JPH0724153A - Cutting tool - Google Patents

Abstract

PURPOSE:To enlarge the versatility, to simplify the structure and to reduce the cost by constituting the cutting tool so that an object to be cut can be cut easily and surely. CONSTITUTION:In the cutting tool 1 in which the respective base end sides of paired lever-like main bodies 2, 3 connected to each other in freely turnable through a supporting pin 4 are made grips 9, 10, and on the tip side of the main body 3, and on the tip side of the main body 2, a cutting blade 5, and a receiving base 6 are provided opposite each other, respectively, the main bodies 2, 3 are made asymmetrical, and in the main body 2, the middle part is bent in two stages, and a grip 9 side bend part is made a pin connecting part 11 and a supporting point pin hole 12 is provided, and in the main body 3, a pin connecting part 14 is provided projectingly outside the opposite side of the cutting blade 5 and a supporting point pin hole 15 is provided, and knurling is performed to the receiving surface of the receiving base 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting tool for cutting an object to be cut such as a wire rod by a scissors operation.

[0002]

2. Description of the Related Art Conventionally, as a cutting tool of this type, a cutting blade is pivotally attached to each tip of a pair of handles pivotally attached by a fulcrum pin, and the cutting blade is pivotally attached to its intermediate portion at both ends. It is widely used that the connecting plates are connected to each other, and the wire is cut by the blade portion formed facing the inner surface of the tip of the cutting blade by the scissor operation of the handle.

This type of wire rod cutting tool is roughly classified into a one-handed type for cutting a thin wire rod and a two-handed type for cutting a wire rod having a larger diameter.

[0004]

By the way, in the above-mentioned prior art, only the wire rod can be cut, and the operator must prepare a thin-diameter and a large-diameter to use properly, and the working effect is extremely poor. However, there is a problem that the structure is complicated and expensive. The present invention has been made in view of the above-mentioned actual circumstances, and an object thereof is to easily cut an object to be cut other than a wire rod, and moreover, it can be used for both a small diameter and a large diameter of the wire rod. Another object is to provide a general-purpose cutting tool that has a simple structure and can be obtained at low cost.

[0005]

In order to achieve the above object, the present invention takes the following technical means. That is, according to the present invention, the base ends of the pair of lever-shaped main bodies rotatably connected to each other through the fulcrum pins are grips, and the cutting blade is provided on one tip side and the cut end is provided on the other tip side. The object cradle is a cutting tool that is provided to face each other,
The main body is asymmetrical, one of the main bodies is bent in two steps and a fulcrum pin hole is provided with the grip side bent portion as a pin connecting portion, and the other body has a pin connecting portion opposite to the cutting blade or the pedestal. It is characterized in that a fulcrum pin hole is provided so as to project outward from the side.

Further, the present invention is characterized in that the object receiving surface of the pedestal is knurled to prevent the object cutting slipping.

[0007]

According to the present invention, in the expanded state of the main body, the object to be cut is placed on the pedestal, and the grip of the main body is operated by the scissors to reduce the facing distance between the pedestal and the cutting blade. While pressing the cut object against the receiving surface of the pedestal, cut with the cutting blade. At this time, since the position of the fulcrum pin is relatively distant from the pedestal receiving surface, the cutting edge of the cutting blade sequentially moves rearward with respect to the pedestal receiving surface, and therefore, knurling the receiving surface. Thus, the object to be cut does not slip in the tip direction, the cutting force effectively acts, and the object is easily and surely cut.

Various items such as rods and plates other than wire rods can be cut.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, a cutting tool 1 includes a pair of asymmetric lever-shaped main bodies 2 and 3 and a fulcrum pin 4 connecting the main bodies 2 and 3.
The cutting blade 5, the pedestal 6, the opening spring 7 and the opening stop spring 8 are mainly configured, and the cutting blade 5 and the pedestal 6 are replaceable.

The main bodies 2 and 3 are formed by stacking and folding steel plates and cutting them so that the base end side folded-back portion remains, and forming respective connecting portions and tip portions of left and right side plates. The sides are grips 9 and 10. In the main body 2, the middle portion is bent in two steps on the side opposite to the folded portion, the grip 9 side bent portion is used as the connecting portion 11, and the fulcrum pin hole 12 is provided, and the tip portion 2A is provided with the connecting portion 11 described above. A pedestal support 13 having a step on the side is formed.

In the intermediate portion of the main body 3, a connecting portion 14 is provided so as to correspond to the connecting portion 11 of the main body 2 in a direction opposite to the folded portion, and a fulcrum pin hole 15 is provided. Also, the side plate spacing of the tip portion is approximately the same as the thickness of the cutting blade 5, so that it can be loosely fitted between the intermediate coupling portion 11 and the tip portion of the main body 2. Then, the connecting portion 14 of the main body 3 is fitted between the side plates of the connecting portion 11 so that both pin holes 12, 1 are formed.
5, the fulcrum pin 4 is fitted into the holes 12 and 15 and fixed by caulking.

An end 16 of the tip portion 3A of the main body 3 facing the pedestal 6 is formed in a mountain shape in side view, and a protrusion 17 is formed at the tip, so that the cutting blade 5 is inserted between the side plates of the tip portion 3A. Then, the bolt 18 and the nut 19 are replaceably attached. The pedestal 6 is made of an L-shaped section, and one side of the flange is narrowed so that the outer surface (upper surface) of the pedestal 6 becomes the receiving surface 6A. The ends are opposed to each other, and the cutting blades 5 are integrally fixed by a rivet 20 via a spacing member 21 with an interval between which the cutting blade 5 can be fitted. The opposite side surface (back surface) of the cradle receiving surface 6A is a cradle. It is in contact with the upper surface of the support portion 13. Then, the receiving surface 6A is subjected to knurling, which is formed of uneven strips in a direction orthogonal to the cutting blade 5, to prevent the cut object from slipping.

The opening spring 7 is formed by extending both ends of a spiral spring in a V shape to form annular portions 7A and 7B. One annular portion 7A is a grip 9 and the other annular portion 7 is formed.
B are fixed to the grip 10 by rivets 22, respectively. In addition, the opening stop spring 8 is formed by forming one wire into a hook shape and lengthening the leg portion so that both ends of the leg portion are bent outward from each other, and the bent end 8A is a base end of the grip 10 of the main body 3. It is fitted and locked in the hole provided in the section.

The hook portion 8H of the opening stop spring 8 can be engaged with and disengaged from a locking pin 23 provided in the base end portion of the grip 9 of the main body 2. According to the above-described embodiment, when cutting a wire or the like, the hook 8H of the opening stop spring 8 is removed from the locking pin 23, and the grips 9 and 10 are opened to expand the pedestal 6 and the cutting blade 5. The object 6 to be cut
On the receiving surface 6A, and the grips 9 and 10 of the main bodies 2 and 3 are scissored to reduce the facing distance between the receiving table 6 and the cutting blade 5,
The wire material is pressed against the receiving surface 6A and cut by the cutting blade 5.

At this time, since the position of the fulcrum pin 4 is considerably distant from the receiving surface 6A, the cutting edge of the cutting blade 5 has the receiving surface 6A.
To the rear (grip 9 side) substantially sequentially,
Therefore, the cutting blade 5 pushes the wire backward,
In combination with the knurling of the receiving surface 6A, the wire does not slip in the tip direction, the cutting force of the cutting blade 5 effectively acts on the wire, and the wire can be cut easily and reliably.

Further, according to the above-mentioned embodiment, not only wire rods but also rods, plates, etc. can be easily cut and used in the same manner as general scissors. There is no need to use it with a large diameter, and it has mediocrity. The present invention is not limited to the above embodiment, but can be modified in design as appropriate.

[0017]

As described above, according to the present invention, a pair of lever-shaped main bodies rotatably connected to each other via a fulcrum pin are provided with grips at the base end sides thereof, and the blade cutting blade is provided at one tip end side. Is a cutting tool in which the object receiving base is provided on the other end side in a state of being opposed to each other, and the main body is asymmetrical, and one of the main bodies is bent in two steps so that the grip side bending portion is formed. Is provided with a fulcrum pin hole, and the other main body is provided with a fulcrum pin hole by projecting the pin connecting portion outward on the opposite side of the cutting blade or the pedestal. Therefore, the structure is simple and it is possible to easily and surely cut objects other than wire rods.For example, even wire rods do not have to be used with small diameters and large diameters, are versatile, and can be obtained at low cost. You can

Further, the present invention is characterized in that the object receiving surface of the pedestal is subjected to knurling for preventing the object to slip, so that the object to be cut can be slippery.
It can be cut reliably and easily without slipping.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a bottom view of FIG.

FIG. 4 is an enlarged view of the left side surface of FIG.

FIG. 5 is an enlarged view of the right side surface of FIG.

6 is a view showing a state in which the opening spring and the opening stop spring of FIG. 5 are removed.

FIG. 7 is a front view showing a state where the main body grip interval of the embodiment is widened.

[Explanation of symbols]

 1 cutting tool 2 main body 3 main body 4 fulcrum pin 5 cutting blade 6 pedestal 6A receiving surface 9 grip 10 grip 11 pin connecting part 12 fulcrum pin hole 14 pin connecting part 15 fulcrum pin hole

Claims (2)

[Claims] 1. A pair of lever-shaped main bodies rotatably connected to each other via a fulcrum pin are gripped at their respective base end sides, and a cutting blade is provided on one tip side and an object to be cut on the other tip side. The pedestal is a cutting tool provided in a state of being opposed to each other, wherein the main body is asymmetrical, one of the main bodies is bent in two steps, and a fulcrum pin hole is provided with the grip side bent portion as a pin connecting portion. The cutting tool is characterized in that the other body is provided with a fulcrum pin hole by projecting a pin connecting portion outwardly on the opposite side of the cutting blade or the pedestal. 2. The cutting tool according to claim 1, wherein the object receiving surface of the pedestal is knurled to prevent the object cutting slipping.