JP2008062142A - Shredder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a very safe shredder which effectively prevents a person from inserting his finger into a throw-in slit. <P>SOLUTION: The shredder 1 cuts a material to be cut, which is thrown in from a throw-in slit 3, with a rotary blade 12 and discharges the cut material into a trash accommodation box 7. In this case, the thrown-in slit is composed of a guidance wall 10, which guides the material to be cut to the rotary blade, and a fixed wall 11 which is arranged opposite to the guidance wall at a prescribed interval M, and an elastic member 4 is protruded on the surface of the fixed wall in a state in which a distance L from the front end part to a guidance surface is kept to be narrower than the thickness of a child's finger. When a child's finger is going to be drawn into the inner part of the shredder in a state in which the finger contacts the material to be cut, the elastic member can detach the finger from the material to be cut. <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 prevent an injury caused by putting a finger or the like into an input port of the object to be cut.

For example, Patent Document 1 discloses a technique for preventing the occurrence of injury due to an accidental insertion of a finger into a shredder insertion slot.
The technique disclosed in Patent Document 1 is provided with a proximity sensor that detects the presence of a person or an animal in the vicinity of an input port in order to detect an undesirable object such as a human finger entering the input port of the shredder. That's it.
JP-A-2005-95898

However, the technique disclosed in Patent Document 1 requires a proximity sensor that can distinguish and detect an undesirable object such as a person or an animal and an object to be cut, and depending on the position of the sensor, There is a risk that it will also react to the operator's hand when inserting the object to be cut, which may hinder the cutting work.

In particular, in a shredder configured to automatically rotate the rotary blade at the same time as the object to be cut is inserted, a separate sensor is required to detect the insertion of the object to be cut. In addition to being complicated, it is difficult to adjust the mounting position. For this reason, since manufacturing cost increases and a product price becomes high, it is difficult to spread as a shredder for home use.
Therefore, an object of the present invention is to provide a highly safe shredder that can effectively prevent insertion of a finger or the like into a slot while having a simple structure.

  In order to solve the above-mentioned problems, the present invention provides a shredder that cuts an object to be cut inserted from an input port with a rotary blade and discharges it into a waste storage box. The guide wall includes a guide wall and a fixed wall disposed opposite to the guide wall at a predetermined interval. An elastic member is provided on the wall surface of the fixed wall, and a distance from the distal end portion to the guide surface is set by the infant. It is characterized in that the projection is provided while being kept narrower than the thickness of the finger.

In this case, the predetermined interval may be set larger than the thickness of an adult finger.
Further, the elastic member may be a brush-like member raised in a vertical direction from the fixed wall.

  As in the case of the shredder according to the present invention, the object to be cut inserted from the insertion port is cut with the rotary blade and discharged into the waste storage box, and the tip of the object to be cut reaches the rotary blade. By being caught in the rotary blade, the workpiece to be continuously fed so as to come into contact with the workpiece is drawn into the shredder together with the workpiece already wound on the rotary blade, and sequentially cut smoothly. It has come to go.

  In such a shredder, in the invention according to claim 1, the insertion port is constituted by a guide wall that guides the object to be cut to the rotary blade, and a fixed wall that is opposed to the guide wall at a predetermined interval. Since an elastic member is projected on the wall of the fixed wall, if something that should not be cut, such as an operator's finger or tie, is about to be pulled into the shredder together with the object to be cut, it will protrude into the fixed wall. By the provided elastic member, the material that should not be cut can be separated from the cut object being drawn into the shredder.

In particular, by setting the distance between the tip of the elastic member and the guide surface to be smaller than the thickness of the infant's finger, the finger is in contact with the object to be cut during the cutting operation, and the inside of the shredder together with the object to be cut. Even when the finger is about to be pulled in, the finger is brought into contact with the elastic member so that the contact state between the finger and the object to be cut can be released, thereby preventing the finger from being pulled into the shredder. it can.
On the other hand, since what is to be cut (for example, the staple of a stapler) fixed to the object to be cut is allowed to pass by elastic deformation of the elastic member, the cutting work may not be hindered. Absent.

As a result, while ensuring a smooth cutting operation, it is possible to prevent an operator's finger or an infant's finger caused by mischief from reaching the rotary blade together with the object to be cut. Occurrence can be prevented.
In the present invention, the “finger's finger thickness” is designed in consideration of the finger size of a child about 1 year old.

  In the invention according to claim 2, since the interval between the guide wall and the fixed wall is set larger than the thickness of the adult finger, when the finger is about to be pulled into the shredder, it can be easily removed from the insertion port. You can pull your finger out.

  In the invention which concerns on Claim 3, since the elastic member was comprised with the brush member raised in a perpendicular direction from a fixed wall, a contact state with a to-be-cut object can be cancelled | released effectively with a brush tip. In addition, since the object fixed to the object to be cut (that is, the object to be cut) can pass smoothly due to the elastic deformation of the brush tip, a smoother cutting operation can be performed.

  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, Other aspects are possible if the subject of this invention can be solved.

FIG. 1 is a perspective view showing a shredder according to an embodiment of the present invention.
The shredder 1 is for cutting a sheet-like object to be cut such as paper or a compact disk. As shown in FIG. 2, the shredder 1 is provided with an insertion port 3 on the upper surface of the housing 5 and has a cutting part 6 for cutting inside. And the waste collection box 7 is accommodated in the lower part of the cutting part 6.

A housing 5 of the shredder 1 is made of a synthetic resin casing having a vertically long rectangular parallelepiped shape, and a door 8 is rotatably attached to the front surface. When the door 8 is opened, the waste collection box 7 is accommodated in the lower part of the cutting part 6 formed in the upper part of the housing so as to be drawn forward.
On the upper surface of the housing, an introduction surface 9 that forms a smooth curved surface from the front side of the housing 5 toward the center is formed. A guide wall 10 curved in a funnel shape is formed continuously with the introduction surface 9. A fixed wall 11 that hangs down from the upper surface of the housing is formed on the back side of the guide wall 10.

A slit-shaped opening is formed between the guide wall 10 and the fixed wall 11, and the shredder inlet 3 is formed with the opening.
The guide wall 10 on the front side of the housing is a wall for guiding the object to be cut placed on the introduction surface 9 to the rotary blades 12 and 12 described later, and smooth movement of the object to be cut is ensured. Thus, you may provide rotating members, such as a roller, in the middle of a movement path.

The fixed wall 11 on the rear side of the housing is a wall for restricting the moving path of the object to be cut, and is disposed to face the guide wall 10 with a predetermined interval. In this case, the distance M between the guide wall 10 and the fixed wall 11 is preferably a width (for example, about 10 mm to 20 mm) larger than the thickness N of the adult finger shown in FIG. 3, and is set to 15 mm in this embodiment. Has been.
A brush-like elastic member 4 is attached to the wall surface of the fixed wall 11. The elastic member 4 protrudes in the vertical direction from the wall surface, and the distance L between the distal end portion and the guide wall 10 is set to be narrower than the thickness of the infant's finger. The distance L is about 0.5 mm to 5 mm, preferably about 1 mm to 3 mm, and is set to 2 mm in this embodiment.

  A pair of rotary blades 12 and 12 for performing a cutting action are disposed below the insertion port 3 configured as described above. The rotary blades 12 and 12 are 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. This part is rotatably supported by frames provided on both side surfaces of the housing 5.

A sensor 13 is mounted above the rotary blades 12 and 12 (for example, the guide wall 10). When the sensor 13 detects the passage of the object to be cut, a drive motor (not shown) is operated to rotate. The blades 12 and 12 are configured to rotate.
The drive motor for rotating the rotary blades 12, 12 is connected to a power supply circuit that is closed by turning on a power switch 14 provided on the upper surface of the housing 5.

The cutting part 6 is constituted by a series of devices for driving the rotary blades 12, 12, such as the rotary blades 12, 12, the drive motor, the sensor 13, and the power circuit, and the cutting part 6 is a door of the housing 5. Cutting operation is performed by a front wall surface that appears when the door 8 is opened, and a shutter 15 that shields between the cutting portion 6 and the waste collection box 7 when the door 8 of the housing 5 is opened and the waste collection box 7 is pulled out. It is protected so that the person cannot touch it directly.

A guide member 16 is formed at the upper end of the door 8 on the front side of the housing. This guide member 16 is for facilitating the insertion of the object to be cut from a distant position, and is inclined about 20 to 40 degrees and attached obliquely upward.

The usage method of the shredder 1 of the said structure is demonstrated.
When performing the cutting operation, the object to be cut is placed on the introduction surface 9 or the guide member 16. Then, the object to be cut slides down the funnel-shaped curved surface from the introduction surface 9 toward the guide wall 10. At this time, the passage of the object to be cut is detected by the sensor 13, and the rotary blades 12, 12 provided below the insertion port 3 are driven. Then, when the object to be cut passes between the rotary blades 12 and 12 in the rotating state, the object to be cut is finely cut while being wound around the rotary blades 12 and 12.

At this time, if an object to be cut that passes through the introduction surface 9 or the guide wall 10 is attached to an object to be cut such as a finger or a tie of a cutting operator, a brush-like shape provided on the fixed wall 11 is used. The elastic member 4 can peel the deposit from the moving cut object. As a result, the contact with the object to be cut that is drawn into the shredder while being wound around the rotary blades 12 and 12 is cut off, so that things that should not be cut such as fingers and ties are shredded together with the cut object. It is possible to prevent a situation such as being drawn inside.

  Further, since the interval M between the fixed wall 11 to which the elastic member 4 is attached and the guide surface 10 on which the object to be cut moves in contact is set to be larger than the thickness of the adult finger, the object to be cut is cut. A finger, a tie or the like whose contact with an object is cut off can be easily pulled out from the insertion port 3.

If the distance L between the distal end portion of the elastic member 4 and the guide wall 10 is designed to be a width corresponding to the cutting ability of the rotary blades 12, 12, the object to be cut will be fed beyond the number of pieces that can be cut. In such a case, it is possible to separate the excess of the cut object being moved.
As a result, the object to be cut can be fed into the rotary blades 12 and 12 by an appropriate amount, so that the object to be cut is caught in the rotary blades 12 and 12 and the rotary blades 12 and 12 are stopped. can do. Further, it is possible to prevent the rotary blades 12 and 12 from being damaged by the object to be cut being bitten by the rotary blades 12 and 12.

Even if the infant puts his / her hand on the moving object to be cut during the cutting operation and the hand is about to be pulled into the insertion port 3 together with the object to be cut, the leading end portion of the elastic member 4 and the guide surface 10. Is smaller than the thickness of the infant's finger, the infant's hand can be separated from the moving object to be cut.
As a result, it is possible to effectively prevent the finger from being caught in the rotary blades 12 and 12, so that the possibility of a major accident such as finger cutting is reduced.

In this embodiment, a brush-like elastic member is used. However, as shown in FIG. 4, it may be a spatula-like rubber member arranged in a direction orthogonal to the moving direction, or a sponge-like member. It may be a member.
Further, the distance M between the guide wall 10 and the fixed wall 11 may be smaller than the thickness N of the adult finger.
Further, the inlet 3 of the shredder 1 may be provided on the side surface of the housing or the like.

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

It is a perspective view which shows the shredder which concerns on embodiment of this invention. It is a schematic sectional drawing which shows the state which cut | disconnected the front center part of the said shredder with the plane parallel to a side surface. It is explanatory drawing which shows the thickness of a finger | toe. It is a perspective view which shows the modification of the elastic member of the said shredder.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Shredder 3 ... Loading port 4 ... Elastic member 5 ... Housing 6 ... Cutting part 7 ... Waste collection box 8 ... Door 9 ... Introduction surface 10 ... Guide wall 11 ... fixed wall 12 ... rotary blade 13 ... sensor 14 ... power switch 15 ... shutter 16 ... guide member

Claims (3)

In the shredder (1) for cutting the object to be cut inserted from the inlet (3) with the rotary blade (12, 12) and discharging it to the waste storage box (7),
The insertion port (3) is disposed to face the guide wall (10) for guiding the object to be cut to the rotary blades (12, 12) and the guide wall (10) with a predetermined interval (M). A fixed wall (11),
The elastic member (4) is projected on the wall surface of the fixed wall (11) with the distance (L) from the tip to the guide surface (10) kept smaller than the thickness of the infant's finger. Shredder characterized by.   The shredder according to claim 1, wherein the predetermined interval (M) is set larger than a thickness of an adult finger. The shredder according to claim 1 or 2, wherein the elastic member (4) is a brush-like member raised in a vertical direction from the fixed wall (11).

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