JP2001300334A - Card shredding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a card shredding device which is capable of easily shredding cards. SOLUTION: This device has a motor 2 as a drive source for rotational driving, a first revolving shaft 9 and second revolving shaft 8 which are arranged in parallel and are rotated in directions opposite to each other by the drive source, approximately disk-shaped cutters 12a which are fixed to the first revolving shaft 9 and rotate and approximately disk-shaped cutters 12b which are fixed to the second revolving shaft 8 and rotate. The cutters 12a are arranged to be parted from each other in an axial direction and the cutters 12b are arranged between the cutters 12a in the axial direction and come into sliding contact with the cutters 12a. Both of the end edges of the cutters 12a coming into sliding contact with the cutters 12b and the end edges of the cutters 12b coming into sliding contact with the cutters 12a are sharply formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card shredding device, for example, a device for shredding a credit card or the like into strips.

[0002]

2. Description of the Related Art Conventionally, plastic cards, such as credit cards, on which information is stored by attaching a magnetic tape or embedding an IC, have been widely used.

[0003] Such magnetic cards, PET cards,
Various kinds of cards such as IC cards are used in a wide range of applications such as cash cards, credit cards, prepaid cards, and members' cards. In these cards, stored information and characters written on the surface are valuable, and if you throw away a card that is no longer needed for reasons such as withdrawal from membership, information will leak or the card will be lost. The risk of forgery remains. In the present age in which the management of personal information is required, it is required that such a card is not managed but left.

[0004]

In such a situation, if it is to be disposed of personally, it is sufficient to shred it with scissors. Since the cards are discarded, it is troublesome to frequently shred them with scissors one by one. Furthermore, if a paper shredder is used for shredding a plastic card, there is a high possibility of failure due to a difference in hardness, and paper and plastic should not be mixed and discarded from the viewpoint of separating dust.

Therefore, the appearance of a compact and robust shredder developed and designed exclusively for plastic cards has been desired.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art and to meet the expectation of the times. An object of the present invention is to provide a card shredding apparatus which can easily shred a card. is there.

[0007]

In order to achieve the above object, an apparatus according to the present invention comprises a first and a second drive source which are arranged in parallel with a drive source for rotational drive and which are rotated in opposite directions by the drive source. A two-rotation shaft, a substantially disk-shaped first and second cutter fixed to the first rotation shaft and rotating with the first rotation shaft, and fixed to the second rotation shaft and rotating with the second rotation shaft; A card shredding device having a substantially disk-shaped third cutter, and a housing for accommodating the drive source and the first, second, and third cutters, wherein the housing includes the first and second cutters. A card insertion slot is provided above a slidable contact portion between the cutter and the third cutter, the first and second cutters are arranged so as to be axially separated from each other, and
The cutter is disposed between the first and second cutters in the axial direction, and is in sliding contact with both the first and second cutters, and an edge portion of the first and second cutters in sliding contact with the third cutter. An edge portion of the second cutter that is in sliding contact with the first and second cutters is formed to be sharp.

A card peeling bar is provided between the first and second cutters, between a peripheral portion of the third cutter and the first rotating shaft, and extends in a direction perpendicular to the first rotating shaft. Is further provided.

The housing includes the first, second, and third housings.
An openable / closable cover is provided below the cutter, and a shredded card outlet is provided at a position of the cover below a sliding contact portion between the first and second cutters and the third cutter. It is characterized by having.

[0010] The housing may further include a housing box for accommodating the shredded card so that it can be taken out below the sliding contact portion between the first and second cutters and the third cutter.

[0011]

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the relative arrangements, numerical values, and the like of the components described in the embodiments are not intended to limit the scope of the present invention to them unless otherwise specified.

(One Embodiment) FIG. 1 is a side sectional view of a shredder as one embodiment of a card shredding device according to the present invention. FIG. 2 is a sectional view taken along line XX of FIG.

Reference numeral 1 denotes a bottom plate, and rubber feet 27 are provided at four corners. The rear plate 4 is attached to the back side of the bottom plate 1. On the upper surface of the bottom plate 1, a magnet catch 23 is attached on the back side, and the chip receiving box 5 is placed on the front side so as to be able to be pulled out. The chip receiving box 5 has a handle 5a so that the user can easily pull it out.
Is provided. The chip receiving box 5 is a drawer made of metal, and is configured to be slid by a magnet provided on the magnet catch 23 unless it is pulled out with a certain force or more.

A microswitch 24 is provided so as to be turned on when the chip receiving box 5 is completely stored in the shredder. The micro switch 24
The chip receiving box 5 is attached to the intermediate plate 6 so as to be in contact with the upper part on the rear side.

The intermediate plate 6 is located in the middle of the rear plate 4 in the vertical direction.
It is attached substantially parallel to the bottom plate 1. The intermediate plate 6 is composed of two parts, a front intermediate plate 6a and a rear intermediate plate 6b, and the front intermediate plate 6a is rotatable around a hinge pin 29 attached to its rear end. ing.
In a normal use state, the front side end is fixed by an intermediate plate fixing screw 28.

A drive motor 21 is mounted on the rear plate 4 above the intermediate plate 6 as a drive source. The shaft 21 a of the drive motor 21 is fitted on the gear 18.
The drive motor 21 receives power from the outside via a switch 22, and ON / OFF switching is performed by pressing the switch 22.

The gear 18 meshes with the gear 19,
The gear 19 rotates counterclockwise in the figure by the driving force of the motor 21. The gear 19 is fitted with the shaft 9,
It rotates around this axis 9. The shaft 9 is further provided with four disk-shaped cutters 12 and a motor 21.
Rotates the cutter 12a. Also, shaft 9
Since the shaft 8 is provided in parallel with the shaft 8 and the rotation of the shaft 9 is transmitted to the shaft 8 via a gear, the disc-shaped cutter 12b attached to the shaft 8 also rotates. The card 100 inserted from above the apparatus is cut into strips by passing between the rotating cutters 12a and 12b. Here, the cutters 12a, 12b
Is made of S55C, and the outer periphery is subjected to induction hardening. Thereby, it has HRC45-50 hardness. Also, so that the torque of the cutter shaft is 8 Nm or more,
The motor 21 and the gears 18 and 19 are configured. Thereby, even if it is a plastic card, it can be shredded smoothly. Also, the cutters 12a, 12b
Have the same dimensions. Here, the outer diameter is 61 mm and the width is 10 m.
m.

Reference numeral 7 denotes a cover that covers the gears 18 and 19, the cutters 12a and 12b, and the motor 21. The switch 22 is attached to the cover 7.

Reference numerals 13 and 14 are entrance guides for inserting cards provided on the cover 7 for preventing two cards 100 from being inserted. The entrance guide 13 is a guide for an embossed card, and is provided with a gap large enough to allow one embossed card to pass through smoothly, but not two to pass through. On the other hand, the entrance guide 14 is a so-called raw card guide without embossing. Since a card without emboss is thinner than an embossed card, there is a possibility that two cards can be inserted from the guide for the embossed card.
The entrance guide 14 is provided with a smaller gap than the entrance guide 13. FIG. 1 shows a use state when shredding a raw card. When shredding an embossed card, the entrance guide 14 is removed.

On both sides of the gap provided in the entrance guide, peeling bars 16 extend downward. This peeling stick 1
6, the strip-shaped card is inserted into the cutter 12
a, 12b, and are guided downward.

A cut-out card outlet 6c is provided in a portion of the intermediate plate 6a below the peeling bar 16, that is, just below the meshing position of the cutters 12a and 12b. It falls into the chip receiving box 5 through the outlet 6c. On both sides of the outlet 6c of the intermediate plate 6a, funnel-shaped outlet guides 15 are attached.

In FIG. 2, reference numeral 2 denotes a right side plate, and 3 denotes a left side plate, which are fixed to the bottom plate 1, the rear plate 4 and the cover 7, respectively. The shafts 8 and 9 are rotatably supported by these side plates 2 and 3. In order to be rotatable, the side plates 2, 3
And oilless bearings 25a to 25d
Is provided. The shafts 8, 9 are inserted into the reinforcing plates 10a, 10b via oilless bearings 26a to 26d. The reinforcing plates 10a and 10b are attached to left and right regulating plates 17a and 17b, respectively, and the left and right regulating plates 17a and 17b are fixed to the cover 7. That is, the reinforcing plates 10a and 10b are indirectly fixed to the cover 7 and can prevent the shafts 8 and 9 from bending. Right and left regulating plate 17
a and 17b also serve as left and right guides for the inserted card and the shredded card.

The shafts 8 and 9 have gears 20a, 2a,
0b are attached, and these gears 20a, 20a
b, the driving force of the motor 21 is
It is told to. Collars 11a to 11d are provided on the shaft 8 so as to sandwich the reinforcing plates 10a and 10b. This prevents the shaft 8 from shifting in the left-right direction.

As shown in FIG. 2, the cutter 12a
The number of the cutters and the number of the cutters 12b are alternately arranged, and the diameters of the respective cutters are determined so that the cutters 12b mesh between the cutters 12a. That is, the total of the radii of the cutters 12a and 12b is configured to be slightly (here, 1 mm) larger than the distance between the center of the shaft 8 and the center of the shaft 9. There are two types of cutters, both of which are generally disc-shaped,
The periphery of the bottom on both sides is both sharply configured,
Some are configured to be sharp only around the bottom surface on one side. Cutters that are sharp only on one side are used as cutters located at both ends in the axial direction among the cutters arranged alternately. As described above, since the disk has the sharp cutters at the peripheral ends on both sides in the axial direction, it is possible to cut the card into seven pieces with seven cutters.

The peeling rod 16 is attached to each cutter 12
Seven are provided between a and 12b. This allows
It is possible to prevent the chip of the shredded card from being caught between the cutters, rotating together with the cutter, and not falling from the card outlet 6c.

Next, the operation of the shredder configured as described above will be described.

First, the switch 22 is depressed and the motor 21 is driven while the chip receiving box 5 is pushed in all the way. Thus, the shaft 21a of the motor 12 rotates clockwise in the drawing, and at the same time, the gear 18 also rotates clockwise. As a result, the gear 19 and the shaft 9 and the cutter 12a rotate counterclockwise, and the gear 8 and the shaft 9 are rotated through the gears 20a and 20b.
And the cutter 12b rotates clockwise.

When the card 100 is inserted from the entrance guide 13 in this state, the card 100
And is cut at the intersection of the cutter 12b and divided into seven strip-shaped chips in the present embodiment.

The card piece is securely removed from the cutters 12a and 12b by the peeling rod 16, and the right and left regulating plates 17 are removed.
The outlet guide 15 guides the card to the card outlet 6 c and accumulates in the chip receiving box 5. When the chip receiving box 5 is full of chips, the chip may be pulled out with the handle 5a and the chips inside may be discarded.

Since the cover 7 is provided above the cutters 12a and 12b and the intermediate plate 6 is provided below the cutters 12a and 12b, it is possible to prevent a hand from being erroneously put into the cutter portion and to prevent an injury.

In the event that the card is jammed in the cutter portion, the chip receiving box 5 is pulled out, and the intermediate plate fixing screw 28 is loosened, so that the intermediate plate 6a rotates downward around the hinge pin 29, and the cutter is rotated. The part can be reached (see FIG. 3). In this state, if the card causing the jam is removed, the jam can be easily eliminated. At this time, the tip receiving box 5
Micro switch 24 is turned off by pulling out
, The motor 21 does not rotate,
It is safe.

In the present embodiment, the card is inserted after the user presses the switch 22. However, the present invention is not limited to this, and a card sensor is provided in the entrance guide 13. Alternatively, the motor 21 may be automatically rotated when a card is inserted.

In this embodiment, four cutters and three cutters intersect, but the number of cutters is not limited to this. However, it is desirable to use at least three cutters so that the information written on the card surface cannot be easily read.

[0034]

According to the present invention, a card shredding device capable of easily shredding a card can be provided.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a shredder according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is a side sectional view of the shredder according to one embodiment of the present invention during maintenance.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 bottom plate 2 right plate 3 left plate 4 rear plate 5 chip receiving box 6 intermediate plate 7 cover 8,9 cutter shaft 10 reinforcing plate 11 collar 12 cutter 13,14 entrance guide 15 exit guide 16 peeling bar 17 left and right regulating plate 18 motor shaft Gears 19, 20 Gears 21 Drive motor 22 Start switch 23 Magnet catch 24 Micro switch 25, 26 Oilless bearing 27 Rubber foot 28 Intermediate plate fixing screw 29 Hinge pin

Continued on the front page (51) Int.Cl. ⁷ Identification FI FI Theme Court II (Reference) B26D 7/18 B26D 7/18 E

Claims (4)

[Claims] 1. A drive source for performing rotational driving, first and second rotating shafts arranged in parallel and rotated in opposite directions by the driving source, and the first rotating shaft fixed to the first rotating shaft. A substantially disk-shaped first and second cutter rotating together with the second rotating shaft, a substantially disk-shaped third cutter fixed to the second rotating shaft and rotating with the second rotating shaft, the drive source, and the first and second cutters; A card shredding device comprising: a housing accommodating second and third cutters; and the housing includes the first and second cutters and the third cutter.
A card insertion slot is provided above a sliding contact portion of the cutter, the first and second cutters are arranged so as to be spaced apart in the axial direction, and the third cutter is arranged in the axial direction in the first and second cutters. An edge portion of the first and second cutters disposed between the cutters and in sliding contact with both the first and second cutters and in sliding contact with the third cutter, and in sliding contact with the first and second cutters. A card shredding device, wherein both end portions of the third cutter in contact with each other are formed sharp. 2. A card which is disposed between the first and second cutters, between a peripheral portion of the third cutter and the first rotation axis, and extends in a direction perpendicular to the first rotation axis. The card shredding device according to claim 1, further comprising a peeling bar. 3. The housing according to claim 1, wherein the first, second, and third housings are provided.
An openable / closable cover is provided below the cutter, and a shredded card outlet is provided at a position of the cover below a sliding contact portion between the first and second cutters and the third cutter. 2. The card shredding device according to claim 1, wherein: 4. The housing according to claim 1, further comprising a housing box for accommodating a shredded card so as to be able to be taken out below a sliding portion between said first and second cutters and said third cutter. The card shredding device according to claim 1.