JPH10248383A - Reaping scissors - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve sharpness and to keep satisfactory sharpness for a long time concerning motor-driven type reaping scissors. SOLUTION: On a fixed blade constituted by continuously forming notched parts 6 confronting arcuate recessed parts, swinging blades 3 are attached so as to freely swing while positioning arcuate projecting parts on both the outsides, sharpening the top end side toward the tip and forming a blade attachment part in the form of blade on one side from the front side, and the output from a motor 9 is transmitted to the respective swinging blades.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved power-type mowing scissors.

[0002]

2. Description of the Related Art Power-type mowing scissors, which are generally used in the past, have a fixed blade having a large number of cut portions formed continuously.
Many of the constructions are arranged in such a manner that the sliding blades with a large number of cuts formed continuously are superposed, and the sliding blades are moved back and forth by the output from the power machine.
Attached to the fixed blade cut in a "V" shape, a number of oscillating blades each having a spear-shaped tip in a freely oscillating state,
Some devices are configured to swing the swing blade by the output from the power machine.

[0003]

However, a configuration in which blades having a large number of cuts are overlapped and one of the blades is slid back and forth has a large contact area between the upper blade and the lower blade. If a part of the irregularity occurs, there is a disadvantage that the close contact between the upper blade and the lower blade deteriorates, whereby the sharpness is extremely reduced, and a "V" -shaped cut portion is formed. However, there is a drawback in that the branch once entering the cut portion escapes during the operation of the swinging blade, so that efficient pruning work cannot be performed.

[0004] The present invention seeks to eliminate such drawbacks in the conventional powered mowing scissors.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a fixed blade having a configuration in which cut portions having arc-shaped concave portions facing each other are continuously formed has arc-shaped convex portions located on both outer sides and directed toward the distal end side. The oscillating blade, which has a tapered shape and has a single-edged blade from the front side, is attached in a freely oscillating state, and the output from the power machine is transmitted to each oscillating blade. In this way, the cutting ability is improved, and the good cutting ability can be maintained for a long period of time.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1 to FIG. 6, the cutting scissors main body 1 has arc-shaped concave portions 4 and 5 at the distal end of a power motor 9. Fixed blade 2 having continuously formed cut portions 6 facing each other
And the rocking blades 3 are mounted in the middle of the cuts 6, and the base of each rocking blade 3 is
Are connected by a pin 11 to the connecting shaft 10 and the respective oscillating blades 3... Are oscillated by the operation of the power motor 9.

That is, as shown in FIGS. 2 to 6, the fixed blade 2 is formed in an elongated plate member 12 by arc-shaped concave portions 4.5.
Are formed in a continuous manner, and the plate material 12 is provided with a hole 13 for mounting the swing blade 3 described below at a middle position of each of the cut portions 6. It has a configuration in which a mounting portion to the distal end side of the power motor 9 is formed at the base thereof.

As shown in FIG. 3, the oscillating blade 3 has arc-shaped convex portions 7, 7 located on both outer sides, tapering toward the distal end, and a single-bladed blade from the front side. Attachment part 8.8
A hole 14 for attaching to the fixed blade 2 is provided at a middle position, and a connecting shaft 10 is provided at a base portion.
A hole 15 is formed to connect the fixed blade 2 to the fixed blade 2. When the fixed blade 2 is attached to the fixed blade 2, the hole 13 formed in the fixed blade 2 is aligned with the hole 14 formed in the swing blade 3.
After inserting the pin 16 there, the tip of the pin 16 is caulked.

The power machine 9 has a structure in which a power source such as an electric motor is housed in a casing having a handle 17, a crank is mounted on a rotating shaft, and a base of a connecting shaft 10 is connected to a launc portion. When the fixed blade 2 is mounted, the base side of the fixed blade 2 is screwed to the distal end of the casing, and when the fixed blade 2 is connected to the swing blade 3, each hole formed in the connection shaft 10 and each swing This is performed by aligning the hole 15 formed in the blade 3 with the pin 18, inserting the pin 18 therein, and then performing caulking processing so that the blade 3 can be turned.

[0010]

The mowing scissors according to the present invention have the above-described structure, and each of the arc-shaped oscillating blades 3 oscillates about the fulcrum shaft with respect to the fixed blade 2. As a result, when the blade portion cuts in contact with the branch, the branch is pulled in, that is, cut in the form of being pulled toward the fulcrum shaft side, while preventing the branch from escaping outward,
There is an advantage that a sharp cutting ability can be exhibited with a small force. By the way, when the oscillating blade has a “V” shape as seen in the conventional configuration, when cutting the branch,
Since the branches are cut in a cut-off state, the branches tend to escape to the outside and require a large amount of cutting power,
Although sharp sharpness cannot be expected, the cutting scissors according to the present invention have the advantage that such disadvantages can be eliminated and the cutting ability can be significantly improved as compared with the conventional cutting scissors.

[Brief description of the drawings]

FIG. 1 is a front view showing the entire cutting scissors.

FIG. 2 is a partially enlarged view showing a form of a fixed blade.

FIG. 3 is an enlarged view showing the entire swing blade.

FIG. 4 is a front view showing a mounted state of the swing blade.

FIG. 5 is a front view showing an operation point of the swing blade.

FIG. 6 is a front view showing an operation point of the swing blade.

[Description of Signs] 1 Cutting blade scissors main body 2 Fixed blade 3 Oscillating blade 6 Cut part 7 Arc-shaped convex part 8 Bladed part 9 Power machine

Claims (1)

[Claims] 1. A fixed blade 2 in which a notch 6 wider than the lateral width of an oscillating blade 3 is continuously formed, and arc-shaped convex portions 7, 7 are located on both outer sides and taper toward a tip end side. State, and
It consists of a swinging blade 3 formed with a single-bladed blade-attached portion 8 from the front side.
The swing blade 3 is mounted so as to be freely swingable, the base of the fixed blade 2 is mounted to the power machine 9, and the output of forward and backward movement from the power machine 9 is transmitted to each of the rock blades 3. Pruning shears.