JP2008068172A - Shredder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a person to feed a material to be cut into a shredder only with his hand extended from a remote position and improve safety around a throw-in slit. <P>SOLUTION: A shredder 1 cuts a material to be cut, which is fed from a throw-in slit 3 provided in the upper surface of a housing 10, with a rotary blade 12, and discharges the cut material into a trash accommodation box 20 provided below the rotary blade. In this case, an introduction surface 11 from one end part of the upper surface of the housing to the throw-in hole is formed to be a circularly curved surface. Further, the introduction surface from the one end part of the upper surface of the housing to the throw-in slit can be formed in correspondence to a paper sheet of standard size. The material to be cut placed on the upper surface of the housing slides along the circularly curved surface and smoothly introduced into the throw-in slit. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a shredder for finely cutting an object to be cut such as paper or a compact disk, and more particularly, to a shredder that can easily put the object to be cut into the shredder and reduce an accident at an inlet.

For example, Patent Document 1 discloses a technique for smoothly and easily feeding a material to be cut into a shredder insertion port.
The technique disclosed in Patent Document 1 is such that guides formed in a half-moon shape at a plurality of locations of an insertion port are arranged so as to come into contact with a staggered line on the front and back of an object to be cut, and fixed with a countersunk screw.
Registered Utility Model No. 3027219

  However, when inserting the object to be cut into the shredder disclosed in Patent Document 1, it is necessary to insert the object to be cut from directly above the input port. At this time, the cutting operator crouches right above the input port. There is a risk that an accident may occur in which the tie that is worn enters the shredder through the slot and gets caught in the rotary blade.

In addition, there is a case where it is not necessary to go to the location of the shredder to reach the shredder so that the object to be cut can be put in by extending the hand from a distant position, thereby improving the efficiency of the shredding operation.
In view of the above, an object of the present invention is to provide a shredder that can insert a material to be cut into the shredder simply by reaching out from a distant position, and can reduce accidents at the insertion port.

In order to solve the above-mentioned problems, a material to be cut is introduced from an insertion port provided on the upper surface of the housing, the material to be cut is cut with a rotary blade, and discharged to a waste storage box provided below the rotary blade. In the shredder, an introduction surface from one end portion of the upper surface of the housing to the insertion port is formed by an arcuate curved surface.
In addition, an introduction surface from one end portion of the upper surface of the housing to the insertion port may be formed corresponding to a standard paper size.

In the first aspect of the invention, since the introduction surface from one end of the upper surface of the housing to the insertion port is formed in an arcuate curved surface, the object to be cut placed on the upper surface of the housing slides down the arcuate curved surface. It will be smoothly guided to the inlet.
Accordingly, the cutting operation can be performed only by reaching out from a distant position and placing the object to be cut on one end of the upper surface of the housing.

  In the invention according to claim 2, the introduction surface from one end portion of the housing to the insertion port is formed corresponding to the standard paper size such as A4 size, B5 size, postcard size, etc. The object to be cut placed on the upper surface of the housing can be prevented from sliding down from the upper surface of the housing to the opposite side. In this case, the standard paper size corresponds to the shredder application for home use, copy paper cutting, compact disc cutting, and the like.

  A preferred embodiment of the present invention will be described with reference to the accompanying drawings. In addition, embodiment is not limited to the following forms, The other aspect is also possible if the subject of this invention can be solved.

1 is a perspective view showing a shredder 1 according to a first embodiment of the present invention, FIG. 2 is a front view, FIG. 3 is a side view, and FIG. 4 is a cross-sectional view taken along line AA in FIG. FIG.
The shredder 1 is for cutting a sheet-like object to be cut such as paper or a compact disk, and the object to be cut inserted from the insertion port 3 is cut by a rotary blade 12 provided inside the housing 10. It is discharged to the waste storage box 20. The inlet 3 is provided with a lid 30 that opens the lid 30 to expose the inlet 3 when in use, and the inlet 3 is shielded by the lid 30 when not in use. .

First, the structure of the housing 10 of the shredder 1 will be described. The housing 10 is made of a synthetic resin casing having a vertically long rectangular parallelepiped shape, and a front wall portion 15 is provided at an upper portion of the front surface, and is greatly opened from an intermediate portion to a lower end portion.
The waste collection container 20 is accommodated in the opening so as to be able to be pulled out, and a front surface portion of the housing 10 is configured by a pull-out surface 21 (extraction member) of the waste collection container (see FIG. 2).

On the upper surface of the housing 10, as shown in FIG. 5, the insertion port 3 is formed in a portion near the back surface. As shown in FIG. 6, an introduction surface 11 made of an arcuate curved surface having a constant curvature radius is formed from the front end of the upper surface of the housing 10 toward the insertion port 3.
The length L of the introduction surface 11 corresponds to the length of the long side of A4 size copy paper, and is designed to correspond to a fan-shaped arc having a radius of curvature of about 20 cm and a center angle of about 90 degrees. ing.

  That is, the introduction surface 11 is formed in a curved state such that the tangent of the curved surface gradually increases in inclination from the horizontal direction and is substantially downward in the vertical direction in the vicinity of the inlet, thereby cutting the front surface end of the housing upper surface. By simply placing an object, the object to be cut slides down the introduction surface 11 and can be smoothly introduced into the insertion port 3. Further, since the length L of the introduction surface 11 is adjusted to the standard paper size, it is possible to prevent the object to be cut placed on the end portion of the upper surface of the housing from falling to the side opposite to the insertion port 3. .

  The rear wall surface 13 is disposed opposite to the lower end portion of the introduction surface 11 with a slit-like interval of about 2 mm to 10 mm in width. The rear wall surface 13 is continuous from the upper surface of the housing 10 and is suspended toward the inside of the housing 10. The inlet 3 of the shredder 1 of this embodiment is formed with the slit-like gap at the lower end.

  A pair of rotary blades 12 for performing a cutting action is disposed below the insertion port 3 configured as described above. The rotary blade 12 is provided with a number of sharp cutting blades on the peripheral surface of the cylindrical body, and the two cylindrical bodies are arranged in parallel horizontally so that the cutting blades face each other. A frame provided inside the housing 10 is rotatably supported.

A sensor (not shown) is attached above the rotary blade 12 (for example, a predetermined part of the introduction surface 11), and when the sensor detects the passage of the object to be cut, a drive motor (not shown) operates. The rotary blade 12 is configured to rotate.
A drive motor for rotating the rotary blade 12 is connected to a power supply circuit that is closed by turning on a power switch (not shown) provided in the housing 10.

A series of devices for driving the rotary blade 12 is protected by the front wall portion 15 that appears when the waste collection box 20 is pulled forward.
Below the rotary blade 12, a waste collection box 20 is housed so that it can be pulled out. In this case, a waste inlet 22 is opened below the rotary blade 12, and the cut waste after being cut by the rotary blade 12 is received and collected in the waste collection box 20.

When the waste collection box 20 is full of cutting waste, the drawer surface 21 is pulled forward, and the cutting waste in the waste collection box 20 can be discharged.
A locked portion 23 that engages with a lock portion 32 provided on a lid 30 described later is provided at a predetermined position on the upper surface of the drawer surface 21. As shown in FIG. 7, the locked portion 23 is engaged with the lock portion 32 when the lid 30 is shielded, and fixes the waste collection container 20 that is housed in the housing 10.

In a state where the waste collection box 20 is accommodated in the housing 10, the outer surface of the shredder is constituted by the drawer surface 21 and the housing 10.
On the upper surface of the housing 10 of the shredder, a lid 30 that covers the inlet 3 is rotatably attached.

The lid 30 is pivotally supported by a pivotal support shaft 31 provided at the rear edge of the upper surface of the housing 10, and collects debris at a lock portion 32 provided inside the edge hanging from the front end. The lock portion 23 of the drawer surface 21 of the box 20 can be engaged.
That is, when the shredder is not used, the insertion port 3 is shielded by the lid 30 and the waste collection box 20 is accommodated in the housing 10 and cannot be pulled out. In this case, the engaging protrusion of the lock portion 32 is urged by a spring incorporated therein, and is engaged with the locked portion 23 by elastic deformation of the spring by being housed in the recessed portion of the locked portion 23. become. Thus, when the lid 30 is closed, it can be automatically locked.

When performing the cutting operation by the shredder 1, the lid 30 is opened and the insertion port 3 is exposed by performing an unlocking operation (for example, pressing the edge of the lid 30).
In this case, the shredder 1 may be turned on by an unlocking operation.

The usage method of the shredder 1 of the said structure is demonstrated.
When the shredder 1 is not used, the drawer surface 21 of the waste collection box 20 appears on the front surface of the vertically long rectangular parallelepiped housing 10 and the upper surface is shielded by the lid 30. At this time, the waste collection box 20 is accommodated in the housing 10 and is locked in a state where the insertion port 3 is shielded.

In use, the lid 30 is opened to expose the insertion port 3, and the object to be cut is placed on the front end of the upper surface of the housing 10. Then, the object to be cut slides down the arc-shaped introduction surface 11 and reaches the insertion port 3. The workpiece to be cut inserted into the housing 10 from the inlet 3 reaches the rotary blade 12. At this time, the sensor detects the passage of the workpiece and the rotary blade 12 is in a rotating state. When the object to be cut passes between the rotating blades 12 in the rotating state, the object to be cut is finely cut while being wound around the rotary blade 12.

During the cutting operation, when the waste collection box 20 is full of waste, the waste collection box is taken out by pulling the drawer surface 21 of the waste collection box 20 forward with the lid 30 opened. be able to.
As described above, the lid 30 is opened only when the cutting operation and the waste collection box take-out operation are performed. In other cases, the lid 30 and the waste collection box 20 are shielded together, and the shielding state is fixed by the lock portion. Therefore, even if an infant tries to pull out the waste collection box 20 by mischief, it cannot be pulled out. As a result, the cutting waste in the waste collection box 20 is not scattered around, and there is no possibility of coming into contact with the rotary blade 12 in the housing 10 from the space after the waste collection box 20 is pulled out.

In addition, since the introduction surface 11 toward the insertion port 3 of the shredder 1 is formed corresponding to the standard paper size and is formed with an arcuate curved surface, the material to be cut from the front end portion of the shredder 1. The cutting work can be performed simply by sliding in. For this reason, the operator can also insert the object to be cut from a remote position by reaching out.
This eliminates the need to insert the object to be cut from the position directly above the insertion port 3, so that the tie worn by the cutting operator is inserted into the shredder from the input port 3. It is also possible to prevent accidents such as entering and getting caught in the rotary blade 12.

  In the present embodiment, the lid 30 that covers the insertion port 3 is one that is rotatably attached to the housing 10. However, as shown in FIG. 8, a sliding lid 30 ′ may be used. . In this case, a lock portion 32 ′ that can be engaged with the take-out surface of the waste collection box 20 is provided at the end of the lid 30 ′ in the sliding direction. The lock portion 32 ′ can be fixed to the locked portion 23 ′ by, for example, a magnet attracting force.

  Further, in the present embodiment, the waste collection box 20 can be taken out of the housing 10 as it is by pulling the drawer surface 21 on the front surface of the waste collection box 20 forward. However, as shown in FIG. A door 24 may be provided, and the waste collection box 20 may be removed by opening the door 24. In this case, the locked portion 23 ″ is provided on the door 24.

In the present embodiment, the length L of the introduction surface 11 is set to a length corresponding to the long side of the A4 size copy paper, but can be set to an appropriate length according to the size of the shredder and the purpose of use. .
Further, the curvature of the arc may be a curved surface that gradually increases in inclination from the horizontal direction and descends, and may be an elliptical arc curved surface or a parabolic curved surface.

  A shredder according to a second embodiment of the present invention will be described with reference to FIG. The front view of this shredder is FIG. 11, the side view is FIG. 12, the plan view is FIG. 13, the bottom view is FIG. 14, and the cross-sectional view is FIG. In the rear view, the housing 10 appears. However, since the case 10 is the same as FIG. The left side view is the same as the right side view.

This shredder is different from the shredder of the first embodiment only in that the inlet 3 is not provided with a lid and the arcuate introduction surface 11 is exposed on the upper surface of the housing 10. That is, since the structure of the housing 10 and the waste collection box 20 is the same as that of the first embodiment, the same reference numerals are given and description thereof is omitted.
In this example, the safety when the shredder is not used is lower than that of the first embodiment, but the workability is remarkably improved and the appearance design is good.

  The present invention can be used for commercial and household shredders.

It is a perspective view which shows the shredder which concerns on 1st Embodiment of this invention. It is a front view of the said shredder. It is a side view of the said shredder. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. It is a top view which shows the state which open | released the cover of the said shredder vertically. It is sectional drawing which shows the state which accommodated the waste collection box in the housing in FIG. It is sectional drawing which shows the state which closed the cover in FIG. It is a perspective view which shows the 1st modification of this embodiment. It is a perspective view which shows the 2nd modification of this embodiment. It is a perspective view which shows the shredder which concerns on 2nd Embodiment of this invention. It is a front view of the said shredder. It is a side view of the said shredder. It is a top view of the said shredder. It is a bottom view of the shredder. It is sectional drawing of the said shredder.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,100 ... Shredder 3 ... Slot 10 ... Housing 11 ... Introduction surface 12 ... Rotary blade 13 ... Rear wall surface 15 ... Front wall part 20 ... Waste container 20 ... Lid 21 ... Drawer surface (extraction member)
22 ... Waste input port 24 ... Door (extraction member)
23, 23 '... Locked part 30, 30' ... Lid 31 ... Rotating spindle 32, 32 '... Lock part

Claims (2)

Waste to be cut is inserted from an insertion port (3) provided on the upper surface of the housing (10), the cut object is cut with a rotary blade (12), and scraps are provided below the rotary blade (12). In the shredder (1) for discharging into the storage box (20),
A shredder characterized in that an introduction surface (11) extending from one end portion of the upper surface of the housing (10) to the charging port (3) is formed by an arcuate curved surface. The shredder according to claim 1, wherein an introduction surface (11) extending from one end portion of the upper surface of the housing to the insertion port (3) is formed so as to correspond to a standard paper size.

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