JP2008113640A - Protective plate for weeding blade - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a protective plate for weeding blade capable of solving problems in which the weeding blade during rotation bounds stones and the stones flies to a worker and the worker is subjected to danger and injury in the case and cut weeds and vines are caught in blade tip of the weeding blade and wound around top rotation shaft cover of a weeding machine and rotation of weeding blade are often stopped and when rotation of the weeding blade stopped, an engine is cut and grasses and vines are removed and then operation is carried out, but this operation is dangerous and often accompanied by injury and much time for the operation is required and rotation efficiency lowers. <P>SOLUTION: A disc-shaped protective plate 1 for weeding blade warped to the outside is attached to the weeding blade 5. Two or more hooking fixing members 2 are attached to places of the bottom part of the weeding protective plate 1 and the fixing members 2 are engaged with and fixed to holes provided on the side which is inner than blade tip of the weeding blade. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  According to the present invention, when a stone roller jumps during mowing work, it does not fly toward the operator. Also provided is a protective plate for a mowing blade, which prevents the grass and vines that have been cut from becoming entangled with the rotation axis of the tip of the mower body and stopping the rotation of the mowing blade.

  Conventionally, the stone roller flies toward the worker during mowing, and it is dangerous, and grass and vines get entangled around the tip rotation shaft cover of the mower body, stopping the cutting blade rotation and reducing work efficiency. It was.

  During mowing work, the stone roller that the rotating mowing blade bounces can fly toward the worker and be dangerous. In addition, the grass and vines that have been cut around the tip rotation shaft cover may stop the rotation of the grass cutting blade, reducing work efficiency. The problem is to solve these problems.

Means to solve the problem

  The invention of claim 1 is to prevent the grass and vines that have been cut out from coming out outside and entangled with the tip rotation shaft cover 3 by warping the wall surface of the protective plate 1 for the mowing blade outward. The stone roller bounced by the grass cutting blade 5 hits the wall surface of the protection plate 1 for the grass cutting blade so that it does not fly toward the operator 12.

  According to the second aspect of the present invention, the holes are evenly opened from the center of the grass cutting blade 5, and the hook fixing member 2 of the grass cutting blade protection plate 1 is fitted into the hole slightly inside the blade edge and rotated slightly clockwise. Since the grass cutting blade 5 rotates counterclockwise, the holes of the hook fixing member 2 and the grass cutting blade 5 bite each other, and the grass cutting blade protection plate 1 and the grass cutting blade 5 are fixed.

The invention's effect

  During mowing with a mower, stones etc. that the grass cutting blade has bounced may fly to the worker, and the grass and vines that are cut off often get entangled with the tip rotation shaft cover. Even if the mowing blade bounces a stone or the like, it hardly flies to the operator, and the grass and vines that are cut are not entangled with the tip rotation shaft cover, so that the work can be performed efficiently.

  FIG. 1 shows a structure in which the hook fixing member 2 between the blade edge and the nut protection cover 7 is away from the ground 13 and does not come into contact with the ground 13 even when the grass cutting blade 5 rotates during the mowing operation. Yes. FIG. 2 is a diagram illustrating the hook fixing member 2 in the overall view of the mowing blade protection plate 1. FIG. 3 is a diagram showing a line 11 of an angle at which the stone blade 5 jumps the stone roller 10 during the grass cutting operation and the stone roller flies. The angle at which the flying stone roller 10 hits the worker 12 is made to hit the wall surface of the protective plate 1 for the grass cutting blade and not hit the worker 12.

  The grass cutting blade protection plate according to the present invention can be industrially mass-produced, and thus has industrial applicability.

Angle diagram of ground and mowing blade Mower blade protection plate body perspective view Illustration when a stone jumps during mowing

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Protective cover main body for grass cutting blades 2 Hook fixing member 3 Tip rotation shaft cover 4 Dotted line of tip rotation shaft cover 5 Mowing blade 6 Support handle for mower main body 7 Nut protection cover 8 Handle 9 Motors 10 Stone roller 11 Stone flying angle Line 12 Worker 13 Ground

Claims (2)

  The mowing blade protection plate is characterized in that the wall surface of the mowing blade protection plate 1 has a circular shape that warps outward.   Two or more hook fixing members 2 were attached to the bottom portion of the protective plate 1 for the grass cutting blade. A protective plate for a mowing blade, characterized in that the size is a circle that can be hooked into a hole slightly inside the cutting edge of the mowing blade 5 to fit the fixing member 2 into the hole.

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