JPH09206481A - Scissors - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide scissors advantageous for cutting thin paper and soft paper. SOLUTION: These scissors 1 are composed of a pair of scissor pieces 3 respectively provided with a blade part 2 and both scissor pieces 3 are pivotally attached turnably by a spindle 4. A tapered projection 7 is projectingly provided on the lower part near the spindle 4 of one blade part 2 and a notched part 8 notched toward an inner side is provided near the spindle 4 of the other blade part 2 in a pair. Thus, the sliding of both blade parts in the scissors is improved and the effective cutting length of the tooth parts of the blade parts to be engaged is extended. Especially, even in the case of cutting the thin paper and the soft paper, since cutting is not stopped at the tip part of the blade part and is excellently performed even on the inner side, the scissors become advantageous for cutting the thin paper and the soft paper.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to scissors, and more particularly to scissors advantageous for cutting thin paper or soft paper.

[0002]

2. Description of the Related Art In particular, when cutting thin paper or soft paper with scissors, it may sometimes be possible to satisfactorily cut only at the tip of the blade. In other words, the effective cutting length of the part of the meshed blades, called the tooth, is short, especially when cutting thin or soft paper.

Incidentally, as a technique for improving scissors, Shokai Sho 60
In Japanese Patent No. 134483, protrusions are provided on each of the scissor pieces, the protrusions are inserted into the retaining holes, and the blade body is prevented from coming off from the body of the scissor piece by engagement of the protrusions with the retaining holes. The technology is described and the actual Kaihei 3-39
In Japanese Patent Publication No. 68, there is described a technique in which support scissors are provided on respective base end edges of both scissors pieces (blade parts), and these support projections prevent the blade part from coming off from the handle part.
Japanese Utility Model Laid-Open No. 60-73469 discloses scissors provided with springs for supporting both scissors pieces (blades) in an open state and provided with locking projections for locking the springs. There is.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide scissors which are advantageous for cutting thin paper or soft paper, in view of the above prior art. The above and other objects and novel features of the present invention will become apparent from the description of the present specification.

[0005]

SUMMARY OF THE INVENTION The present invention is a scissor comprising a pair of scissor pieces each having a blade portion, and both scissor pieces are rotatably pivoted by a support shaft. A scissors characterized in that a tapered projection is provided at a lower portion in the vicinity of the support shaft, and a notched portion that is cut inward is provided in the vicinity of the support shaft of the other pair of blades. It is related.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Next, regarding the scissors according to the present invention,
This will be described with reference to the drawings. FIG. 1 is a plan view of scissors showing an embodiment of the present invention. As shown in FIG. 1, the scissors 1 is composed of a pair of scissor pieces 3 and 3 each having a blade portion 2, and both scissor pieces 3 and 3 are rotatably attached by a spindle 4. A handle portion 5 is continuously provided on each of the scissors pieces 3, 3, and a finger hooking portion 6 is provided at an end portion of the handle portion 5. In the scissors 1,
A tapered protrusion 7 as shown in the drawing is provided on the lower part of the one blade portion 2 in the vicinity of the support shaft 4. The tapered protrusion 7
Is provided obliquely from the axial center side of the one blade portion 2 toward the outside. The tapered protrusion 7 is formed as an inclined protrusion whose thickness gradually increases from the lower side to the upper side. The support shaft 4 of the other blade portion 2 which is paired
In the vicinity thereof, a notch portion 8 which is notched in a triangular piece toward the inside as shown in the figure is provided.

2A and 2B are a plan view and a sectional view of a main part for explaining the operation of the scissors according to the present invention. As shown in FIG. 2 (E), when the pair of scissors pieces 3 and 3 are closed and the two blade portions are substantially rubbed together, as shown in FIG. In addition, one side of the cutout portion 8 of the other scissor piece 3 is located below the tapered protrusion 7 provided on the one scissor piece 3. Note that the cross-sectional view of FIG.
It is sectional drawing which follows the AA line of (E), and is the same also in the following description. A pair of scissors pieces 3 and 3 shown in FIG.
2 is a cross-sectional view of an essential part in the state in which the state of FIG.
As shown in (D), one side of the cutout portion 8 of the other scissor piece 3 is
It is located at an intermediate position, for example, an intermediate position, of the tapered protrusion 7 provided on one scissor piece 3. Further, as shown in FIG. 2 (A), when the pair of scissors pieces 3 and 3 are further opened, the other scissors piece is shown as shown in FIG. One side of the notch 8 of 3 is located above the tapered projection 7 provided on one scissor piece 3.

As described above, one side of the cutout portion 8 of the other scissor piece 3 is moved up and down by the slanted surface of the tapered projection 7 protruding from the one scissor piece 3 so that the scissor piece 3 of these two scissor pieces 3 can be moved up and down. The two blades are rubbed together well, and the effective cutting length of the tooth portion of the blades to be meshed is extended.Especially when cutting thin paper or soft paper, it does not stop at the tip of the blade. , The inner side can be cut well. Also,
Since the other scissor piece 3 protruding from one scissor piece 3 and abutting the tapered projection 7 is provided with the notch portion 8, the scissors 1 can be opened and closed favorably during the above operation.

In the present invention, the tapered protrusion may be integrally formed with the scissors piece.

[0010]

As described above, according to the present invention, the two blade portions of the scissors are satisfactorily rubbed together, the effective cutting length of the tooth portions of the blade portions engaged with each other is extended, and particularly thin paper or soft paper is cut. Also in the case of cutting, it is possible to cut well on the inner side of the blade portion without stopping at the tip portion of the blade portion, which is advantageous for cutting thin paper or soft paper.

[Brief description of drawings]

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

2A and 2B are a plan view and a sectional view of an essential part for explaining the operation of the scissors according to the present invention, and FIGS. 2A, 2C, and 2E are plan views of the relevant part. , The figure (B),
(D) And (F) is a principal part sectional view corresponding to the said principal part plan view, respectively.

[Explanation of symbols]

 1 ... Scissors (2) Scissors (2) Blades (3) Scissors pieces (4) Spindles (5) Handles (6) Finger hooks (7) Tapered protrusions (8) Notches

Claims (3)

[Claims] 1. A scissors comprising a pair of scissor pieces each having a blade portion, wherein both scissor pieces are pivotally mounted by a spindle, and a taper is formed on a lower portion of one blade portion near the spindle. Scissors characterized in that a notch portion that is notched toward the inside is provided in the vicinity of the support shaft of the other pair of blade portions while projecting a protrusion. 2. The scissors according to claim 1, wherein the tapered protrusion is an inclined protrusion whose thickness gradually increases from a lower direction to an upper direction. 3. The scissors according to claim 1, wherein the tapered protrusion is integrally formed with the scissors piece.