JPH09150069A - Shredder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a shredder which has a highly responsive switch for stopping the rotation of a cutter in case of emergency and therefore, can be conveniently used by arranging a switch operating part on both right/left sides on the upper surface of a main body. SOLUTION: A document 4 placed into a chute 5 is shredded by a cutter and then the shreds are thrown into a trash box 11 through a discharge port, so that the document can thus be made useless. If an operator 12 has a necklace caught by the cutter by mistake with the document 4, she would instantly put her hand on the main body 11, and in most of such cases, to the left 7a or to the right 7b or on both sides of the switch on the upper part of the main body 1. During this emergency time, the operator 12 would spontaneously react to cut the power supply to an electric motor by hand, which in turn, stops the cutter. Thus it is possible to obtain a shredder which proves its convenient use by the spontaneous operation by the operator 12 in emergency.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the convenience of using a general household shredder (document shredder).

[0002]

2. Description of the Related Art Conventionally, a shredder input port increases the shredding ability of documents, so that the size of the cutter device is limited, but the volume of the main body is unnecessarily large for installation for general household use. Because of the disadvantages, it is often installed at the full width of the main body in order to make the width of shreddable documents large, and it is necessary to operate / stop the electric motor and then the cutter, and to reverse the cutter when jamming the shredded documents. The switch operation part for performing the operation is generally provided on the right front side of the insertion port.

This is to consider the convenience of operation by making the switch operation unit visible in front of the document even when the document is inserted into the input port.

[0004]

However, in the above-mentioned configuration of the conventional technique, an expensive accessory such as a necklace worn by the user during shredding of unnecessary documents is accidentally caught in the slot. There was some inconvenience as a usability from the viewpoint of stopping the shredding such as in case of emergency, that is, an emergency stop in an emergency operation.

That is, when the document is shredded and the expensive necklace worn by the user is mistakenly caught in the document and caught in the cutter, the user's neck comes directly above the insertion port, so that the main body In contrast, the face is at the back of the insertion slot. That is, the document or the necklace disturbs the user, and the switch operation unit located in front of the insertion slot is out of the field of view, and the switch operation unit cannot be operated quickly. Therefore, necklaces etc. are caught in the cutter more and more, and it does not stop with a little damage,
Most of the switches could be destroyed without operating the switches, and expensive property could be lost.

[0006] It has been a problem to improve usability by providing a switch operation portion which can be quickly and naturally operated to stop rotation or emergency stop of the cutter in an emergency.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a shredder which is easy to use and has high adaptability to the operation of the rotation stop switch of the cutter in an emergency.

[0008]

According to the present invention, there is provided an input port provided on the upper part of the main body for inputting unnecessary documents, and a switch for cutting off power to a motor for driving a cutter. It is placed on both the left and right sides, and when the accessory such as an expensive necklace worn by the user is accidentally caught in the cutter, the left and right sides of the top of the main body will be natural even if the switch operation part does not come into view. If it is operated quickly, the probability of touching one of the switch operating parts is inevitably high, that is, the rotation of the cutter in an emergency, that is, an emergency stop, can be performed by naturally turning off the power to the electric motor. .

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is a cutter driven by an electric motor, an input port provided in the upper part of the main body for inputting unnecessary documents, and a shredded part provided in the lower part of the main part. Equipped with a discharge port for discharging documents and a switch for turning off the electric power to the electric motor, and the operation parts of the switch are arranged on the left and right sides of the upper surface of the main body, which is an expensive necklace that is accidentally worn by the user. Even if the switch operation part is not in the field of view when ornaments such as are caught in the cutter, it is inevitable that one of the switch operation parts will be touched if you operate the left and right sides of the main body naturally and quickly. It becomes high, that is, the rotation stop or emergency stop of the cutter in an emergency,
This can be done by turning off the power to the motor by natural operation.

According to a second aspect of the present invention, in the shredder according to the first aspect, the switch has the left and right operating portions positioned outside the insertion port in the longitudinal direction, and is erroneously expensive. Even when the necklace is caught in the cutter, even if the switch operation part is hidden by the necklace or documents,
You can easily and surely perform an emergency stop of the cutter or turn off the power by operating your hands with your hands open on the body. Can be

According to a third aspect of the present invention, in the shredder according to the first or second aspect, the left and right operation parts having the switches are formed behind the insertion opening.
In addition to improved usability, even if an expensive necklace is accidentally caught in the cutter, the switch operation part will not be hidden by the necklace or documents. Since it can be secured within the field of view, it is possible to quickly and easily and reliably perform the emergency stop of the cutter or the operation of the power off switch. That is, it is possible to further improve the responsiveness of the switch operation and make the shredder easy to use.

According to a fourth aspect of the present invention, in the shredder according to any one of the first to third aspects, the switch operating portion is formed from the rear of the insertion opening to the front thereof. When the space is small and the elongated body is placed not only on the right side of the work desk but also on the left side of the work desk, the cutter can be stopped or the power off switch can be operated easily. Regardless of this, switch operation can be performed with ease.

According to a fifth aspect of the present invention, in the shredder according to any one of the first to fourth aspects, after the electric motor is stopped when the operating portion is once operated by being connected to the switch, A control circuit for reversing the electric motor is provided.After the switch is once operated to stop the electric motor, that is, the cutter, the electric motor, that is, the cutter is controlled to be reversed by pressing the switch for a certain period of time. By forming a shredder by providing a circuit, when a necklace etc. is accidentally caught in the cutter, you can continue to operate the switch without looking at the switch operation part, and the natural flow from the cutter stop to the reverse rotation Therefore, the processing operation after the rotation of the cutter is stopped can be easily performed without any confusion about the switch operation.

(First Embodiment) A first embodiment of the present invention will be described below with reference to the accompanying drawings.

1, 2, and 3, reference numeral 1 denotes a shredder main body, the main body 1 is a cutter 3 driven by an electric motor 2, and an input port 5 provided on the main body 1 for inputting an unnecessary document 4. , Document 4 provided at the bottom of the main body 1 and shredded
A discharge port 6 for discharging the electric power and a switch 7 for cutting off the power supply to the electric motor 2 are provided. The operating portion of the switch 7 is disposed on the left and right sides of the left portion 7a and the right portion 7b on the upper surface of the main body 1.
Since both switches 7 de-energize the electric motor 2, the cutter 3 is stopped. Reference numeral 8 denotes a speed change mechanism including gears and the like, which rotates the electric motor 2 to rotate the cutter 3 with high torque. Reference numeral 9 is a so-called normal rotation switch for rotating the cutter 3 in the shredding direction of the document 4. Reference numeral 10 denotes a reversing switch of the cutter 3, which reverses the cutter 3 when the document 4 is jammed in the input port 5 or when it is desired to stop shredding, and the document 4
Is returned to the input side of the input port 5. Reference numeral 11 denotes a waste box for storing the shredded waste of the document 4. 12 is a user and 13 is a necklace worn by the user 12. Reference numeral 14 is a control circuit including a timer function for performing a sequence of sequentially switching the electric motor 2 between stop and reverse rotation.

The operation of the above configuration is as follows.
That is, in normal use, when the forward rotation switch 9 is operated to rotate the cutter 3 in the shredding direction and the document 4 is inserted into the insertion port 5, the cutter that rotates with a high torque by the rotation of the electric motor 2 by the speed change mechanism 8. The document 4 can be shredded at 3, and the document 4 that becomes confidential information can be invalidated from the discharge port 6 to the waste box 11.

Therefore, when the user 12 mixes with the document 4 and accidentally rolls up the necklace 13 into the cutter 3, that is, in an emergency, the user 12 swiftly touches the body 1 at the time of a fright. In many cases, the left hand 7a or the right hand 7b of the switch 7 on the upper part of the main body 1 is naturally touched by either or both of them. After that, it tries to pull out the necklace 13 from the insertion port 5. At this time, since the electric power of the electric motor 2 is turned off by the natural operation of the user 13, the cutter 3 is stopped. It is obvious that the switch 7 can be operated by such a natural flow, and eventually the rotation of the cutter 3 can be stopped without confusion even in an emergency, which is convenient for use.

(Embodiment 2) Next, FIG. 4 shows a second embodiment, and in the shredder of the above-mentioned first embodiment, the switch 7 has left and right operation parts 7a and 7b as input ports. The necklace 13 is erroneously expensive because it is formed outside the longitudinal direction of 5 (outside the dimension w).
When something is caught in the cutter 3, for example, necklace 1
Even if the operation parts of the switches 7a and 7b are hidden by the document 3 or the document 4, the electric power of the electric motor 2 can be easily and surely cut off by the action of spreading both hands and holding the hand on the main body 1. Emergency stop or power off switch operation can be performed.

(Third Embodiment) Furthermore, FIG. 5 shows a third embodiment, wherein the switch operating portion 6 is formed on the back side of the insertion opening 4 of the main body 1. When the necklace 13 is accidentally caught in the cutter 3, the face is on the back side of the insertion port 4, but the switch operation unit 6 is on the back side of the insertion port 4 position, so that the document 9 and the tie 13 do not interfere with the cutter. The rotation stop of 3 and the subsequent operation can be more easily operated even in an emergency.

(Embodiment 4) FIG. 6 shows a fourth embodiment, and in the shredder according to any one of the above-described first to third embodiments, the switch 7 is provided with the left and right operation parts 7.
The a and 7b are formed behind the charging port 5. Therefore, the document 4 and the necklace 13 do not interfere with the operation of the switch 7 during normal use and in an emergency, and the installation place is the desk 1.
It will be clear from the above consistent description that either switch 7a or 7b can be located nearby and can be used with either side of either side of 5 for easy operation at any time.

(Fifth Embodiment) FIG. 7 shows a fifth embodiment, and any of the shredders of the above-described first to fourth embodiments is effective, but the control circuit 1
Reference numeral 4 is connected to the switch 7, and when at least one of the operation portions 7a and 7b is once operated, the electric motor 2 is stopped and then the electric motor 2 is reversed. Other configurations are the same as the above embodiment. In an emergency, after turning off the electric power of the electric motor 2 by the switch 7 and stopping the cutter 3,
Alternatively, the circuit is formed so that the electric motor 2 and the cutter 3 are rotated in the reverse direction when the operation of pressing the electric motor 2 for a certain period of time is continued as it is. That is, the necklace 13 is pulled out from the insertion port 5 by holding the upper part of the body 1. At this time, the electric power of the electric motor 2 is turned off by the natural movement of the user's 12 hand, and the cutter 3 can be stopped without confusion even in an emergency. Even if the user 13 is confused and cannot swiftly operate the electric motor 2 and thus the cutter 3 in the reverse direction, if at least one of the switch 7 operating portions 7a and 7b is operated for 3 seconds, it is natural. The necklace 13 will be pulled out from the insertion port 5 in the flow of the operation. Therefore, it is easier to use and can be operated in an emergency.

[0022]

As is apparent from the above embodiments, according to the invention described in claim 1 of the present invention, not only the normal use but also the emergency use can be carried out quickly and naturally by the natural operation. It is possible to provide a shredder capable of ensuring good quality.

According to the second aspect of the present invention, in addition to ensuring the convenience of use not only in normal use but also in an emergency, the subsequent operation can be more easily operated while the switch operation unit remains in the field of view. You can get better.

According to the third aspect of the present invention, the switch operating portion naturally remains in the field of view in an emergency, and the switch operation can be operated more easily and the usability can be improved.

According to the invention described in claim 4, not only can safety be ensured by an emergency and natural operation even in an emergency,
It can be conveniently used regardless of whether the installation location is on either side of the desk.

In the invention described in claim 5, even in an emergency, it can be performed quickly and with a natural flow of switch operation.
Further improvement in usability can be expected.

[Brief description of the drawings]

FIG. 1 is a perspective view of a shredder according to a first embodiment of the present invention.

FIG. 2 is a sectional view of the same.

FIG. 3 is a perspective view showing a usage state of the shredder.

FIG. 4 is a perspective view of a shredder according to a second embodiment of the present invention.

FIG. 5 is a perspective view of a shredder according to a third embodiment of the present invention.

FIG. 6 is a perspective view of a shredder according to a fourth embodiment of the present invention.

FIG. 7 is a schematic flowchart for shifting from stop of the cutter of the shredder to reverse rotation in the fifth embodiment of the present invention.

[Explanation of symbols]

 1 Main Body 2 Electric Motor 3 Cutter 4 Document 5 Input Port 6 Ejection Port 7 Switches 7a, 7b Operation Section 14 Control Circuit

Claims (5)

[Claims] 1. A cutter driven by an electric motor, an input port provided at an upper part of the main body for inputting unnecessary documents, an exhaust port provided at a lower part of the main body for discharging shredded documents, and energizing the electric motor. A shredder which is provided with a switch for turning off the switch, and the operation portion of the switch is arranged on both left and right sides of the upper surface of the main body. 2. The shredder according to claim 1, wherein the left and right operation parts are located outside the insertion port in the longitudinal direction. 3. The shredder according to claim 1, wherein the left and right operation parts are formed behind the insertion port. 4. The shredder according to claim 1, wherein the operating portion of the switch is formed so as to extend from the rear of the insertion opening to the front thereof. 5. The shredder according to claim 1, further comprising a control circuit that is connected to the switch and that reverses the electric motor after the electric motor is stopped when the operating portion is once operated.