WO2004041488A1

WO2004041488A1 - Scissors

Info

Publication number: WO2004041488A1
Application number: PCT/JP2003/014151
Authority: WO
Inventors: Akiyo Yajima
Original assignee: Yajima, Takeo
Priority date: 2002-11-08
Filing date: 2003-11-06
Publication date: 2004-05-21
Also published as: JP2004160108A

Abstract

A first blade body (2) with a first blade portion (1) and a second blade body (4) with a second blade portion for cutting an object to be cut in cooperation with the first blade portion (1) are openably/closably connected by a connection portion (5). The first blade body (2) has a protection plate (10) provided so as to face the blade portion (1). The protection plate (10) has a limiting face (9), and a gap in which the object to be cut is inserted is formed between the limiting face (9) and the blade portion (1). A blade portion (3) of the second blade body (4) is provided so as to be openable/closable within a predetermined angle range, and the protection plate (10) extends in the opening/closing direction of the second blade body (4) so that the blade portion (3) of the blade body (4) is always on the protection plate (10).

Description

Scissors technical field

The present invention relates to scissors for cutting an object to be cut. Background art

Scissors are tools for cutting bright objects such as paper and pieces of cloth, and are widely used by children and adults on a daily basis. Therefore, we fully understand the danger of scissors.

It is necessary to make products that take into account the use of infants who are not used or elderly people with physical disabilities. Conventionally, as scissors considering safety, a blade with a rounded blade tip, a blade with a blunt cutting edge that is less likely to be injured by accidental contact, and a blade case stored in a protective case when not in use There are things that I try to do.

By the way, when using scissors, the cutting work is performed with a foreign object such as a fingertip sandwiched between the widely opened blades, and there is a danger of being injured or cutting off unnecessary members. This cannot be prevented by conventional scissors with a rounded tip or scissors with a blunt cutting edge.

An object of the present invention is to provide scissors that prevent foreign substances other than the object to be cut from being caught between blade bodies. Disclosure of the invention

The scissors of the present invention are scissors for cutting an object to be cut by manual operation, wherein the first blade body having a first blade portion and the first blade portion cut the object to be cut. A second blade body that is openably and closably connected to the first blade body, and is provided on at least one of the first and second two blade bodies; And a protection plate having a limiting surface that forms a gap into which the object is inserted between the blade and the blade.

The scissors of the present invention are scissors for cutting an object to be cut by manual operation, and cut the object by a first blade body having a first blade portion and the first blade portion. A second blade body having a second blade portion, the second blade body being openably and closably connected to the first blade body; and a second blade body provided at a connection portion between the two blade bodies, and at least one surface of both of the blade bodies. And a protective plate provided with a cover for covering the object and having a slit formed therein into which an object to be cut is inserted.

The scissors according to the present invention may be configured such that when the first and second blades are opened to have a width equal to or larger than a width of a gap formed by the blade and the limiting surface, at least one of the blades is formed of the other blade. It is characterized in that it overlaps the protection plate.

The scissors of the present invention are provided on the first blade body, wherein the protective plate has a limiting surface facing a blade portion of the blade body and forming a predetermined gap between the blade portion and the protection plate. A power par portion for covering the second blade body is provided.

The scissors of the present invention are characterized in that the first blade body is movably provided with a protection plate for forming the gap between the first blade body and the blade portion of the blade body, and the width dimension of the gap is changed. As described above, according to the present invention, by setting the width dimension of the gap into which the object to be cut is inserted to the minimum dimension in which the object to be cut can be inserted, foreign matters such as fingertips can be prevented.

The risk of being caught between the two blades can be reduced. For example, when cutting cardboard with a thickness of about 2 mm as stationery scissors, the width of the gap is set to about 2 mm. In this gap, even a child's finger will not be able to enter, so it will not be cut or accidentally hurt.

According to the present invention, the width of the gap into which the object is inserted can be changed in accordance with the thickness of the object to be cut. Maximum safety can be ensured.

According to the present invention, by providing the protective plate, it is possible to make the tip shape round while securing a sufficient area at the tip of the scissors, and it is possible to reduce the risk of accidentally piercing the body.

As a secondary effect brought about by the above effects, according to the scissors of the present invention, the scissors are safe even if they are reachable by infants, and they can be stored in any place. Also, while several teachers are watching, even if many kindergarten children use scissors, they can concentrate on the work without worrying about injuries, and the teachers' efforts are light BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view showing a state where scissors according to an embodiment of the present invention are open, and a two-dot chain line shows a state where scissors are closed.

2 (A) and 2 (C) are perspective views showing the blade portion of the scissors according to one embodiment of the present invention, and FIG. 2 (B) is a view taken along the line II in FIG. FIG. 2 (D) is a cross-sectional view taken along the line II-II in FIG. 2 (C).

FIG. 3 is a perspective view showing a blade portion of the scissors according to one embodiment of the present invention. FIG. 4A is a perspective view showing a blade portion of the scissors according to one embodiment of the present invention, and FIG. 4B is a cross-sectional view taken along the line III-III in FIG. FIG. 4C is a cross-sectional view showing an embodiment for fixing the protection plate to the first blade body.

FIG. 5 is a perspective view showing scissors according to an embodiment of the present invention.

FIG. 6 is a perspective view showing scissors according to one embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

As shown in FIG. 1, a first blade body 2 having a first blade portion 1 and a second blade portion 3 having a second blade portion 3 for cutting an object to be cut by the first blade portion 1 The blade 4 is connected to the blade 4 by a connecting portion 5 so as to be openable and closable. Handles 6 and 7 are provided on the first and second blades 2 and 4, respectively, so that an object to be cut can be cut manually. The handle 7 is provided with a stopper 8 formed by extending one end of the handle 7, and when the first blade body 2 and the second blade body 4 are opened at a predetermined angle around the connecting portion 5. In addition, the first blade body 2 hits the stopper 8 so as not to open any more. As a means for preventing the blades 2 and 4 from opening beyond a predetermined angle, a protrusion is provided on one of the blades, and when the blade is opened at a predetermined angle, the protrusion is generated on the other blade. You may make it hit.

The first blade body 2 is provided with a protective plate 10 having a limiting surface 9 formed facing the blade portion 1 and forming a gap into which the object to be cut is inserted between the first blade body 2 and the blade portion 1. I have. The protection plate 10 is provided with a stopper 8 so that it can be opened and closed freely within a predetermined angle range. The second blade body 4 is provided so as to extend in the opening and closing direction of the second blade body 4 so that the blade portion 3 of the second blade body 4 always overlaps the protective plate 10. By providing such a protection plate 10, an object can be sandwiched between the first and second blade portions 1 and 3 except for the gap formed between the first blade portion 1 and the restriction surface 9. I can not do it. In other words, by setting the width of the gap into which the object to be cut is inserted to the minimum size that allows the object to be cut to be inserted, foreign matter such as fingertips can be removed by the first and second blades 1 and 3. The danger of being caught in between can be reduced.

In the case shown in the figure, the protection plate 10 is provided only on the first blade body 2, but it may be provided only on the second blade body 4, or may be provided on the first and second blade bodies 2, 2. It may be provided in both of the four. When both are provided, the protective plate provided on the second blade body 4 is provided with the first blade body 1 so that the blade portions 1 of the first blade body 2 that open and close within a predetermined angle range always overlap. It is provided extending in the opening and closing direction of the blade body 2. In the illustrated case, the first blade body 2 and the protection plate 10 are formed by one member, but they may be formed as separate members and combined.

FIG. 2 is a diagram showing scissors according to another embodiment of the present invention. FIG. 2 (B) is a cross-sectional view taken along the line I-I of FIG. 2 (A), and FIG. — Figure 2 (D) is a cross-sectional view along the line II. In the case shown in FIG. 2, the protection plate 1 has a limiting surface 9 formed facing the blade 1 of the first blade 2 and forming a predetermined gap with the blade 1. 0 force Provided on the first blade 2. The protection plate 10 is provided with a cover 11 in parallel with the protection plate 10 so as to cover the second blade 4, and the end face of the force-pa unit 11 is a second limiting surface. 1 and 2. In other words, the second blade 4 moves between the protective plate 10 and the cover 11, and the gap other than the gap formed by the first blade 1 and the limiting surfaces 9 and 12. In this embodiment, the second blade 4 is not exposed to the outside, so that it is safer.

FIG. 3 is a diagram showing scissors according to another embodiment of the present invention.

The first blade 2 and the protection plate 10 are composed of one member, and the first blade

The tip of 2 is connected to the protective plate 10 and the gap formed by the blade 1 and the limiting surface 9 has a closed hole shape. According to the present invention, a scissor for use in which a new object to be cut such as a nail clipper is inserted from a lateral direction loses the function of cutting the object to be cut. In addition, the tip shape of the first blade body 2 can be rounded while securing a sufficient area at the tip end, so that safety can be further enhanced.

FIG. 4 is a diagram showing scissors according to another embodiment of the present invention, and FIG. 4 (B) is a cross-sectional view taken along line III-III of FIG. 4 (A). In FIG. 4, the first blade body 2 and the protection plate 10 are configured separately from each other, and the protection plate 10 is provided with a clearance between the first blade portion 1 and the first blade portion 1. The first blade body 2 is provided on the first blade body 2 so that the first blade body 2 can freely move in a direction in which the width dimension is changed. That is, in the case shown in the drawing, the first blade body 2 is provided with a plurality of screw holes 13 in a direction in which the width dimension of the gap changes stepwise. Has a built-in fixing screw 14, and it is possible to change the gap according to the thickness of the workpiece by selecting the screw hole 13 for mounting the fixing screw 14. As described above, by changing the width of the gap in accordance with the thickness of the object to be cut, maximum safety can be ensured for various objects to be cut.

The method of fixing the protection plate 10 to the first blade 2 is not limited to the method shown in FIGS. 4 (A) and 4 (B). For example, as shown in Fig. 4 (C), a guard 15 is provided at the tip, a slotted projection 15 is provided on the protective plate 10, and the projection 15 is attached to the mounting hole 1 The protective plate 10 may be fixed to the first blade body 2 by press-fitting it into the 3a. When the projection 15 is pressed into the mounting hole 13a, the hook 15a provided at the end of the projection 15 opens and engages with the mounting hole 13a. Fixed to the blade body 2. The engaged state of the hook 15a and the mounting hole 13a can be easily released by pinching the hook 15a, so select the mounting hole 15a for press-fitting the projection 15 Thereby, the width of the gap can be easily changed according to the thickness of the object to be cut. In the case shown in FIG. 4, the gap is changed stepwise according to the positions of the screw holes 13 (mounting holes 13a) provided on the first blade body 2. However, for example, the screw hole 13 of the blade body 2 may be made one, and the protective plate 10 may be formed with an elongated hole so that it can be fixed at an arbitrary gap using a fixing screw.

FIG. 5 is a view showing scissors according to another embodiment of the present invention. A connecting portion 5 between the first blade body 2 and the second blade body includes first and second blade bodies 2 and 4. Force par surface that covers one side of A protection plate 10 having a slit 17 for inserting an object to be cut is provided. The first and second blades 1 and 2 are formed so that the blade 1 of the first blade 2 and the blade 3 of the second blade 4 that are opened and closed within a predetermined angle range are always covered. The blades 2, 4 extend in the opening and closing directions. As a result, it is possible to prevent foreign matter having a width larger than the gap of the slit 17 from being caught between the first and second blade portions 1 and 3. In the illustrated case, the protection plate 10 is provided so as to cover one surface of the first and second blades 2 and 4, but may be provided so as to cover both surfaces thereof. Further, the slit 17 may have a closed hole shape such as a gap shown in FIG.

The present invention is not limited to the above-described embodiment, and can be variously modified without departing from the gist thereof. For example, as shown in FIG. 6, the present invention can be applied to scissors having no connecting portion 5. The protection plate 10 may be provided with a hole having a size or shape that does not impair safety. Industrial applicability

INDUSTRIAL APPLICABILITY The present invention can be industrially used as a technology for safely using scissors.

Claims

The scope of the claims

1. Scissors that cut the workpiece by manual operation,

A first blade body having a first blade portion,

A second blade body that has a second blade portion that cuts the object to be cut with the first blade portion, and that is openably and closably connected to the first blade body;

A protection plate provided on at least one of the first and second blade bodies, and formed with a limiting surface facing the blade part and forming a gap between the blade part and the object to be cut. Scissors characterized by comprising:

2. When the first and second blades are opened beyond the width of the gap formed by the blade and the limiting surface, at least one blade overlaps the protection plate of the other blade. The scissors according to claim 1, wherein the scissors are fitted.

3. The second blade is provided on the protective plate provided on the first blade body and having a limiting surface facing the blade portion of the blade body and forming a predetermined gap with the blade portion. 2. The scissors according to claim 1, wherein a force par portion for covering a body is provided.

4. The width of the gap is changed, the protection plate forming the gap between the first blade body and the blade portion of the blade body being movably provided, and changing the width dimension of the gap. No scissors.

5. Scissors that cut the object by manual operation,

A first blade body having a first blade portion,

A protection plate provided at a connecting portion between the two blades, having a force-par surface covering at least one surface of both the blades, and having a slit formed therein for inserting an object to be cut. And scissors.