JP3021411U - Structure of scissors such as branch cutting scissors - Google Patents

Abstract

(57) [Abstract] [Purpose] By forming a rising part on the tip side of one of the blades, it prevents the cut objects such as branches from moving in the forward direction at the time of cutting, and cuts the branches efficiently. It is intended to prevent the other blade from coming into contact with the upper part of the rising part by forming an oblique cut part in the rising part while being obtained. [Structure] A rising portion is formed on the tip side of one of the blades to prevent the cut object from moving forward, and
A structure of a scissors part such as a cutting scissors characterized in that an oblique cut part or a stepped part is formed on the other blade side of the rising part.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to improvement of a scissors part in a cutting scissors or the like.

[0002]

[Prior art]

 When pruning branches, etc., there are cases where branch cutting scissors are used that have scissors attached to the tip of the handle and the scissors can be opened / closed by an operating lever attached to the hand side. In many cases, such branch cutting scissors consist of a scissor part with a rotary blade and a fixed blade, and the base of the fixed blade is fixed to the end of the handle, and The blade is connected to a connecting shaft that extends from the operating lever.

[0003]

[Problems to be solved by the device]

 In the scissors of such a branch cutting scissors, one blade is attached to the other blade so as to be rotatable around a fulcrum shaft. Then, by closing both blades, the object to be cut such as a branch is pushed out to the front side of the scissors, and it is possible to cut at the back side of the scissors, which exerts the strongest cutting ability with a light force. However, if unnecessary force is required and the width of transition is large, there is a drawback that the cut object cannot be cut off as expected because the cut object comes off the scissors. Such a defect can be eliminated by forming a rising portion on the tip side of one of the blades that make up the scissors, but when such a rising portion is formed on the tip side of the blade. When cutting a branch, etc., the other blade may come into contact with the corner of the rising edge and cause the blade to spill, or the other blade may get caught on the upper surface of the rising edge, making the branch itself uncut. It may be possible.

That is, FIG. 2 and FIG. 3 are composed of a blade 11a and a blade 11b, and the blade 11a in the case of cutting the branch 10 with scissors 11 having a rising portion 11c at the tip end portion of the blade 11b. It is a diagram showing the movement of the blade 11a and the rising portion 11c in the state before the branch 10 is completely cut when the branch 10 is cut by the scissors 11 having the rising portion 11c formed on the tip side. The tip of the will join at the point A (Fig. 3). By the way, when a thick branch is cut with the single-edged blade 11a, the blade 11a is inevitably pushed in the direction of the arrow shown in FIG. 4 due to the form of the blade (the tip of the blade 11a is When pressed to the side of the blade 11b), at the joining stage of the blade 11a and the rising portion 11c (position A in FIG. 3), the cutting edge 12 of the blade 11a abuts on a corner of the rising portion 11c or the upper surface. When the work is performed under such a condition, the blade 11a may be spilled or the blade 11a may hit the upper surface of the rising portion 11c, making it impossible to cut. It will be. In other words, a single-edged blade has a structure in which one side is plate-shaped and the other side is tapered to form a blade. When cutting, the tapered surface part first enters into the cutting part formed by the cutting edge, so the entire blade is inevitably forced to the side where the tapered surface is not formed, If cutting is attempted in this state, there is a possibility that the blade 11a will come into contact with the corner of the rising portion 11c, or it will be in a riding state.

[0005]

[Means for Solving the Problems]

 This invention forms a rising portion on the tip side of one of the blades forming the scissors portion so as to prevent an object to be cut such as a branch from moving to the front side, and at the other blade side of the rising portion. By forming an oblique cut portion or stepped portion at a position, it is intended to prevent the cutting edge from coming into contact with the corner portion of the rising portion or the upper surface portion during cutting work.

[0006]

【Example】

 One embodiment of the present invention will be described with reference to the drawings by taking long-handled scissors as an example. The long-handled scissors 1 include a scissor portion 2 at one end of a long handle 14 as shown in FIGS. 1 and 5 to 10. Further, an operating lever 13 for operating the scissors portion 2 is attached to the other end portion, and the scissors portion 2 is constituted by a blade 2a and a blade 2b, and further, a cutting with the blade 2a is made on the tip side of the blade 2b. Occasionally, a rising portion 3 is formed to prevent the branch from moving to the front side, and an oblique cut portion 4a or a step-down portion 4b is formed at a portion of the rising portion 3 where the blade 2a is arranged. It is a formed structure.

As shown in FIGS. 5 to 10, the blade 2 a has a single-edged blade 8 bent in an arc shape in the lower portion and a hole for mounting the shaft 5 formed therein. The blade 2b is rotatably attached to the blade 2b by a shaft 5, and the front lower position is connected by a connecting pin 7 to a connecting shaft extending from the lever side. Of.

As shown in FIG. 5 to FIG. 10, the blade 2b has a structure in which a rising portion 3 is formed on the tip side of the blade 2b so that a curved roller portion 6 is formed in the upper portion. At the time of work, the branch is put in the part so that the branch can be prevented from being pushed out to the front side at the time of cutting, and the A-A line of the scissors portion 2 is also provided. As shown in FIG. 7, which is a cut end view, the configuration is such that an oblique cut portion 4a is formed from the apex of the rising portion 3 toward the arrangement side of the blade 2a.

The above is an embodiment in which the cut portion 4a is formed by notching the rising portion 3 of the blade 2b obliquely from the apex toward the arrangement side of the cutting blade 2a, but the scissors shown in FIG. As shown in the cut end view of the portion 2, it is possible to form the stepped-down portion 4b by finishing the wall thickness of the rising portion 3 thinly, and as shown in FIG. It is also possible to form the rising portion 3 by disposing another member on the side surface portion, and thereby to form the stepped-down portion 4b on the blade 2a side.

Further, the above shows an embodiment in which the scissors portion according to the present invention is adopted as long-handled scissors for cutting off branches. The structure of the scissors portion 2 has gripping scissors for cutting off branches. It can also be used for trimming scissors.

[0011]

[Effect of device]

 The scissors portion of the long-handled scissors according to the present invention has the above-described structure, and the rising portion 3 is formed on the tip side of the blade 2b. The object to be cut is pushed to the front side, and it is not possible to cut at the back side where the scissors 2a can most efficiently cut, and the branch moves to the front side at the time of cutting with the blade 2a. It is possible to prevent the situation where the blade comes off, and the cutting portion 4a or the stepped portion 4b is formed on the blade 2a side of the rising portion 3 so that the blade 2a is cut when the branch is cut. Even when the blade 8 is pushed to the side of the blade 2b (Fig. 8), the blade 2a comes into contact with the corner of the rising portion 3 formed on the blade 2b or rides on the upper surface of the blade 8a, so that the blade 8 Damage to the tree, or impossible to completely cut off the branches It is as it can to prevent the Rutoitta situation. That is, when the cutting edge contacts the corner of the rising edge when cutting a branch, the blade spills, and when the blade rides on the rising edge, the branches to be cut are cut. Although it is impossible to cut the object by itself, the scissors according to the present invention has the cut portion 4a or the stepped portion 4b formed on the rising portion 3 as a result. Even if the blade 2a is close to the blade 2b side, there is an advantage that the blade 2a can be prevented from coming into contact with the corner of the rising portion 3 or from being in contact with the upper surface of the rising portion 3 during cutting. Of.

[Brief description of drawings]

FIG. 1 is a front view showing long-handle scissors.

FIG. 2 is a front view showing a conventional example of scissors such as long-handled scissors.

FIG. 3 is a front view showing a conventional example of scissors such as long-handled scissors.

FIG. 4 is an explanatory view showing a cutting state at the time of cutting with scissors.

FIG. 5 is a front view showing a structure of scissors according to the present invention.

FIG. 6 is a front view showing an operating state of the scissors portion according to the present invention.

FIG. 7 is a sectional view taken along line AA in FIG.

FIG. 8 is an explanatory view showing a cutting state at the scissors portion according to the present invention.

FIG. 9 is an explanatory diagram showing another embodiment.

FIG. 10 is an explanatory diagram showing another embodiment.

[Explanation of symbols]

 1 Long-handle scissors 2 Scissors 2a Blade 2b Blade 3 Rising part 4a Cut part 4b Step drop part

Claims (1)

[Scope of utility model registration request] 1. A rising portion 3 which comprises a blade 2a and a blade 2b, and which is provided at the tip side of the blade 2b for preventing an object to be cut such as a branch from being pushed forward when cutting with the blade 2a. A structure of scissors such as scissors for cutting, which is formed, and at the side of the blade 2a of the rising portion 3 is formed with an oblique cut portion 4a or a stepped-down portion 4b.