KR101577357B1 - Noise Reduction Device of Document Shredder - Google Patents

Abstract

The present invention relates to a noise reducing apparatus for a document separator, comprising: a body formed with an inlet for forming an outer shape and into which paper is input; a crushing unit installed inside the body and connected to the inlet so as to cut the paper into predetermined lengths and lengths; And a pressurizing device provided at the inlet and pressurizing the side surface of the crushing object to be charged into the inlet so as to correspond to the crushing blade is provided and supplied to the crushing section The noise due to the deformation of the paper can be reduced and the noise caused by the crushing of the paper when the paper is in contact with the crushing blade can be reduced and the noise caused by the contact of the paper with the main body can be reduced, It is possible to reduce the noise caused by the contact between the blade and the paper.

Description

{Noise Reduction Device of Document Shredder}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a noise reduction device for a document separator, and more particularly, to a noise reduction device capable of reducing noise generated when a document, paper, or the like is broken by a document separator.

Generally, a cash dispenser cuts a security document or a confidential document, a company document in which personal information is written, a receipt of a financial institution into a piece, and is used in various places such as a government agency, a government office, a corporation, and a financial institution.

In addition, the shredder is provided in offices, banks, etc. of each institution in order to prevent and protect the leakage of the personal information described in the confidential documents of government agencies, government offices and enterprises, and statements issued through ATM machines at financial institutions.

Such a document shredder allows people to simply place paper in the loading slot to make the document cooler and the heated document to be unreadable.

Such a crushing unit includes a motor and a cutter for a document fuselage, and the cutter for a document fuselage is rotated by the rotational force of the motor to finely crush the inputted document.

Therefore, when the document is input, the motor is driven in response to the input of the document, and the document is finely chopped by rotating the cutter for the document by the rotational force of the motor.

Usually, the document detection sensor installed at the document input port of the document separator uses a light detection sensor. The light detecting sensor includes a pair of light emitting units and a light receiving unit, and irradiates the light receiving unit with the light generated from the light emitting unit, and detects that the obstacle such as a document blocks the light on the light path.

For example, in the following patent document 1, a "sedan" is disclosed.

The shredder according to Patent Document 1 described below has a sediment section for sedimenting a document; And a vertical type motor fixing bracket for fixing the motor perpendicularly to the three-dimensional end portion, the bracket including a fixing surface through which the shaft of the motor penetrates and which is fixed to the motor and a fixing surface extending from the fixing surface, And an auxiliary bracket which is spaced apart from the fixing surface and faces the fixing surface, wherein the auxiliary bracket is provided with a separate supporting portion, A bearing support portion is disclosed.

The following Patent Document 2 discloses an apparatus and method for noise reduction of a document sedan.

A noise reducing apparatus for a document separator according to the following Patent Document 2 includes a main body in which an inlet port through which a document is inserted is formed by forming an external shape, a main body installed inside the main body and connected to the inlet port, And a control unit for controlling the cutting condition of the sediment according to the detection result of the sensing unit, wherein the sensing unit senses the noise during sedimentation of the sediment, Wherein the third end includes a driving motor for generating a driving force, a first rotating shaft and a second rotating shaft arranged in parallel to each other, a plurality of cutters continuously assembled to intersect the first rotating shaft and the second rotating shaft, A drive gear provided at the other end of the first rotation shaft, and a drive gear provided at one end of the second rotation shaft so as to be engaged with the drive gear And a rotary gear which is provided at one end of the first rotary shaft and rotatably receives a driving force generated by the driving motor, wherein the first and second rotary shafts have a hexagonal cross section, and the first rotary shaft An interval plate capable of maintaining a gap between each of the cutters so that the assembled cutter and the cutter assembled to the second rotation shaft can cross each other is disclosed.

Korean Patent Publication No. 10-2009-0127653 (published on December 14, 2009) Korean Patent Publication No. 10-1502747 (registered on March 10, 2015)

However, according to the related art, the paper cutter is moved to the third cutter through the input port formed on the upper surface of the cutter, so that the paper is crushed while the inserted paper is splashed between the two cutter blades and the paper is crushed, The paper is put into the crushing blade, and noise is generated due to contact with the paper separator.

An object of the present invention is to provide a noise reducing apparatus for a document separator which can reduce noise by injecting paper to be fed into a paper separator in a form of being pinched by a crushing blade.

Another object of the present invention is to provide a noise reducing apparatus for a document separator which can feed paper to be fed into a document separator in a shape corresponding to a crushing blade engaged with each other.

In order to achieve the above object, a noise reducing apparatus of a document separator according to the present invention comprises a main body having an inlet formed with an outer shape and into which paper is inserted, a main body disposed inside the main body, And a collection container for temporarily collecting the sedan sediments, wherein the side of the object to be crushed, which is installed at the inlet, corresponds to the crushing blade And a pressurizing device for pressurizing is installed.

The pressing means includes a supporting base formed on a side surface of the charging opening, a pressing plate movably installed away from the supporting base, and an elastic body provided between the supporting base and the pressing plate to move the pressing plate.

The injection port is composed of a lower insertion surface formed with the paper supported thereon and an upper insertion surface formed on the upper side of the lower insertion surface and spaced apart from the upper insertion surface by a predetermined distance and protruding toward the lower insertion surface .

As described above, according to the noise reducing apparatus for a document separator according to the present invention, by supplying the paper supplied to the crushing unit in a manner corresponding to the crushing blade, it is possible to reduce the noise due to the shape deformation of the paper, It is possible to reduce the noise caused by the distortion of the paper and to reduce the noise caused by the contact of the paper with the main body and the noise caused by the contact between the crushing blade and the paper.

1 is a cross-sectional view of a noise reducing apparatus of a document separator according to a preferred embodiment of the present invention,
2 is an exploded perspective view showing a pressing means provided in a noise reducing device of a document separator according to a preferred embodiment of the present invention,
3 is a bottom front view showing a pressing means installed in a noise reducing device of a document separator according to a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a noise reducing apparatus for a document separator according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of a noise reducing apparatus of a document separator according to a preferred embodiment of the present invention.

A noise reducing apparatus for a document separator according to a preferred embodiment of the present invention includes a main body 10 having an inlet 11 through which a paper is inserted and forming an outer shape, A crushing unit 20 for cutting the paper into predetermined lengths and lengths, and a collection container 30 provided at the bottom of the crushing unit 20 and temporarily collecting the sedan sediments.

And a pressing device 40 installed in the inlet 11 and pressing the side of the object to be crushed into the inlet so as to correspond to the crushing blade 22 may be installed. The pressurizing device 40 is provided on both sides of the inlet 11 and presses both sides of the object such as paper so that the object to be crushed is supplied in a waveform (or S shape) corresponding to the crushing blade 22 Thereby reducing the noise generated during the crushing.

The pressure device of the present invention is produced by bending or curving the paper to be crushed to correspond to the crushing blade 22 so that the noise or paper generated when the paper hits the main body 10 is caught by the crushing blade 22 Thereby reducing noise.

As shown in FIG. 1, the apparatus for reducing noise in a document separator according to the embodiment of the present invention may be provided with a main body 10 having an outer shape of a predetermined size, and a crushing object such as paper is put on the top surface of the main body 10 (Not shown).

The input port 11 is formed to be able to input a crushing object such as paper and the input port 11 can be formed on an upper surface of the main body 10.

A crushing unit 20 driven by a driving motor 21 may be installed in the main body 10. The crushing unit 20 may be provided with a crushing blade 22 driven by a driving motor 21. The driving motor 21 rotates a pair of crushing blades 22, And finely crushed.

A driving gear 23 may be installed in one of the shredding blades 22 and a driven gear 24 may be installed in the other of the shredding blades 22. have.

The drive gear 23 and the driven gear 24 are meshed with each other and the drive motor 21 and the drive gear 23 can be coupled by a power transmission means such as a chain or a belt.

FIG. 2 is an exploded perspective view showing a pressing means installed in a noise reducing device of a document separator according to a preferred embodiment of the present invention, and FIG. 3 is a perspective view of a pressurizing device installed in a noise reducing device of a document separator according to a preferred embodiment of the present invention. Fig.

2 and 3, the pressurizing means 40 can be installed in the charging port 11, and the charging port 11 has a lower charging surface 12 and a lower charging surface 12, (13) on the upper side of the upper surface (12).

 The lower insertion surface 12 may be provided with a pressing means 40 which can press both sides of the paper. The pressing means 40 includes a support 41 formed on both sides of the inlet 11, a pressure plate 42 movably installed at a position spaced apart from the support 41 by a predetermined length, And an elastic body 43 elastically installed to be moved to the center of the inlet 11.

The supporting member 41 may be formed on both sides of the charging port 11 or may use a protruding portion of the main body 10. [

The support plate 41 may be provided with a pressure plate 42 movably disposed at a predetermined distance from the support plate 41. The pressure plate 42 may be elastically installed by an elastic body 43 so as to press the object to be crushed .

In addition, a plurality of protrusions 44 may be formed on the upper insertion surface 13 of the inlet 11 so as to be inserted into a curved shape such as a waveform or 'S' shape.

The protrusions 44 are formed to protrude toward the lower insertion surface 12.

The following is a detailed description of the coupling relationship of the noise reducing apparatus of the document separator according to the preferred embodiment of the present invention.

1 to 3, a noise reduction apparatus for a document separator according to an embodiment of the present invention includes a main body 10 having an outer shape of a predetermined size, and an inlet 11 is formed on an upper surface of the main body 10, . The input port 11 forms a lower input surface 12 on which a paper to be crushed and a top input surface 13 corresponding to the lower input surface 12 are formed.

A shredding blade 22 for shredding the paper while being rotated by a drive motor 21 is provided in the main body 10 and a drive gear 23 and a driven gear 24 are provided at one side of the shredding blade 22 Install it. The drive motor 21 and the drive gear 23 are coupled by a power transmission means such as a belt or a chain.

Inside the main body (10), a collection container (30) capable of receiving the broken sediment in the crushing part (20) is installed.

A pressing means (40) is provided in the inlet (11) so that the paper to be fed into the crushing blade (22) corresponds to the crushing blade (22). The pressing means 40 is formed on both side surfaces of the lower insertion surface 12 and the pressing plate 42 is movably installed on one side of the supporting table 41. The pressure plate (42) is elastically installed toward the middle of the charging port (11).

In other words, an elastic body 43 having elasticity for moving the pressing plate 42 is provided between the supporting table 41 and the pressing plate 42.

In addition, a plurality of protrusions 44 are formed on the upper insertion surface 13 of the inlet 11 at regular intervals so as to make the paper more curved.

1 to 3, an operation method of a noise reducing apparatus for a document separator according to a preferred embodiment of the present invention will be described in detail.

The noise reducing apparatus of the document sedan according to the embodiment of the present invention inserts the paper to be crushed into the input port 11 for crushing.

At this time, since the pressing means 40 provided on the lower insertion surface is moved toward the middle of the loading port 11 by the elastic body 43, the user pushes the pressing plate 42 toward the support base 41 to move the paper, .

Illustratively, when the A4 paper is to be crushed, the pressure plate 42 can maintain a narrower interval than the width of the paper. That is, the spacing distance of the pressure plate 42 may be approximately 150 to 200 mm, and the separation distance of the pressure plate 42 may be varied according to need.

As described above, the width of the sheet fed into the gap between the pressure plates 42 is narrowed by the pressure plate 42 and deformed into an arc shape having a constant length between the pressure plates 42 as shown in FIG.

As shown in Fig. 3, the paper is curved into a plurality of arc shapes, and the curved paper is also curved by the projections 44 of the upper insertion surface 13. That is, the shape of the paper is deformed such that the arc having a large radius and the arc having a small radius overlap each other.

This is because the shape of the paper to be input at the input port 11 is formed to be corrugated so that the noise generated when the paper collides with the main body 10 due to the deformation of the paper by the shredding blade 22, The noise generated by the deformation is reduced.

That is, the paper is preliminarily wrinkled or wrinkled in a crumpled form so that the paper is put in a pre-deformed form by the main body 10 or the shredding blade 22. Accordingly, it is possible to reduce the noise generated when the paper is crushed.

The crushed paper is crushed by the crushing blade 22 while the crushed paper is moved toward the crushing blade 22 by the pressing means 40.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

10: Body 11:
12: Lower insertion surface 13: Upper insertion surface
20: crushing section 21: drive motor
22: crushing blade 23: drive gear
24: driven gear 30: collection container
40: pressing means 41:
42: pressure plate 43: elastic body
44: projection

Claims (3)

A body formed with an inlet for forming an outer shape and into which paper is inserted,
A crushing unit installed inside the main body and connected to the inlet so as to cut the paper into predetermined lengths and lengths,
And a collection container provided at a lower portion of the crushing section and temporarily collecting the sediment sediment,
A pressing device installed at the loading port for pressing the side of the crushing object to be charged into the loading port so as to correspond to the crushing blade,
Wherein the pressure device includes a support formed on a side surface of the inlet, a pressure plate movable away from the support, and an elastic body disposed between the support and the pressure plate to move the pressure plate. Device. delete The method according to claim 1,
Wherein the charging port comprises a lower charging surface formed to support the paper and an upper charging surface formed on the upper charging surface,
Wherein the upper throwing surface is spaced apart from the upper throwing surface by a predetermined distance, and protrusions are formed so as to protrude toward the lower throwing surface.

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