JPH09103699A - Shredder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure safety for a rotary edge even in the state wherein a chopper main body is separated from a trash box by a method wherein when the chopper main body is fitted to the trash box, an opening and closing cover is thrusted up at its rear part by a projection, and pivots in an open direction of a discharge opening. SOLUTION: An opening and closing cover 9 is fitted to a discharge opening 3 of a chopper main body 4 so as to pivot in front and in rear via a cross shaft 8 in coaxial direction with a rotary edge 1. By fitting a spring to the cross shaft 8, the opening and closing cover 9 is urged in a direction of closing the discharge opening 3. Further, an upward projection 11 opposed to a rear part 9a of the opening and closing cover 9 is formed to an opening part 6 in the trash box 5. Under a state wherein the chopper main body 4 is placed on the trash box 5, the rear part 9a of the opening and closing cover 9 is thrust upward against spring force of the cross shaft 8 and a weight of the rear part 9a by the projection 11, the opening and closing cover 9 pivots, and the discharge opening 3 is opened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shredder in which a shredder body and a waste box are detachable, and more specifically, a shredder for ensuring the safety of a user with respect to a rotary blade incorporated in the shredder body. It is about structure.

[0002]

2. Description of the Related Art Generally, a shredder is composed of a shredder body having a rotary blade built-in and a waste box for storing shredded waste under the shredder for the purpose of shredding unnecessary documents. It is a thing. In recent years, such shredders have
With the miniaturization of the device, it was placed on the desk side, and it became possible to immediately shred unnecessary documents while performing desk processing. Therefore, there is a shredder that can dispose of not only shredded waste, but also general dust generated during desk processing, in the waste box attached under the main body of the shredder. Specifically, two shredders are provided in the shredder body,
As shown in FIG. 4, the shredder main body 51 is arranged close to one side of the waste box 52, and the opening of the waste box 52 at this time is used as a general waste input port 53.

[0003]

By the way, since the shredder has a structure in which the paper is shredded by the rotary blade, the safety to the human body must be sufficiently ensured. In other words, it is dangerous for your fingers to touch the rotary blade directly,
Inadvertent entry of fingers into the shredder body, whether operating or stopped, must be avoided.

However, in the conventional shredder shown in FIG. 4, since the general dust input port 53 is wide open, the user can easily put his / her hand from here. Therefore,
For example, when the operator puts his / her hand through the insertion port 53, such as when trying to take out a paper jammed in the rotary blade 54, it is dangerous because the bare rotary blade 54 can reach.

When the waste box 52 is filled with shredder waste, it is necessary to remove the shredder body 51 from the waste box 52. However, when the shredder body 51 is lifted or placed elsewhere. There is also a problem in that the shreds attached to the rotary blade 54 fall from the discharge port 55 and stain the surroundings due to the vibration.

The object of the present invention is to solve the above problems and, of course, in a normal use state in which the shredder body and the waste box are assembled,
It is to provide a shredder that can ensure the safety of the user with respect to the rotary blade even when the both are separated.

[0007]

In order to achieve the above-mentioned object, in the present invention, a shredder in which a waste paper inlet is formed on the upper surface and a shredder waste outlet is formed on the lower surface through a built-in rotary blade. In a shredder equipped with a machine body and a waste box detachably attached to the lower side of the machine body, an opening / closing cover that rotates back and forth via a horizontal shaft coaxial with the rotary blade is provided at the discharge port in the closing direction of the discharge port. The waste box is provided with an upward protrusion facing the rear portion of the opening / closing cover, and when the shredder body is attached to the waste box, the opening / closing cover is The rear portion is pushed up by the projection and is rotated in the opening direction of the discharge port.

In the second aspect of the present invention, in the shredder, the means for providing the dust inlet is provided behind the waste paper inlet with the projection of the waste box interposed therebetween.

Further, according to a third aspect of the present invention, in the shredder, means for forming the rear portion of the opening / closing cover into a thick wall toward the projection of the waste box is used.

[0010]

DETAILED DESCRIPTION OF THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. First, a first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a vertical sectional view of a shredder according to this embodiment, the basic configuration of which is
A shredder body 4 having an unnecessary paper input port 2 on the upper surface and a shredded chip discharge port 3 on the lower surface via a built-in rotary blade 1 is detachably mounted on a waste box 5. . Further, in this embodiment, the overall length L of the shredder main body 4 is configured to be smaller than the overall length l of the waste box 5, so that the shredder main body 4 is removed.
When placed close to the front (left side of the drawing), the rear of the upper surface opening 6 of the waste box 5 excluding the shredder main body 4 is exposed to secure the general dust input port 7. Therefore, the waste box 5 can be used as a common waste box for shredded waste and general waste.

In the above-mentioned shredder, a structure for ensuring the safety of the rotary blade 1 will be described. The discharge port 3 of the shredder main body 4 is provided with an opening / closing cover 9 so as to rotate back and forth via a horizontal shaft 8 coaxial with the rotary blade 1. Further, by attaching a spring (not shown) to the horizontal shaft 8, the open / close cover 9 is biased in the direction of closing the discharge port 3. Here, the means for urging the opening / closing cover 9 is not limited to the spring of the present embodiment, but the rear portion 9a of the opening / closing cover 9 with the horizontal shaft 8 interposed may be heavier than the front portion 9b. It is also possible to adopt other means. In addition, 10 in the figure maintains the closed state of the discharge port 3,
It is a stopper that engages with the lower surface of the shredder main body 4 and restricts the opening / closing cover 9 from rotating further.

With the above structure, the shredder body 4 is removed when the shredded waste stored in the waste box 5 is discarded, as shown in FIG.
In the state of (A), since the opening / closing cover 9 is rotated and the discharge port 3 is automatically closed, it is possible to prevent the hand from entering the inside of the shredder body 4, and the danger to the rotary blade 1 can be prevented. Can be avoided. Also, when carrying the shredder body 4, the rotary blade 1
It is possible to prevent the shredded dust attached to the from dropping from the discharge port 3.

On the other hand, since the waste box 5 is provided with an upward protrusion 11 at the opening 6 thereof so as to face the rear portion 9a of the opening / closing cover 9, the shredder body 4 can be used for shredding unnecessary paper. In the state shown in FIG. 1 (B), which is placed on the waste box 5, the rear portion 9a of the opening / closing cover 9 is caused by the projection 11 to have the spring force of the horizontal shaft 8 and the rear portion 9a.
By being pushed up against the weight, the opening / closing cover 9 rotates and the discharge port 3 can be opened. Also,
In the present embodiment, the rear portion 9a of the open / close cover 9 is expanded toward the protrusion 11 of the waste box 5 so as to be thicker, so that the rotation angle of the open / close cover 9 due to the protrusion of the protrusion 11 increases, The discharge port 3 can be fully opened. With this configuration, even if a hand is put in through the general dust input port 7, it does not reach the rotary blade 1 due to the opening / closing cover 9, so that the safety for the rotary blade 1 is ensured even during shredding. I was able to. Further, it is expected that the turning operation of the opening / closing cover 9 flattens the shredded waste accumulated in the waste box 5.

In the above embodiment, the general waste input port 7 is provided behind the unnecessary paper input port 2 so that the waste box 5 can be used as both shredded waste and general waste. In the above, it is not an essential requirement to provide the general garbage input port 7. That is, on the assumption that the opening / closing cover 9 is provided in the discharge port 3 of the shredder body 4 and the projection 11 facing the rear portion 9a of the opening / closing cover 9 is provided in the waste box 5 in the same manner as in the above-described embodiment, FIG. As shown, the object of the present invention can be achieved even when the shredder body 4 and the waste box 5 have the same overall length and are attached without a gap.

Next, a second embodiment of the present invention will be described with reference to FIG. While this embodiment is a placement type in which the shredder body 4 is installed on the waste box 5 in the first embodiment,
The waste box 5 is of a pull-out type. Specifically, the casing 1 in which the shredder main body 4 has an open upper surface and a front surface
The waste box 5 is placed on the casing 2 and is housed in the casing 12 so that the waste box 5 can be freely taken in and out. In addition, it is basically necessary to axially fix the opening / closing cover 9 in the shredder main body 4 while urging the opening / closing cover 9 in the direction of closing the discharge port 3, and to provide the waste box 5 with the projection 11 facing the rear portion 9a of the opening / closing cover 9. This is the same as the first embodiment. However, since the waste box 5 is of a pull-out type, the height of the projection 11 should be adjusted so that the projection 11 does not get caught on the lower surface of the shredder body 4 when the waste box 5 is taken in and out. is required. Therefore, in this embodiment, the tip of the protrusion 11 is located below the lower surface of the shredder body 1. Here, the rear part 9 of the opening / closing cover 9
It is indispensable to swell a downward to form a thick wall.

With the above-mentioned structure, the waste box 5 is placed in the casing 1
In the state of FIG. 3 (A) pulled out from 2, the discharge port 3 is automatically closed by the opening / closing cover 9 biased upward. Therefore, even if a hand is put in through the front surface 12a of the casing 12 or the general dust inlet 7, the opening / closing cover 9 can prevent the hand from entering the inside of the shredder body 4.

On the other hand, in the state in which the waste box 5 is housed in the casing 12 as shown in FIG. 3B, the rear portion 9a of the opening / closing cover 9 is pushed upward by the projection 11 and the discharge port 3 can be opened. Also at this time, it is possible to prevent the rotary blade 1 from being touched by the open / close cover 9 even if the user puts his / her hand through the general dust inlet 7.

[0018]

As described above, according to the present invention,
When the main body of the shredder and the waste box are attached, the opening / closing cover will automatically open due to the protrusions provided on the waste box, so even if you put your hand through the general garbage inlet, the opening / closing cover will interfere with the shredder. It is possible to prevent touching the rotary blade inside the main body. On the other hand, when the main body of the shredder and the waste box are separated, the opening / closing cover automatically closes the outlet due to the urging force, so you cannot put your hand through the outlet. I was able to secure the sex. Also, in this state,
Even if the shredder body is carried around, shredded dust attached to the rotary blade will not drop from the discharge port.

[Brief description of the drawings]

FIG. 1 is a vertical cross-sectional view of a shredder according to a first embodiment of the present invention.

FIG. 2 is a vertical sectional view of another shredder according to the first embodiment.

FIG. 3 is a vertical sectional view of a shredder according to a second embodiment of the present invention.

FIG. 4 is a vertical sectional view of a conventional shredder.

[Explanation of symbols]

 1 Rotary Blade 2 Unnecessary Paper Input Port 3 Ejection Port 4 Shredder Main Body 5 Scrap Box 6 Opening Port 7 General Waste Input Port 8 Horizontal Axis 9 Open / Close Cover 10 Stopper 11 Protrusion 12 Casing

Claims (3)

[Claims] Claim: What is claimed is: 1. A shredder, comprising a main body of a shredder having an inlet for unnecessary paper formed on the upper surface thereof and a discharge port for shredded scraps formed on the lower surface thereof via a built-in rotary blade, and a waste box detachably provided below the shredder. The discharge port is provided with an opening / closing cover that rotates back and forth through a horizontal axis coaxial with the rotary blade while biasing the discharge port in the closing direction, and the waste box has an opening. When the upper part of the opening / closing cover is provided with an upward projection facing the rear part of the opening / closing cover and the shredder main body is attached to the waste box, the opening / closing cover is pushed up by the projection to rotate the rear part in the opening direction of the discharge port. A shredder characterized by its ability to move. 2. The shredder according to claim 1, wherein the dust input port is provided behind the input port for the unnecessary paper with the projection of the waste box interposed therebetween. 3. The shredder according to claim 1, wherein a rear portion of the opening / closing cover is formed thicker toward the projection of the waste box.