JP2002305967A - Assembled blade for tree-trimming machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an assembled blade for a tree-trimming machine that can always retain high sharpness by allowing a rust preventive oil to spread perfectly all over the sliding faces of the blades 3, 4. SOLUTION: A V-shaped or U-shaped groove 7 is formed on the sliding faces of the blades 3, 4 and further grooves are cut on the sliding faces between these blades are other extending until the blade tips individually.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blade used in a mowing machine for trimming hedges, plants and the like by reciprocating two blades disposed at the tip of a mowing machine main body.

[0002]

2. Description of the Related Art A conventional blade for a mowing machine cuts a hedge, a plant, or the like, so that rust preventive oil applied for rust prevention disappears after work.

[0003]

For this reason, after use, rust-preventive oil is applied to the blade to protect the blade from rust generated. It was difficult to spread the oil all over the blade. SUMMARY OF THE INVENTION An object of the present invention is to provide a pruning machine which always spreads rust preventive oil to every corner of the blade, protects the blade from rust, and has a sharp cutting performance.

[0004]

The above object is achieved by providing a groove on the sliding surface of the blade.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a blade for a mowing machine according to the present invention is shown in FIGS.

FIG. 1 is an external perspective view showing an example of the pruning machine 1, FIG. 2 is a developed view of the blade assembly 2 of FIG. 1, FIG. 3 is a sectional view of the blade (upper blade) 3 taken along the line AA, and FIG. It is BB sectional drawing of the blade 4 (lower blade).

As is well known, the pruning machine 1 converts the rotation of a motor (not shown) in the outer frame 5 into reciprocating motion, and reciprocates the two blades 3 and 4 constituting the blade assembly 2 so that the hedge and the hedge are removed. It is used to cut down trees and the like. Reference numeral 6 denotes a switch.

The blade assembly 2 includes a blade 3 and a blade 4 which are screwed between a blade holder 9 and a holder plate 8.
It is constituted by attaching with a nut 11 and a nut 11.

The blade 3 has a groove 7 as shown in FIG. 2 formed on the entire surface sliding with the holder plate 8, and the blade 4 has the same concave groove 7 on the entire surface sliding with the blade holder 9. A groove 7 is formed. Further, on the surface on which the blades 3 and 4 slide, a concave groove 7 like the blade 4 in FIG.

[0010]

According to the present invention, oil can be spread all over the blade, so that the blade can be hardly rusted even if left for a long time.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a pruning machine.

FIG. 2 is a development view showing one embodiment of a blade assembly according to the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a sectional view taken along line BB of FIG. 2;

FIG. 5 is a development view of a conventional blade assembly.

[Explanation of symbols]

1 is a pruning machine, 2 is a blade assembly, 3 and 4 are blades, 5 is an outer frame, 6 is a switch, 7 is a concave groove, 8 is a holder plate, 9 is a blade holder, 10 is a screw, 11 is a nut, 12 Is color.

Claims (2)

[Claims] 1. A cutting machine for cutting a hedge or a tree plant by two blades driven by reducing the rotation of a motor and converting the rotation into reciprocating motion, wherein a groove is formed on the sliding surface of the blade. Blades for mowing machines. 2. A blade for a mowing machine according to claim 1, wherein a groove is formed up to a cutting edge on a surface side on which the two blades slide.