JPH10248382A - 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: Concerning these reaping scissors, edge parts are formed into circular arcs turned toward the same direction, plural swinging blades 3 are freely swingably attached to the projecting edge parts while forming both the edge parts in the shape of circular arcs turned toward the same direction on fixed blades constituted by continuously forming blades forming blade attachment parts in the form of blade on one side from the side of rear surface, and forming blade attachment parts in the form of blade on one side from the front side of projecting edge part, and the output from a motor 9 is transmitted to respective swinging blades 3.

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]

According to the present invention, there is provided a blade having both edges formed in the shape of a circular arc oriented in the same direction, and having a single-blade-shaped cutting portion formed on the convex edge from the back side. A plurality of oscillating blades with both edges formed in an arc shape facing in the same direction and a single-edged bladed part formed from the front side of the convex edge on a continuously formed fixed blade It is mounted as a free state, and the output from the power machine is transmitted to each oscillating blade to improve the cutting ability.
An attempt is made to maintain good cutting performance over a long period of time.

[0006]

DETAILED 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, a cutting scissors main body 1 has a rising edge with an arc-shaped edge at the tip of a power motor 9. The fixed blades 2 in which the blades 6 are continuously arranged at appropriate intervals are attached, and the oscillating blades 3 are attached between the respective rising blades 6, and the base of each oscillating blade 3 is connected to a power machine. To the connecting shaft 10 from 9 with a pin 11,
By the operation of the power motor 9, each of the swing blades 3... Is swung.

That is, as shown in FIG. 1, the fixed blade 2 is formed on the base portion 12 in an arc shape with both edges 4a and 4b directed in the same direction, and on the convex edge 4b, Upright blades 6 each having a one-sided bladed portion 5 formed from the side are continuously formed at equal intervals, and a hole 13 for mounting the swing blade 3 described below is formed in the base portion 12. Is formed at an intermediate position between each rising blade 6 and each rising blade 6, and further, a base portion of the base portion 12 has a configuration in which a mounting portion to the distal end side of the motor 9 is formed. is there.

[0008] As shown in FIG.
a and 7b are formed in an arc shape facing in the same direction, and a single edged bladed portion 8 is formed on the convex edge portion 7b from the front side. The base 14 has a hole 14 for attachment to the base 12, and the base has a hole 15 for connection to the connection shaft 10. The hole 13 formed in the rocking blade 3 is made to coincide with the hole 13 formed in the rocking blade 3, and the pin 16 is inserted into the hole 13. Then, the tip of the pin 16 is crimped.

The power machine 9 has a structure in which a power source such as an electric motor is accommodated 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 attached, the base side of the base portion 12 of the fixed blade 2 is screwed to the tip of the casing, and when the fixed blade 2 is connected to the oscillating blade 3,. 10 and the holes 1 formed in each swing blade 3
5, the pin 18 is inserted there, and then caulking is performed so as to be rotatable.

[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 sign]

 DESCRIPTION OF SYMBOLS 1 Cutting main body 2 Fixed blade 3 Oscillating blade 4b Edge 5 Bladed portion 5 6 Rising blade 7b Edge 8 Bladed portion 9 Power machine

Claims (1)

[Claims] 1. A fixed blade 2 in which an edge 4b is formed in a convex arc shape and a rising blade 6 having a configuration in which a single-edged bladed portion 5 is formed on the edge 4b from the back side is continuously arranged. The oscillating blade 3 in which the edge 7b is formed in a convex arc shape and a single-edged cutting portion 8 is formed from the front side of the convex edge 7b.
The swinging blade 3 is mounted between the rising blades 6 of the fixed blade 2 in a swingable state, the base of the fixed blade 2 is mounted on the tip side of the power machine 9, and the front-rear movement motion from the power machine 9 is performed. The cutting scissors characterized in that the output is transmitted to each of the oscillating blades 3...