from scattering to the worker side, cutting is performed on the left half surface (cutting range) of the rotation range 8. Since it is biased to the rear right side of the cutter 5, weeds and the like can be prevented from scattering from the right half surface to the operator side, and work in the cutting range is not hindered. As shown in FIG. 4, the illumination unit 7 is provided on the front left side of the nylon cord 52 on the inner surface of the scattering protection cover 6. The illuminating unit 7 is composed of a light emitting member such as an LED, a light bulb, or an organic EL. Further, when the operator performs the mowing work, the motor is driven by turning on the drive switch of the motor provided in the handle 4, the nylon cord cutter 5 rotates, and the mowing work is started. In the embodiment of the present invention, the illumination unit 7 is set to light up in conjunction with the switch operation, and the illumination unit 7 is also started to light up when the operator turns on the drive switch of the motor.

  According to the above configuration, since the mower 1 is configured to include the illumination unit 7 on the inner surface of the scattering protection cover 6, the light emitted from the illumination unit 7 does not interfere with the scattering protection cover 6 and the nylon cord 52. It is possible to irradiate the cutting range, and it is possible to improve the visibility during work. For this reason, when working with the mower 1, the operator is prevented from contacting the nylon cord 52 with an obstacle such as a tree or a wall, and the surface of the obstacle is damaged or an unnecessary load is applied to the motor. It is possible to prevent problems such as shortening the service life and promoting the wear of the nylon cord 52 and increasing the replacement frequency of the cord reel 51, thereby improving workability. In addition, the lighting unit 7 is turned on in conjunction with the mowing work switch, so that the operator or the surroundings can visually recognize that the work is being performed. In addition, since the illumination unit 7 is provided on the inner surface of the scattering protection cover 6, the trouble of cutting the wiring accidentally or obstructing the work is eliminated without the wiring coming out of the motor housing 2. In addition, it is possible to prevent the mowing grass from adhering to the surface of the illumination unit 7 and fading the illumination effect.

  Further, in the present embodiment, the scattering protection cover 6 covers the entire lower surface of the motor housing 2 and covers the cord reel 51 over the entire circumference, but this is a part of the lower surface of the motor housing 2 and one direction of the cord reel 51. It is good also as a structure which covers only this and a part of lower surface of the motor housing 2 is exposed. In this case, even if the illumination unit 7 is not necessarily provided on the inner surface of the protective cover, it is possible to irradiate the cutting range without interfering with the scattering protection cover 6 by being provided on the lower surface of the motor housing 2. It is clear that the above effects can be brought about.

  Moreover, since the illumination part 7 is provided in the rotation half surface downstream from the direction where the collar part 3 extends in the rotation direction of the nylon cord cutter 5, that is, the left half surface, the left side which is the cutting range of the mower 1 is effectively provided. Irradiation can be performed and workability can be improved.

  Next, a modification of the present invention will be described with reference to FIG. As shown in FIG. 5, the illumination units 7 may be provided at a plurality of locations on at least one of the inner surface of the scattering protection cover 6 and the lower surface of the motor housing 2. With such a configuration, it is possible to further reduce the influence of the light irradiated from the illumination unit 7 being interfered by the nylon cord cutter 5, and the workability is improved.

  Although the present invention has been described above by taking the embodiment as an example, it is understood by those skilled in the art that the present invention can be variously modified within the scope of the claims. For example, in the present embodiment, the drive source is a motor housed in the motor housing 2, but this may be constituted by an engine using gasoline as fuel. In addition, the switch of the illumination unit 7 may be provided separately from the drive switch, and a configuration in which multiple levels of illuminance can be selected is also possible. In the present embodiment, the cutting blade is the nylon cord cutter 5 having the nylon cord 52 around the cord reel 51. However, in order to improve the visibility of the cutting range even with a cutting blade of another configuration. It is applicable to. For example, a metal cutting blade that is suitable for a cutting blade having a configuration in which a plurality of blade portions are spaced apart from each other in the circumferential direction. What is necessary is just to provide in the position which is not.

DESCRIPTION OF SYMBOLS 1 Grass mower 2 Motor housing 3 Eaves part 4 Handle 5 Nylon cord cutter 51 Cord reel 52 Nylon cord 6 Scatter protection cover 7 Illumination part 8 Rotation range

Claims (5)

A driving source;
A collar portion provided with the drive source;
Nylon cord cutter attached to one end of the collar, rotated by the drive source, and trimmed by a cord-shaped blade provided on the outer periphery;
In a mower equipped with a scattering protection cover that covers a part of the outer periphery of the nylon cord cutter,
A mowing machine comprising: an illuminating unit provided on at least one of an inner surface of the scattering protection cover or an end surface on the one end side of the collar portion.   2. The mower according to claim 1, wherein the illuminating unit is provided on the end face and is located inside the scattering protection cover.   The said illumination part is provided in the half surface which rotates so that the said blade part may distance from the side where the said collar part extends in the rotation surface of the said nylon cord cutter, The Claim 1 or Claim 2 characterized by the above-mentioned. Mower.   4. The mower according to claim 1, wherein the illumination unit irradiates in conjunction with a driving operation for driving the driving source. 5.   The mower according to any one of claims 1 to 4, wherein the illuminating unit includes a plurality of light emitting members.