JP4742287B2 - Hand shredder - Google Patents

Description

The present invention relates to a hand shredder that can cut a document or the like on which information to be concealed is finely cut and efficiently prevent leakage of information relating to business or personal privacy.

A large shredder is used exclusively for documents that you do not want to be exposed to the eyes of a third party as a countermeasure against secret leakage in a company, and a means of cutting and discarding the documents as finely as possible is commonly used.
On the other hand, at home, large documents such as direct mail that are sent are torn by hand or discarded by using a small shredder that is manually rotated and cut. However, the electric shredder used at home is also required to be small in relation to the frequency of use.

  Regardless of whether it is for office use or home use, the shredder is cut with a rotating blade. For example, if you want to cut only the address part of direct mail or paper with staples attached, cut with a shredder. Not suitable for.

Therefore, in Japanese Patent Laid-Open No. 10-33846 (Patent Document 1), “slack” is produced when two sheets of hard and easy-to-hold plates are faced to each other, and three or more cutting edges and paper are folded inside. Disclosed is a hand shredder that can easily dispose of one or two unnecessary documents by providing a convex portion for holding the protrusion and the like and a hole in the receiving edge of the blade edge.
In particular, in FIG. 8, it is described that the paper to be cut is sandwiched between the hand shredder and the paper or the hand shredder is moved in the direction of the blade edge so that the paper can be cut and the cutting position can be controlled.

Furthermore, in Utility Model Registration No. 3064012 (Patent Document 2), a thin plate-like blade having a slant is provided on the lower surface of the push button in several rows in a direction transverse to the longitudinal direction of the main body, and at both ends of the push button. Provided with a compression coil spring, inscribed in the upper half body, fastened with a push button holding plate, and configured so that the push button can be moved up and down, and equipped with a paper backing plate with several rows of blade escape narrow holes in the lower half body A hand shredder is disclosed.

  That is, the basic structure of the hand shredder described in Patent Document 2 is substantially the same as that of the invention described in Patent Document 1 in which the paper is sandwiched between the hand shredder and the paper is cut by moving the paper or the hand shredder. The blade is moved up and down by a push button, so that the direction of the paper can be freely changed, and it can be cut from the longitudinal direction or the lateral direction of the paper.

In addition, by using a mechanism that has a plurality of upper and lower blades that overlap one another, the scissors can be cut at the same time, and the paper can be partially cut and broken by hand. A technique that can be shredded in a more stable shape is disclosed in JP-A-10-305179 (Patent Document 3).
According to the invention described in Patent Document 3, since the method of use is almost the same as that of a normal bag, it can be used easily, and only necessary portions can be cut.
Japanese Patent Laid-Open No. 10-33846 (Claims, FIGS. 1 and 8) Utility Model Registration No. 3064012 (Claims, FIG. 1) Japanese Patent Laid-Open No. 10-305179 (Claims, FIG. 2)

The delivery material to be sent to the office and home, postcards and letters, of course, there is such as courier.
With the development of printing technology in recent years, for example, these delivery items are attached and used with the address sticker directly or stored in a plastic bag.
The shape of the package that holds these deliverables is not constant, and it may be difficult to cut the package directly with a shredder, so the address sticker or plastic bag is peeled off the package to prevent leakage of information. It is preventing.

However, since the adhesive is applied to the back surface of the address seal, it is very difficult to completely remove it from the package, and the adhesive bites into the blade when cutting with a conventional shredder. For this reason, there is a problem in that cutting often leads to a state where cutting must be stopped.
In addition, the plastic bag in which the address sticker is stored can be peeled off from the package , but there is a possibility that the vinyl may get entangled with the blade of the shredder and damage the apparatus at the time of cutting .

Further, the shredders described in Patent Document 1 and Patent Document 2 have a simple basic structure. However, when using the shredder, it requires labor to insert paper into the shredder as a preparatory preparation. Lack.
In addition, since the scissors described in Patent Document 3 are cut according to the same principle as general scissors, the method of use is very simple, but it is inconvenient to use, for example, when it is desired to cut only the central portion of paper. is there.

  Furthermore, according to the techniques described in Patent Documents 1 to 3, it is possible to safely and cleanly cut thin documents, but it is not suitable for cutting thick items such as cardboard.

In view of the present situation, the present invention can be used easily and easily without any trouble, and can accurately and efficiently cut a place where personal information is written, such as an address and a name, regardless of the type, shape, or material of the paper. It is intended to provide a hand shredder that is extremely effective in preventing information leakage.

In order to achieve the above object, the invention according to claim 1 of the present invention provides:
The cutting edge of the shredder body , which has an arc shape with a gentle side view and is rounded in the side view and has a tail portion as a handle in a rectangular shape in plan view, is pulled below the head portion. A cartridge holding a plurality of blades in parallel in the hand direction is detachably provided,
The handle part is configured to be foldable in the blade direction via a hinge, and configured to cover the plurality of blades by the folded handle part,
The plurality of blades are normally covered with a cover member made of an elastic body, and when the shredder body is pressed against the object to be cut, the blade protrudes from the cover member to cut the object < A hand shredder characterized by the above.

The invention according to claim 2 of the present invention is
The hand shredder according to claim 1,
The cartridge is
It is characterized by comprising a plurality of cartridge main bodies and a blade held by each cartridge main body.

The invention according to claim 3 of the present invention is
The hand shredder according to claim 1 or 2 ,
The plurality of blades provided on the shredder body are:
The shredder body is arranged in parallel along the major axis direction.

The invention according to claim 4 of the present invention is
In the hand shredder in any one of Claims 1-3,
The blade held by the cartridge main body is
With respect to the cartridge main body, in which only a part of the cutting edge, characterized in that it is provided so as to project at an angle.

The hand shredder according to the present invention is detachably provided with a cartridge holding a plurality of blades in parallel with the direction of the blade edge in the pulling direction below the head portion of the shredder body , and the handle portion is provided via a hinge. It is possible to fold in the direction of the blade and cover the plurality of blades with the folded handle portion, so that it is easy to draw, and when not in use, the blade tip is covered with the tail portion of the handle portion. Occurrence can be prevented.

The plurality of blades are normally covered with a cover member made of an elastic body, and when the shredder body is pressed against the object to be cut, the blade protrudes from the cover member to cut the object. Therefore, there is almost no fear of accidental injury in combination with the above effect.

In addition, since it has an extremely simple configuration, it can be manufactured at low cost with a small number of parts, and it can be made almost the same size as a cutter knife or stationery bag, making it difficult to place and store. Therefore, it can be used easily and safely .

The usage is almost the same as the cutter knife, and no special operation is required, but it can be cut securely and easily without much force, and only the parts that you want to make unreadable are efficiently finely divided. Can be cut.
That is, since it can cut partially, it is highly practical, for example, it does not generate unnecessarily fine paper waste after cutting, which increases the volume.

Hereinafter, a hand shredder according to the present invention will be described in detail with reference to the accompanying drawings .
The present invention is not limited to the illustrated embodiment , and various modifications can be made without departing from the scope of the present invention.

FIG. 1 shows the shape of a hand shredder body and the positions and shapes of a plurality of cutting edges exposed from the hand shredder body in the hand shredder of the present invention.
As shown in the figure, the hand shredder 1 has a plurality of blades 4, 4... At a lower required portion of the head portion 2 of the shredder body 1a having a required thickness and length, and a long axis of the shredder body 1a. A portion other than the head portion 2 is used as the handle portion 3 in parallel with a predetermined interval and in parallel on the same line perpendicular to the major axis.
From the viewpoint of preventing unforeseen accidents when the blade 4 is not in use, it is preferable to suppress the protruding length of the sharp blade edge to 1.0 mm or less.
Moreover, although the space | interval of the adjacent blades 4 and 4 can cut finely, so that it is narrow, about 1.0-5.0 mm is preferable.

As is apparent from FIG. 1, the shredder body 1a is a thick plate-like body having a length of about 140 mm and a thickness of about 15 mm, and has a circular arc shape in a side view, and the head portion 2 also has a round side view. The handle portion 3 is formed as an arm shape so that the width of the bottom portion becomes narrower from the head portion 2 toward the tail portion.
The shape of the shredder body 1a is Yes in the longitudinal direction pulling the orientation of the cutting edge of the blade 4, although Ru tare the pull-away to easily practical design, f head portion 2 into a plurality of blades 4, 4 ...・ ・ As long as they are provided in parallel in the direction of the puller , there is no particular limitation on the shape.
Although not shown, the shape of the handle portion 3 can be variously changed according to functionality, design, etc., such as providing a grip portion, a rod shape, a square shape, or the like.

Further, the blade 4 affects the cutting width depending on the interval, and the depth of cutting depending on the protruding length thereof, so that, for example, when cutting a thick one such as cardboard, depending on the purpose of use, What is necessary is just to use what the blade 4 is exposed highly, and what is necessary is just to narrow the space | interval of the blade 4 and the blade 4 when it is desired to make a cutting width narrower.
Further, when cutting hard paper, it is desirable to use a strong blade having a blade thickness.

By adopting such a configuration, although not shown, when cutting paper in the same manner as a cutter knife, it is possible to make six cuts with a cutting width of the interval between the blades 4, 4.
Therefore, for example, when discarding the direct mail address part or cardboard with an address sticker, if only the address part is cut by the hand shredder 1 and discarded, the amount of paper waste after bulky fine cutting is reduced. Can protect personal information more reliably.
Needless to say, it is possible to cut not only paper, but also a resinous material such as an OHP sheet or a material written on a cloth.

FIG. 2 shows an example of the folding structure and cartridge mounting structure of the hand shredder body in the hand shredder of the present invention.
2A, the hand shredder 11 of the present invention is configured such that the handle portion 13 constituting the shredder main body 11a can be folded in the direction of the blade 14 via the hinge 15. As shown in FIG.

Therefore, when not in use, the grip portion 13 by folding as shown in FIG. 2 (B), the the tip portion of the blade 14 (blade) is covered by the grip portion 13, thereby preventing the occurrence of accidents when not in use.
Furthermore, as shown in FIG. 2 (C), the head portion 12, a pair of left and right divided bodies 12a, together constituting between 12b, intended for holding the cartridge 16 for replacement blade between the divided bodies 12a, 12b, The pair of left and right divided bodies 12 a and 12 b are integrally connected by screws 17.

FIG. 3 shows an example of a cartridge structure in the hand shredder of the present invention.
The cartridge 16 shown in FIG. 2 is composed of a plurality of cartridge main bodies 16a, 16a,... As shown in FIG.
Each cartridge main 16a, as is apparent in FIG. 3 (B), the one blade 14, recessed holding portion 16b for the tip (blade edge) is held in a projectable state, respectively formed It is.
The cartridge 16 is held by a screw 17 between the pair of left and right divided bodies 12a and 12b in a state where a plurality of the cartridge main bodies 16a are overlapped, and each cartridge main body 16a is integrated with an adhesive or the like. If not, only the damaged blade can be replaced.

  Since the cutting edge of the blade 14 has an angle that makes an acute angle with the paper when cutting, the cutting can be performed smoothly, so that the holding portion 16b is arranged perpendicular to the cartridge main body 16a. However, as is apparent from FIG. 3 (B), it is preferable to form a slight angle so that only a part of the blade edge protrudes.

In FIG. 3 , the tip portion (blade edge) of the blade 14 is exposed to about 1.0 mm, but can be changed according to the purpose.

When cutting is actually performed, the narrower the gap between the blades 14, the smaller the width can be cut. Therefore, when the cutting width is increased, a cartridge having a wide gap between the blades 14 may be used.
That is, if cartridges with various cutting widths are easily prepared in advance, it is possible to cut with a width according to the purpose.
Moreover, if a thing with different protrusion amount of a blade edge | tip is used, even if it is thick, it will become possible to shred.

When mounting the cartridge 16 to the head portion 12, as shown in FIG. 2 (C), a groove 12c provided in each of the divided body 12a of the head portion 12 divided body 12b, crowded fitted a cartridge 16 to 12c, further screws 17 is screwed together.
Therefore, the cartridge 16 can be replaced for each cartridge main body by attaching / detaching the screw 17 or the cartridge itself easily, and when the blade 14 becomes sharp and becomes sharp, it is quickly replaced. It is possible.
Furthermore, even while the hand shredder 11 is being used, the blade 14 can be firmly fixed without moving, so that it can be used with confidence.

FIG. 4 shows an example of a cartridge structure different from that shown in FIG. 3 in the hand shredder of the present invention.
Hand shredder 21 in FIG. 4, as shown in FIG. 4 (A), the handle portion 23 and the head portion 22 is similar to that of FIG. 3, the shape of the cartridge are different.
In other words, the cartridge 26 in FIG. 4, as is apparent from FIG. 4 (B), the arrangement secured six blades 24, 24 ... in the plate-like cartridge main body 26a, in parallel to exist a required interval Is formed.
In FIG. 4 , six blades are arranged and fixed at regular intervals with respect to the cartridge main body 26a. However, since one blade formed in a sawtooth shape can be attached to the cartridge main body and used. The configuration is not particularly limited.

There is no particular limitation on the attachment of the cartridge 26 to the head portion 22, and although not shown, a concave holding portion can be provided in the head portion 22 so that the cartridge 26 can be fitted therein.
It is also possible to provide engagement pieces at both ends of the cartridge 26 and attach the engagement pieces to both ends of the head portion 22 for attachment.

FIG. 5 shows an example of the structure of the cover member in the hand shredder of the present invention.
As is clear from FIG. 5A, the hand shredder 31 in FIG. 5 comprises a shredder main body 31a with a head portion 32 and a handle portion 33, and a plurality of blades 34, 34 at required portions of the head portion 32. Are arranged in parallel, a cover member 35 is provided to cover the cutting edge of each protruding blade 34.
The cover member 35 is made of an elastic material such as natural rubber. When the cover member 35 provided on the head portion 32 is pressed against an address field such as a postcard, the blades 34, 34,. The blade tip protrudes from the surface of the cover member 35, and the address field is cut evenly with a required width.

As shown in FIG. 5, since the tip of the dangerous blade 34 is always covered with the cover member 35, it does not protrude, so there is almost no risk of injury, and it is detachable. Unlike caps, it is integrated so there is no risk of losing it.
In actual use, it is very easy to use because it only needs to be pressed against the paper to be cut.

The material of the cover member 35 is not particularly limited as long as it is an elastic body, but natural rubber, isoprene rubber, styrene butadiene rubber, butadiene rubber, chloroprene rubber, nitrile rubber, butyl rubber, ethylene propylene rubber, urethane rubber, silicon An elastomer such as rubber, acrylic rubber, chlorosulfonated polyethylene rubber, fluororubber, hydrogenated nitrile rubber, epichlorohydrin rubber, polysulfide rubber and the like is preferable.
Further, since the cover member 35 and the paper are in contact with each other, if the material has a large friction coefficient with the paper, it is difficult to cut while pressing.
In such a case, it is preferable to perform a surface treatment to smooth the surface.

The hand shredder according to the present invention can provide a hand shredder that can easily and partially cut personal information such as an address written on an envelope or cardboard. Can be used.

It is a perspective view which shows the shape of the hand shredder main body in this invention , and the position and shape of the some blade edge | tip exposed from the hand shredder main body . Definitive to the present invention, an explanatory diagram showing an example of the folding structure and the cartridge mounting structure of the hand shredder body, a side view at the time of use (A), a side view (B) in the folded state, (C ) Shows an exploded view of the main part. Definitive to the present invention, an explanatory diagram showing an example of a cartridge structure, the perspective view showing the overall (A), is a diagram showing a perspective view of (B) is a fragmentary. Definitive to the present invention, a diagram showing an example of a different cartridge structure diagrams a side view, (B) is a perspective view of the cartridge body, indicated respectively at (A) when used. A diagram showing an example of the structure of a definitive cover member to the present invention, is a diagram of a perspective view, (B) is an enlarged view around the cover, respectively illustrated in (A) when used.

1,11,21,31 Hand shredder 2,12,22,32 Head portion 3,13,23,33 Handle portion 4,14,24,34 Blade 16,26 Cartridge 35 Cover member

Claims (4)

The cutting edge of the shredder body , which has an arc shape with a gentle side view and is rounded in the side view and has a tail portion as a handle in a rectangular shape in plan view, is pulled below the head portion. A cartridge holding a plurality of blades in parallel in the hand direction is detachably provided,
The handle part is configured to be foldable in the blade direction via a hinge, and configured to cover the plurality of blades by the folded handle part,
The plurality of blades are normally covered with a cover member made of an elastic body, and when the shredder body is pressed against the object to be cut, the blade protrudes from the cover member to cut the object < A hand shredder characterized by: The cartridge is
The hand shredder according to claim 1, comprising a plurality of cartridge main bodies and a blade held by each cartridge main body. The plurality of blades provided on the shredder body are:
Hand shredder according to claim 1 or 2, characterized in that in parallel along the long axis direction of the shredder body. The blade held by the cartridge main body is
The hand shredder according to any one of claims 1 to 3, wherein a part of the blade edge is provided so as to protrude at an angle with respect to the cartridge main body.