JP2003169518A - Safety cover of cord bush cutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the safety cover of a bush cutter, which can prevent the scattering of small stones, grass pieces, or tree pieces, by the high speed rotation of cutting cords in a bush-cutting work, enables the safe and easy work, and can easily cut and arrange turfs, or grasses. <P>SOLUTION: The scattering-preventing cover is attached to the shaft of the bush cutter at a place near to the upper portion of the cutting unit of the bush cutter with a scattering-preventing cover-attaching member. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention installs a safety cover unit near the top of a cutting unit in order to prevent pebbles and debris from cutting cords rotating at high speed from scattering to the operator of a mower. Moreover, the present invention is for cutting and arranging turf, grass, etc. performed by a cord type mower, and by installing this scattering prevention cover near and parallel to the upper part of the cutting unit of the mower, Due to the rotation and the repulsive action of the cut grass and grass, and the wind pressure generated by the cutting cord, the shatterproof cover surface can move in a stable and parallel manner with respect to the cutting surface, making it easy to mow grass and grass. It can be done.

[0002]

2. Description of the Prior Art A safety cover of a mower is provided on the rear side of a cutting unit as shown in FIG. 6b so as to correspond to a metal disc blade, and rotates at high speed with respect to the operator of the mower. Insufficient function of the reaping blade to prevent pebbles and shavings from jumping up. Especially in cord-type mowing work, since the turning radius of the cutting cord is larger than that of the metal disc blade, it is necessary to further separate the safety cover from the cutting unit, so the function of the safety cover is greatly impaired, and clothes are soiled during mowing work. In addition, splashing on the face was very dangerous.
In addition, cord-type mowers are not suitable for this work because it is not easy to keep the cutting unit parallel to the cutting surface due to the repulsion of the cutting cord and grass when cutting grass and grass.

[0003]

Since the attachment position and size of the conventional shatterproof cover are not compatible with cord-type mowers, it is possible to prevent the operator of the mower from jumping up pebbles and vegetation. Since the function is not sufficient, the clothes of the mowing operator become dirty and scattered to the face and the like, which is very dangerous. Also, cord-type mowers are not suitable because it is not easy to mow grass and grass.

[0004]

DISCLOSURE OF THE INVENTION In order to protect an operator of a mower from the cutting cords of a mowing machine rotating at high speed, the present invention is designed to scatter near the top of a cutting unit of a mowing machine. Attach the protection cover to the shaft of the mower with the shatterproof cover attachment.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is a safety cover for a cord type mower which is designed to prevent the operator of the mower from jumping up pebbles and fragments of grass and trees. In order to install the shatterproof cover 1 in the vicinity of the upper part of 3, the scatterproof cover 1 is attached to the shaft rod 5 of the mower via the shatterproof cover mounting portion 4. Scattered material is suppressed below the shatterproof cover surface, and since the angle between the shaft and shatterproof cover surface is large, there is almost no jumping up to the operator of the mower, and safe mowing work is possible. . In order to match the usability of the operator of the mower, Fig. 5
As shown in c to c ′, a fitting for adjusting the position is provided at the attachment portion of the shatterproof cover so that the position in front of the shatterproof cover can be adjusted. The shatterproof cover can be made lightweight by using a perforated plate of a size that does not allow the passage of small stones or vegetation, or a net-like metal or synthetic resin to reduce weight and improve workability. In addition, the anti-scattering cover is further improved by bending the front surface slightly upward as shown in A of FIGS. 3 and 4 and by bending the rear part slightly downward as shown in B. The shape of the shatterproof cover is, as viewed from the operator of the mower as shown in FIG. 2, a flat plate having a left and right area slightly wider than the length of the cutting cord normally used from the side to the rear in the rotation direction of the cutting unit, Alternatively, as shown in FIG. 5, by forming a shape that slightly bulges from the wide portion toward the center and the opposite surface bulges slightly from the center toward the periphery, the scattering prevention function is improved. As shown in FIG. 4, scattering can be sufficiently prevented even if it is only on the rotational direction side of the cutting unit when viewed from the operator of the mower, and the weight and operability are improved.

[0006]

[Effects of the Invention] A scattering prevention cover is installed in the vicinity of the upper part of the cutting unit to prevent scattering and splashing of pebbles and fragments of grass and trees from a cutting cord that rotates at high speed in a mower. Since the angle with the shaft is large, there is almost no jumping up to the operator of the mowing machine, and safe mowing work is possible. In addition, this scatter preventive cover makes it easier to cut grass and grass, which is difficult with cord-type mowers. Since the shatterproof cover surface can be stably moved in parallel, it is easy to trim grass and grass.

[Brief description of drawings]

[Fig. 1] Cutting unit and safety cover unit (planar)
FIG.

[Fig. 2] Cutting unit and safety cover unit (planar)
FIG.

FIG. 3 is a side view of a cutting unit and a safety cover unit (peripheral part is bent).

FIG. 4 is a plan view of a cutting unit and a safety cover unit (a peripheral portion is bent, and a scattering prevention cover is provided only on a rotation direction side of the cutting unit when viewed from an operator).

FIG. 5 is a side view of a safety cover unit capable of adjusting a curved surface and an angle.

FIG. 6 is an execution view a of the mowing work. (B is a conventional example)

[Explanation of symbols]

1 Scatter prevention cover 2 cutting code 3 rotors 4 Anti-scatter cover attachment part 5 axis rod 6 Scatter prevention cover position adjustment part

Claims (4)

[Claims] 1. A shatterproof cover attachment part is provided near the upper part of the cutting unit consisting of the cutting cord and the rotor to prevent pebbles and fragments of grass and grass caused by the cutting cord rotating at high speed from jumping up to the operator of the mower. Safety cover for cord-type mowers with a safety cover unit consisting of a shatterproof cover. 2. The shape of the shatterproof cover is viewed from the operator of the mower, and from the side to the rear of the rotation direction of the cutting unit, a flat plate having a left and right area slightly wider than the length of a normally used cutting cord is used. , A shape that slightly rises from the wide part toward the center and the opposite surface rises slightly from the center toward the narrow peripheral part, or bend the front of the shatterproof cover slightly upward and slightly lower the rear Bending it to the side improves the splash-up and scattering prevention function. In addition, in order to improve lightness and operability in mowing work, the safety of the cord type mower is characterized by installing a shatterproof cover only on the rotation direction side of the cutting unit in order to improve the operability. cover. 3. A cord-type mower, which is equipped with a metal fitting for adjusting the position of the anti-scattering cover so that the position in front of the anti-scattering cover can be adjusted to suit the convenience of the operator of the mower. Safety cover. 4. A safety cover for a cord-type mower that can easily cut and align grass and grass by installing a scattering prevention cover near and parallel to the upper part of a cutting unit of the mower.