JPH11290708A - Sheet shredder of paper or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the leak of secrete information by having members for diagonally displacing sheets sent from a perpendicular direction with respect to a rotating axis direction of a pair of roll cutters disposed with many cutting blades in parallel, diagonally cutting sheets and eliminating the connection of the characters and symbols of the respective cut pieces. SOLUTION: The many cutting blades 2, 2 are axially formed at a pair of the roll cutters 1, 1. A transfer base 3 for transferring the sheets 4, such as paper, forms a guide section 5 for diagonally changing the sheets 4 sent from the direction perpendicular to a pair of the roll cutters 1, 1 on one side of its front end section. The sheets 4 sent onto the transfer base 3 are diagonally changed in the direction by the guide section 5 and are inserted between a pair of the roll cutters 1 and 1. The sheets 4 are diagonally shredded with respect to the direction where the sheets are stated with the characters and symbols. As a result, the shredded portions are not connected with the characters and symbols and, therefore, the reading thereof is made infeasible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shredder for cutting a sheet such as paper with a roll cutter having a large number of cutting blades.

[0002]

2. Description of the Related Art Heretofore, there has been known a shredder in which a sheet such as paper is vertically or horizontally inserted between a pair of roll cutters having a large number of cutting blades and cut into a large number of small pieces. .

[0003]

In the above-mentioned conventional apparatus, since a sheet such as paper is transported in the vertical or horizontal direction and shredded, even if the sheet is shredded, it can be partially read and leakage of confidential information is prevented. There was a problem of being connected. This was particularly problematic for vertical text sheets.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and the present invention is applied to a case where a plurality of cutting blades are fed in a direction perpendicular to the rotation axis direction of a pair of roll cutters arranged in parallel. A member that displaces the incoming sheet obliquely, and cuts the sheet obliquely so as to eliminate the connection of characters and symbols of each cut strip.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows the first embodiment of the present invention.
This is an example. Reference numeral 1 denotes a pair of roll cutters having a large number of cutting blades 2 and 2 formed in the axial direction. Reference numeral 3 denotes a transfer table for transferring a sheet 4 such as paper. A guide portion 5 for changing the direction of the sheet 4 sent from a direction perpendicular to the sheet 4 in an oblique manner is formed. Reference numeral 6 denotes a fulcrum when the sheet 4 changes direction and proceeds.

Next, the operation will be described. The sheet 4 sent onto the transfer table 3 is inserted between the pair of roll cutters 1 and 1 and shredded obliquely with respect to the direction in which the characters and symbols of the sheet 4 are described.

FIG. 2 shows a second embodiment of the present invention. The feed rollers 7 and 7 a pair of feeding the sheet 4 in front of a pair of rolls cutter 1,1 is arranged, the diameter of the other end of the diameter phi ₁ of the end phi ₂
It is smaller. The sheet 4 fed between the feed rollers 7, 7 is fed obliquely between the pair of roll cutters 1, 1 and cut obliquely due to a difference in feed speed on both sides.

FIG. 3 shows a third embodiment of the present invention. Respectively rollers 9 and 10 fixed to both ends of the rod 8, 8 in place of the feed rollers 7 and 7 of the second embodiment, the diameter phi ₁ of the one end of the roller 9 smaller than the diameter phi ₂ of the roller 10 at the other end I have. The operation is the same as in the second embodiment.

FIGS. 4 and 5 show a fourth embodiment of the present invention.
Square holes 12 are formed in the transfer table 11 of the sheet 4 in the transverse direction to the traveling direction, and the rollers 13 are vertically rotated so that the upper portion slightly protrudes from the upper surface of the transfer table. The sheet 4 is turned obliquely by the rollers 13 and is sent obliquely to the pair of roll cutters 1 and 1 and cut obliquely. FIG.
Two rollers may be attached as shown in FIG.

FIG. 7 shows a fifth embodiment of the present invention. The sheet 4 with respect to the axial direction AA of the pair of roll cutters 1 and 1
Is slanted. The sheet 4 is cut into a curve such as a dotted line.

FIG. 8 shows a sixth embodiment of the present invention. A horizontal rotating disk 16 is disposed on the upper surface of the sheet transfer table 15 near the roll cutters 1 and 1. When the sheet 4 is fed between the roll cutters 1 and 1, the sheet 4 goes into an oblique direction.

FIGS. 9 and 10 show a seventh embodiment of the present invention. In this embodiment, since the shredder has a low cutting strength and the number of cut sheets is limited, this apparatus is used to cut one or two cut sheets continuously. Reference numeral 20 denotes a base, a roll guide plate 23 for guiding a roll shaft 22 of a feed roll 21 on both sides.
Are vertically projected to form a guide groove 24. 25
Is a roll shaft drive motor disposed on the base 20, and 26 is a pulley at the end of the feed roll shaft, which is connected by a belt 27. Reference numerals 28 and 29 denote paper edge alignment guide plates for aligning the outer edges 30a and 30b of the paper 30, and are inclined downward in the feeding direction and arranged in a C-shape. 31 is a pair of roll cutters.

Next, the operation will be described. The paper 30 is placed between the paper edge alignment roll guide plates 23, 23. Paper 30
The feed end 30c is directed obliquely downward and protrudes from the leading end gaps of the C-shaped paper end alignment guide plates 28 and 29. The feed roll 21 is placed on the upper end of the stacked paper 30 by its own weight. When the roll shaft drive motor 25 is operated, the paper positioned on the upper surface of the piled paper 30 is fed in the direction of the arrow by one or two paper feed rolls 21, and a pair of rolls are fed through the gap between the paper edge alignment guide plates 28 and 29. The paper is sent to the cutter 31 and cut obliquely so as to eliminate the connection between characters and symbols on the paper.

[0014]

According to the present invention, there is provided a member which obliquely displaces a sheet sent from a direction perpendicular to the rotation axis direction of a pair of roll cutters having a large number of cutting blades arranged in parallel,
Since the sheet is cut obliquely and the connection of the characters and symbols of each cutting strip is lost, the sheet is sent obliquely to a pair of roll cutters, and can be cut obliquely, so that shredding is performed. The part cannot be read because the characters and symbols are not connected, and does not lead to leakage of confidentiality.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a first embodiment of the present invention.

FIG. 2 is an external perspective view of a second embodiment of the present invention.

FIG. 3 is an external perspective view of a third embodiment of the present invention.

FIG. 4 is a plan view of a fourth embodiment of the present invention.

FIG. 5 is a sectional view taken along the line AA of FIG. 4;

FIG. 6 is a plan view using two rollers of FIGS. 4 and 5;

FIG. 7 is a plan view of a fifth embodiment of the present invention.

FIG. 8 is an external perspective view of a sixth embodiment of the present invention.

FIG. 9 is a plan view of a seventh embodiment of the present invention.

FIG. 10 is a front view of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1 Roll cutter 2, 2 Cutting blade 3 Transfer stand 4 Sheet 5 Guide part 6 Support point 7, 7 Feed roller 8 Rod body 9, 10 Roller 11 Transfer stand 12 Square hole 13 Roller 15 Transfer stand 16 Horizontal rotating disk 20 Base Reference Signs List 21 feed roll 22 feed roll shaft 23 roll guide plate 24 guide groove 25 roll shaft drive motor 28, 29 paper edge alignment guide plate 30 paper

Claims (6)

[Claims] 1. A member for displacing a sheet sent obliquely from a direction perpendicular to a rotation axis direction of a pair of roll cutters having a large number of cutting blades arranged in parallel, wherein the sheet is obliquely displaced. Sheet shredder, such as paper, which is cut into pieces to eliminate the connection between characters and symbols on each strip. 2. The guide member according to claim 1, wherein a guide member for displacing the sheet obliquely is disposed on one side of the leading end of the transfer table which is sent from a direction perpendicular to the rotation axis direction of the pair of roll cutters. Sheet shredder for paper etc. 3. A pair of rollers having different diameters at both ends for obliquely displacing a sheet fed from a direction perpendicular to the rotation axis direction of the pair of roll cutters. Sheet shredder for paper etc. 4. An upper portion of a roller which feeds a sheet obliquely by forming a hole in a transfer table of a sheet sent from a direction perpendicular to the rotation axis direction of a pair of roll cutters, and projects the sheet obliquely. The sheet shredder for paper or the like according to claim 1, which is arranged as follows. 5. The sheet shredder for paper or the like according to claim 1, wherein a pair of roll cutters provided with a large number of cutting blades are arranged obliquely with respect to the sheet feeding direction. 6. A paper sheet or the like having a large number of cutting blades.
2. The sheet shredder for paper or the like according to claim 1, wherein the flat roll is horizontally rotated in a conveying path fed between the pair of roll cutters so as to be inclined with respect to the pair of roll cutters.