JPH0713644Y2 - scissors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to scissors.

[Prior Art] When cutting an object such as paper with conventional scissors,
Open the two scissors up and down, and operate the two scissors so that they are close to each other with the paper placed horizontally between them.
Then, by sequentially crossing the upper and lower cutting blades from the cutting edge portion near the rotation axis of both scissors to the cutting edge portion of the tip of the scissors piece, the paper is directed from its end to the center. I was able to proceed.

[Problems to be Solved by the Invention] When the upper and lower cutting blades are sequentially intersected as described above, the cutting of the paper by the cutting blades ends at the time when the leading edge portions of the upper and lower cutting blades intersect. However, in conventional scissors, even after the cutting blades cannot cut the paper because the top and bottom cutting edges intersect, the tip of both scissors pieces must rotate until they completely overlap. As a result, the scissor piece that rotates from above to the bottom tries to push down the cut piece of the paper that contacts the scissor piece, while the scissor piece that rotates from below to the top cuts the paper piece that contacts this scissor piece. Attempts to push the piece up.

As a result, as shown in FIG. 3, at the tip of the cutting portion 11 of the paper 10, tears 12 occurred due to the cut pieces located on the left and right sides of the paper cutting portion 11 being pulled upside down.

An object of the present invention is to provide scissors capable of performing a cutting operation without causing breakage at the tip of the cut portion of a cut object such as paper as described above.

[Means for Solving the Problems] In order to solve the above problems, according to the present invention, in the scissors in which both cutting edges sequentially intersect from the base end side to the tip side with the closing motion of both scissors pieces, Locking parts that prevent the closing operation of both scissors pieces are provided at the tips of both scissors pieces before the leading edge crosses, and each locking part has a contact surface that abuts each other when engaged. did.

[Action]

By forming the locking portion that prevents the closing operation of both scissor pieces as described above, even when both scissor pieces are closed to cut an object such as paper, the cutting edges of both scissor pieces are It cannot pass any more from the crossed state at its tip. Therefore, each scissor piece does not pull the piece of the paper cut in two in the opposite direction, and therefore, the tear at the tip of the cut portion of the paper does not occur.

Further, since the engaging portions that engage with each other are formed at the tips of the scissors pieces, the object to be cut is sandwiched between the engaging portions each time one cutting operation by the scissors is completed. Therefore, the object to be cut is fixed at the front position where the cutting blades intersect, and when the cutting operation is repeated, positioning is performed each time so that the tip of the cutting portion of the object to be cut is just positioned between the two cutting blades. The cutting operation can be performed smoothly and continuously.

Further, an object can be sandwiched by both locking portions formed at the tips of both scissors pieces.

[Embodiment] An embodiment embodying the present invention will be described below with reference to FIGS.

As shown in FIG. 1, the scissors of this embodiment are a pair of scissors pieces 1a and 1b.
The scissors are made up of and are rotatably supported by the shaft 2 at the center in the longitudinal direction.

Each scissor piece 1a, 1b forms a blade portion from the central part to the tip direction, and a cutting blade 3 is provided on the opposite side edges of both scissor pieces 1a, 1b.
Are formed. And, each of the scissors pieces 1a, 1b is formed with a locking portion 4 having a bulge having a rounded bud shape, and further, these locking portions 4 have both scissors as shown in FIGS. When the pieces 1a, 1b are closed, a contact surface 5 is formed so as to contact each other so as to prevent the scissor pieces 1a, 1b from closing.

Further, in the state where both scissors pieces 1a, 1b are closed, both scissors pieces 1a, 1b
Both locking parts 4 of 1b are engaged, and upper and lower scissor pieces 1a, 1b
At the tip of the cutting blade 3, both cutting blades 3 intersect each other at an intersection e shown in FIG. As a result, as can be seen from FIG. 1, a space S is formed in the portion surrounded by the both locking portions 4 and the two cutting edges 3.

A ring-shaped finger hook 6 is formed at the rear of each scissors piece 1a, 1b.

When the paper is cut using the above-mentioned scissors, the cutting blades 3 of the scissors pieces 1a and 1b are sufficiently opened up and down, and the paper to be cut is horizontally positioned between them as in the conventional scissors. As the scissors pieces 1a and 1b are closed, the paper is sequentially cut from the end portion to the central portion.

One cutting operation is completed when the engaging portions 4 of the upper and lower scissors pieces 1a and 1b come into contact with each other. At this time, when the cutting length of the paper is longer than the length of the cutting blade 3 of the scissors, the above-mentioned operation is performed. The cut paper is sandwiched between the contact surfaces 5 of the stopper 4. Therefore, the tip of the cutting portion of the paper is securely fixed at the position in front of the intersection e of the two cutting blades 3 shown in FIG. 1, the scissors pieces 1a and 1b are opened again, and the above-mentioned operation is repeated. In this case, it is not necessary to position the paper so that the tip of the cutting portion of the paper to be cut is located between the cutting blades 3 each time, and the cutting operation can be smoothly and continuously performed. Especially when the material to be cut is made of a soft material such as gauze, both scissors pieces 1
It is very convenient that an object to be cut can be sandwiched between the locking portions 4 of a and 1b and positioned.

In particular, as shown in FIG. 1, the two cutting edges 3 cannot pass any more from the state where they intersect at the intersection e,
Therefore, as described above, the scissors pieces 1a and 1b do not pull the respective pieces of the paper cut in two in the upside-down direction, and the tearing of the paper at the tip of the cut portion does not occur.

Further, since the engaging portions 4 of the scissors pieces 1a, 1b are formed as described above, an object can be sandwiched between the contact surfaces 5 and can be used as tweezers.

Further, since the locking portions 4 at the tips of the scissors pieces 1a and 1b are formed to have a rounded bud shape, there is little risk of injury to a person due to this, and safety in handling is high. Further, when the object to be cut is gauze or the like, there is no concern that the tip of the scissors piece will be caught.

The material of the scissors may be entirely made of metal, or may be made of synthetic resin, or the cutting blades 3 may be made of metal and the other portions may be made of synthetic resin. is there.

[Effects of the Invention] As described above, according to the present invention, the cutting work can be performed without causing breakage at the tip of the cutting portion of the cut object such as paper, and the cut object can be cut even when the cutting operation is repeated. There is no need to adjust the positioning of the tip of the cutting part each time, the cutting work can be performed smoothly and continuously, and it can also be used as tweezers by pinching the object between the contact surfaces of both locking parts. There is an effect that can be done.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment embodying the present invention, FIG. 2 is a perspective view of an essential part of the same, and FIG. 3 is an explanatory view showing breakage of paper by conventional scissors. 1a, 1b ... Scissors, 3 ... Cutting edge, 4 ... Locking part, 5 ... Contact surface.

Claims (1)

[Scope of utility model registration request] 1. In scissors in which both cutting blades (3) sequentially cross from the base end side to the distal end side with the closing motion of both scissors pieces (1a, 1b), the leading edge of the cutting blade (3) crosses. In the previous stage, the locking part (4) that prevents the closing operation of the scissors pieces (1a, 1b) is attached to the scissors pieces (1).
Scissors characterized in that abutment surfaces (5) are provided at the tips of a and 1b), and abutment surfaces (5) abutting each other at the time of engagement are formed in each locking portion (4).