KR101429386B1

KR101429386B1 - The Branches cut only with the top of the structure and And molding method of the blade

Info

Publication number: KR101429386B1
Application number: KR1020130013849A
Authority: KR
Inventors: 김용만
Original assignee: 김용만
Priority date: 2013-02-07
Filing date: 2013-02-07
Publication date: 2014-08-12

Abstract

The present invention improves a sawing saw that is attached to the end of a long pole 300 to easily cut branches that are located higher than the operator's key so that the blade is bent before the last part is cut off due to its own weight during cutting And moreover, to a new top structure and a molding method thereof which can be manufactured at a low cost and at a simpler speed at the time of formation and processing of a saw blade.
That is, a coupling portion 110 is formed in which one or more bolting grooves 111 are opened so as to be coupled with the pole 300, and on the upper side of the coupling portion, a curved top body A basic saw blade 130 serving as a cutting element for a wood material is formed on one side of the curved top body steel plate 120 and the basic saw blade 130 has a predetermined size A plurality of saw teeth 131 are formed in parallel at regular pitch intervals. In the structure of the saw cut only saw, the other side of the curved top body steel plate 220 at a position opposite to the basic saw blade 130 And an additional second saw blade 200, which is separate from the basic saw blade 130, is further formed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a saw cutter,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a saw that can be used for cutting branches having a relatively small thickness and a method of forming and processing the saw blade.

Usually, branches are an essential element in the growth of trees and fruit, but it is required to cut off early if it becomes unnecessary laughing or obstructing the growth of other faithful branches.

Meanwhile, in the conventional saw cutter, the saw for sawing wood is firmly tied or bonded to the end of the long pole 300, so that even a branch located at a high position not reaching by hand can be cut easily do.

A conventional saw cutter B for cutting a tree cut at the end of a long pole 300 is formed with an engaging portion 110 in which one or more bolting grooves 111 are opened to be engaged with the pole 300 ,

A curved top body steel plate 120 is formed on the upper side of the coupling portion 110 so as to be elongated while being bent in a predetermined curvature shape.

A saw blade 130, which is a cutting element for a wood material, is formed on one side of the curved top body steel plate 120,

The saw blade 130 has a plurality of sharp teeth 131 having a predetermined size and a predetermined pitch,

At this time, not only the plurality of teeth 131 are formed with different inclination angles on both sides thereof,

It is common that the width of the teeth is slightly larger than the thickness of the steel plate because the steel plates are alternately bent in the thickness direction.

However, the above-mentioned conventional saw blade (B) structure is very effective in the case of relatively thick wood having a higher support base than the resistance involved in sawing (forward and backward movement) While it is true that efficiency can be achieved,

In the case of the branch having a thin thickness and a weak support base, there is a problem in that it is difficult to perform the actual cutting only by shaking due to the resistance of the saw blade to the sawing (forward and backward movement of the saw).

That is, as described above, the conventional saw blade has not only different inclination angles formed on both sides of each of the saw blades but also has a shape in which the width of the saw teeth is slightly wider than the thickness of the steel sheet, Because of,

Cutting efficiency is very high, but when cutting saw branches with weak resistance (support base) due to high resistance to saw blade during sawing (forward and backward movement), they move only in accordance with the movement of the saw, many.

In this case, cutting can be accomplished only by sawing at a high speed which is much higher than the speed of general sawing, which makes it difficult to work for a long time.

Conventional saw blade forming and machining methods can also be applied to various kinds of high-priced equipments to form a basic saw blade, to set up different inclined blades on each tooth, to stagger each raised saw tooth, to heat treatment process and plating process, Processing and molding processes, as well as a high level of technical expertise and know-how, and a considerable cost.

Further, since the conventional saw cutter is formed only on one side of the saw body steel sheet, it can not be sawed in only one direction in which the saw blade is formed,

Therefore, if you need to cut a piece of the bottom part to prevent damage to the torn wood, cut the last part of the trunk while the branch is cut off, and turn the whole heavy and long branch cutting saw hard by 180 ° There was a problem that it was inconvenient.

Accordingly, the present invention provides a new twig saw top structure and a method of forming and processing the saw blade, which can cut the branches having a small thickness and a weak thickness with a certain degree of cutting force, while minimizing the resistance in the sawing process. And it was completed as a technical problem.

In order to accomplish the above object, according to the present invention, there is provided a coupling part 110 in which at least one bolt groove 111 is formed so as to be coupled with a pole 300, A curved top body steel plate 120 is formed to be elongated and a basic saw blade 130 as a cutting element for a wood material is formed on one side of the curved top body steel plate 120, (130) having a predetermined size and a plurality of sharp teeth (131) are formed at regular pitch intervals. The cutting blade (130) has a curvature at a position opposite to the basic saw blade (130) The additional saw blade 200 is further formed on the other side of the cut-to-shape body steel plate 220, which is separate from the basic saw blade 130.

As described above, the saw cut-only saw structure according to the present invention and the saw blade forming method of the present invention have the additional saw blades formed on the concave side of the other side as well as the one convex side of the curved body steel sheet, Since both branches can be cut using both directions, it is possible to cut off the upper and lower cutting edges of the branches even if the bar 300 (including the heavy and long saw) And the manufacturing process of the saw blade including the saw blade can be greatly simplified and simplified by using the laser cutting method which has never been tried in the saw blade field at least in the shaping and processing of the saw blade In addition, the time and cost of the operation can be greatly reduced compared to the existing one, which is expected to contribute considerably to the cost reduction. Is a useful invention.

Figs. 1 and 2 show an example of a conventional saw cutter
FIG. 3 is a view of a preferred embodiment of the present invention
Fig. 4 is a partial enlarged view of the essential part of the present invention

The structure of the cutting saw for exclusive use of the present invention and the forming method of the saw blade will be described in more detail with reference to the accompanying drawings.

That is, according to the present invention, a coupling portion 110 is formed in which one or more bolting grooves 111 are drilled so as to be coupled with the pole 300,

And a curved top body steel plate 120 is formed on the upper side of the coupling portion so as to be elongated while being curved in a predetermined curvature shape.

A basic saw blade 130, which is a cutting element for a wood material, is formed on one side of the curved top body steel plate 120,

The above-described basic saw blade 130 has a saw-toothed saw 131 of a predetermined size and a sharp-pointed plurality of saw teeth 131 formed in parallel at a constant pitch,

The saw cut exclusive saw (A) of the present invention is characterized in that on the other side of the curved top body steel plate (220) opposite to the basic saw blade (130), an additional second And the saw blade 200 is further formed as a characteristic feature.

And a coupling portion 110 is formed in which at least one bolt groove 111 is drilled so as to be coupled with the pole 300,

The basic saw blade 130 has a plurality of sharp teeth 131 having a predetermined size and a predetermined pitch spaced apart from each other

A cutting knife-only saw (A) further formed with a separate second saw blade (200) on one side of the curved top body steel plate (120) opposite to the basic saw blade (130)

The basic saw blade 130 and the second saw blade 200 are molded and processed by a laser cutting method which is a cutting technique by a laser beam which has never been attempted at least in the saw blade processing field. As a characteristic feature.

When the forming and processing of the saw blades 130 and 200 is completed by laser cutting, the curved top body steel plate 120 including the saw blades 130 and 200 is subjected to a surface treatment step for removing burrs and other foreign substances After completion of the surface treatment, a sinking or heat treatment step is carried out to give a desired high rigidity, and when the heat treatment is completed, a step of forming a surface protective layer including plating or vacuum coating is performed Can be produced.

In addition, although the saw blades 130 and 200 produced by the laser cutting method can be used in such a state, they can exhibit a predetermined cutting force required for cutting a relatively thin thick branch,

As the need arises, for the purpose of increasing the cutting force, a slanting chamfer is formed on both sides of the tooth so as to form a sharp edge, and adjacent teeth are chamfered on both sides opposite to each other so that the pointed portions between the teeth are shifted from each other, A step of raising a saw tooth to further exert an effective cutting force on the workpiece W can be further performed.

In this case, the blade cutting operation can be performed using the polishing method which was used in the previous blade manufacturing, but the laser cutting technique used in forming the saw blade of the present invention can be used.

That is, when cutting is performed by inclining the angle of irradiation of the laser beam when the blade is slanted by performing a slanting chamfering process on one side of each of the saw blades cut by the laser and opposite sides of the opposite sides of the other side, It can be a day cutting method.

A: Cutting-only top B: Top
110: engaging portion 111: bolting groove
120: Saw body steel plate 130: Standard saw blade
131: saw tooth 200: second saw blade
220: Saw body steel plate 300: Pole

Claims

A coupling portion 110 is formed in which at least one bolt groove 111 is formed so as to be coupled with the pole 300. A curved top body steel plate 110 having a predetermined curvature and being elongated, The basic saw blade 130 is formed as a cutting element for a wood material on one side of the curved top body steel plate 120. The basic saw blade 130 has a plurality of sharp, And a separate second saw blade 200 is further provided on one side of the curved top body steel plate 120 at a position opposite to the basic saw blade 130, In the method for forming and processing the further formed cutting saw (A)

The basic saw blade 130 and the second saw blade 200 are made of a laser cutting method which is a laser beam cutting technique which has never been attempted at least in the saw blade processing field;

After the forming and processing of the saw blades 130 and 200 is completed by the laser cutting method,
The curved top body steel plate saw blades 130 and 200 are subjected to a surface treatment step of removing burrs and other foreign matter,
After the surface treatment is completed, a sedimentation or heat treatment step is carried out to impart the desired high rigidity,
Performing a surface protective layer forming step of forming a metal film for surface protection using a plating method when the heat treatment is completed;

The saw blades 130 and 200 made by the laser cutting method are machined by slanting chamfer on both sides of the saw blade 130 and 200,
Further comprising the step of chamfering the opposite sides of the adjacent teeth so that the effective cutting force on the wood is exerted as the pointed portions between the teeth are staggered with each other;

Wherein the chamfering process for the blade forming step can also be performed by a laser cutting method.

delete