JPH1110017A - shredder - Google Patents

Abstract

(57) [Summary] [Problem] In addition to cutting paper etc. with a shredder,
Even relatively large refuse such as paper waste is thrown away and thrown away, and even if a person puts his hand through the trash inlet, the cutter cannot be touched to improve safety. SOLUTION: A cutter unit 2 is mounted on an apparatus body 1,
A front door 3 is provided on the front side of the apparatus body 1 so as to be openable and closable. A garbage inlet 34 is formed by opening the widened upper part of the front door 3 whose upper part is widened and protruded forward, and a slope part 35 for smoothly sliding the garbage down to the chip basket 16 is provided inside the front surface. The cutter 10 and the upper opening 34a of the refuse input port 34 have a substantially horizontal positional relationship, and the frame 12
When the lower end of the front portion 12a is positioned lower than the lower end of the cutter 10, even if a person puts his / her hand through the dust inlet 34, the hand does not reach the cutter 10, and the risk of injury is extremely reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shredder for finely cutting paper or the like.

[0002]

2. Description of the Related Art As is well known, shredders are used to cut paper or the like into fine or very fine pieces, and are widely used in offices and the like regardless of individuals or corporations. . By the way, as a general usage form of shredders, a single shredder is installed on one floor and shared by multiple users. However, the form of personal use almost exclusively is also increasing.

[0003] Such a mode of use is very convenient without the hassle of having to go to a common shredder installation location with the paper to be cut and the like.
On the other hand, even if such a shredder for personal use is installed, small waste such as documents and sticky notes that do not need to be cut and thrown away will occur, so it is usual to put a trash can beside the desk It is in the state of. That is, there is no need to cut the paper, such as paper debris that is too small to be shredded, or sticky notes that have glue and tend to adhere to the wall of the slot when thrown into the shredder. It is not only troublesome to start the shredder and cut it every time, but the cutter always generates a sound at the time of cutting, so if you operate the shredder frequently, this sound will become noise,
This is because there are problems such as inconvenience to surrounding people.
However, if a shredder and a garbage bin are juxtaposed, even if they are relatively small, the space around the desk will be narrowed by the juxtaposition and people will walk while avoiding the shredder and garbage bin. It is easier.

[0004] Such a problem can be solved if the shredder can be used for dusting, and the inventors of the present invention have known that a shredder is provided with an opening for dusting in the upper surface thereof. However, since a cutter and a motor for driving the cutter are provided inside the shredder, in order to allow dust thrown in from the opening on the top of the shredder to drop without interfering with them, the opening for throwing must have an opening area. The size of garbage that can be thrown in must be limited to relatively small ones.For example, paper garbage that is just the size of a copy paper roll is easily clogged,
Often it was not thrown away.

In a general shredder, irrespective of a large or small size, finely cut dust (hereinafter referred to as chips) is stored in an internal container (hereinafter referred to as a chip basket), and a predetermined amount of chips is accumulated. In the meantime, while taking out the chip basket from the shredder and throwing away chips, the task of throwing away chips is troublesome, so the chip basket is full and you can not continue using it unless you throw away chips once Even in the state, the chip is often compressed by hand or the like to reduce the apparent volume and continue to be used as it is. There is no particular problem if you take out the chip basket completely from the shredder and compress such chips,
It is troublesome to take out the chip basket, and there is a case where the user tries to compress the chips by putting his / her hand through the opening for dust. In addition, it is possible that the thrown trash is caught and tries to push it into the chip basket by putting a hand. Of course, other than that, they may try to pick up the garbage they once discarded, or play with their hands. In such a case, there is a high possibility that the cutter is touched or the mouth of the clothes is caught in the cutter, resulting in serious injury.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a safe shredder that does not injure the user by touching the cutter even if a person puts his hand through the refuse inlet. Also, the present invention is not limited to small trash such as sticky notes,
It is an object of the present invention to provide a shredder which can throw in relatively large refuse such as rolled paper waste and throw it away.

[0007]

According to a first aspect of the present invention, there is provided a shredder in which a cutter section having a built-in cutter is disposed on an apparatus main body, and the cutter section is provided in the apparatus main body. In a shredder including a container for storing paper scraps and the like finely cut by the cutter unit,
The apparatus main body has an opening / closing door on the front side, and an opening communicating with the inside of the apparatus main body is provided at an upper end portion of the opening / closing door, so that dust and the like can be put into the container. Are arranged so as to have a substantially horizontal positional relationship, and at least a member interposed between the cutter and the opening is disposed between the cutter and the opening.

In order to achieve the above object, a shredder according to a second aspect of the present invention has a cutter unit having a built-in cutter disposed on an apparatus main body, and accommodates paper dust and the like finely cut by the cutter unit in the apparatus main body. In a shredder provided with a container to perform, the device body has an opening and closing door on the front side,
An opening communicating with the inside of the apparatus main body is provided at the upper end of the opening / closing door, so that dust and the like can be put into the container, and between the cutter and the opening, at least between the cutter and the opening. And a lower end of the intervening member is disposed below a lower end of the cutter.

According to a third aspect of the present invention, in order to achieve the above object, the front edge of the opening of the apparatus main body is curved so as to protrude further forward than the front of the apparatus main body. It is characterized by becoming.

According to a fourth aspect of the present invention, in order to achieve the above object, a slope for dust falling connecting the opening provided in the door and the upper part of the container is curved downward, The lower end of the ramp protrudes above the container.

In order to achieve the above object, a shredder according to a fifth aspect of the present invention is characterized in that a recess or a recessed step is provided inside an edge of the opening on the front side of the apparatus main body. .

According to a sixth aspect of the present invention, in order to achieve the above object, a member for introducing an object to be cut, such as paper, into the cutter has a tapered inlet whose lower side is narrower than its upper side. An introduction part and a concave receiving part located above the introduction part, and the concave receiving part has a shape that extends in the entire circumferential direction from the upper opening of the introduction port on the top surface of the cutter part. It is characterized by.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of one embodiment of a shredder according to the present invention, and FIG. 2 is a sectional view of the same. As shown in the drawing, the shredder of this embodiment has a cutter unit 2 mounted on a vertically elongated apparatus main body 1 having a rectangular parallelepiped shape, and a front door 3 on the front side of the apparatus main body 1 is hinged at a side edge so that the front door 3 can be opened and closed. (Not shown). A caster 4 is provided on the bottom of the apparatus main body 1 so that the entire shredder can be easily moved on the floor or the like.

The cutter unit 2 has a paper input port 6 opened on the top cover 5 and an operation panel 7 and a power switch 8. On both left and right sides of the top cover 5, recesses 9 serving as handles for transportation are provided. (Only the right side is shown in the figure). A cutter 10 composed of a pair of substantially cylindrical blades and a motor 11 for rotating the cutter 10 are supported and fixed by the frame 12 and the intermediate plate 13 of the cutter unit 2 inside the upper cover 5. A portion of the intermediate plate 13 supporting the cutter 10 is provided with an introduction member 15 having a tapered paper introduction port 14 in which a part of the upper surface is cut away and the lower side is narrower than the upper side. Then, the chips cut by the cutter 10 can be dropped into the chip basket 16 in the apparatus main body 1. Note that the tip basket 16 is made of a combination of wires, and a garbage bag such as a plastic bag is attached inside when the chip basket 16 is actually used.

The paper input port 6 is provided with the above-described introduction member 15.
And a chip receiving recess 5a formed integrally with the top cover 5 of the cutter unit 2. This type of shredder is generally made of resin for the top cover 5, so that people can get on it,
It easily bends when a force is applied by sitting on it, and the top cover 5
Is too close to the cutter 10 and is dangerous, so the tip receiving recess 5a is kept away from the cutter 10 by providing an introduction member 15 made of a rigid member such as a sheet metal material.

The chip receiving recess 5a has a track-shaped track-and-field athletic track shape and a substantially semicircular cross-sectional shape, and is provided with quarter-spherical portions at both ends of a portion along the longitudinal direction of the cutter 10, respectively. Paper inlet 6 of this type of shredder
The area is wider than the normal plane area of. For this reason, as shown in FIG. 3, when the cutter 17 is rotated in the reverse direction due to a paper jam and the paper 17 to be cut is pulled out above the paper input port 6, the chips 17 a scattered from the lower end of the paper 17 are almost spilled. Without being received in the chip receiving recess 5a. Of course, various shapes other than the illustrated example can be adopted as the shape of the paper inlet 6.

As described above, the bottom of the portion of the intermediate plate 13 supporting the cutter 10 and the motor 11 that covers the cutter 10 is open, but the shutter device 1
8 are provided. This shutter device 18 is shown in FIGS.
As shown in FIG.
And a shutter opening / closing mechanism 20 for driving them in conjunction with each other. Each shutter blade 19
When the shutter blades 19 and 19 are closed, as shown in FIG. 7, the blade portion 21 has a rectangular plate shape and a tapered cross-sectional shape, and a shaft portion 22 having a circular cross-sectional shape. The tips of the blade portions 21 overlap so that chips falling from the cutter 10 do not fall into the apparatus main body 1. 23 in the figure
A urethane sheet material serving as a stopper for regulating the upper rotation position of the shutter blade 19.

The shutter opening / closing mechanism 20 includes a gear 2 formed at an end of a shaft 22 of the front shutter blade 19.
4, a gear 25 meshable with the gear 25, a cam plate 26 fixed to an end of the support shaft 25a of the gear 25 and rotating integrally with the gear, a spring 27 for urging the cam plate 26 to rotate in a certain direction, and a gear. A pulley 28 provided on the support shaft 25a of the gear 25 on the opposite side of the cam plate 26 with respect to the cam plate 26, a pulley 29 attached to the end of the shaft portion 22 of the rear shutter blade 19, and between the pulleys 28, 29 And a push plate 31 provided inside the front door 3 for interlocking the opening and closing of the shutter blade 19 with the opening and closing of the front door 3. The gear portion 24 at the end of the shaft portion 22 of the shutter blade 19 is provided with teeth at 90 degrees around the axis as shown in FIG. The spring 27 urges the cam plate 26 to rotate clockwise in FIGS. 32 and 33 in the figure are:
A support plate for attaching the shaft portion 22 of the shutter blade 19 to the frame 12 of the cutter portion 2;
The side on which the gear 25 and the cam plate 26 are mounted (FIG.
The support plate member 33 (left side of 5) is larger than the support plate member 32 on the other side, as shown in FIGS. 5 and 6, so that the upper end of the spring 27 can be fixed.

As shown in FIG. 2, the front door 3 has a wedge-shaped cross-section having a widened upper portion. There is an input port 34. In addition, the refuse inlet 34 is provided with a slope portion 3 on the inside of the front surface for allowing the refuse to slide down smoothly to the chip basket 16.
5 is integrally molded. The slope portion 35 is a portion 3 slightly recessed just below the upper opening of the refuse input port 34.
An eave portion 37 is formed at a lower end portion which is slightly inclined from 6 to the front side and is inclined downward and comes closest to the chip basket 16. For this reason, the refuse input port 34 has an opening dimension slightly smaller than the thickness of the front door 3, and
For example, it is possible to insert even paper dust or the like obtained by simply rolling up copy paper. Further, due to the eaves portion 37, the dust put in from the upper opening 34a of the dust inlet 34 may fall between the apparatus main body 1 and the front door 3 after finishing falling on the slope portion 35. No, waste input port 34
From the lower opening 34b. The part 36 also serves as a handle by hanging a finger on the step.

In the illustrated example, the chip basket 16
Has a size that slightly protrudes from the inside of the apparatus main body 1 to the front door 3 side, and the eave portion 37 is located inside the surface of the front door 3 on the apparatus main body side.
The chip basket 16 may be sized to completely fit inside the apparatus main body 1, and the tip of the eave portion 37 may be flush with or project from the surface of the front door 3 on the apparatus main body side.

By the way, there is no member constituting the back surface of the front door 3 on the apparatus body side 1 at the portion of the front door 3 which is set as the dust inlet 34, and the front portion 12 of the frame 12 of the cutter portion 2
a is interposed between the dust inlet 34 and the cutter 10 in the cutter unit 2 except for the lower opening 34b of the dust inlet 34. In the illustrated example, as shown in FIG. 2, the cutter 10 and the upper opening 34 a of the refuse input port 34 have a substantially horizontal positional relationship, and the lower end of the front portion 12 a of the frame 12 is located below the lower end of the cutter 10. It is arranged to be located. By doing so, the position of the upper opening 34a of the refuse input port 34 is higher, and the refuse can be easily input, and even if the shutter device 18 is not provided, a person enters the refuse input port 34 through the refuse input port 34. However, the hand does not reach the cutter 10 and the risk of injury is extremely reduced. Note that if the lower end of the front surface portion 12a of the frame 12 is located below the cutter 10, the positional relationship between the cutter 10 and the upper opening 34a of the dust inlet 34 may not be horizontal. Further, instead of the front surface portion 12a of the frame 12, the intermediate plate 13 or a separately provided blocking member may have the above-described relationship with the cutter 10 and the dust inlet 34.

Next, the interlocking operation between opening and closing the front door 3 and opening and closing the shutter blades 19 will be described. FIG.
Opened the front door 3 so that the shutter blades 19, 19
Indicates a closed state. In this state, the cam plate 2
6 is free, the cam plate 26 rotates rightward in the drawing by the urging force of the spring 27, and the gear portion 24 of the shaft portion 22 of the front shutter blade 19 located on the left side in the drawing meshes with the gear 25, The shutter blade 19 is rotated upward (to the left in the drawing) to a position where the shutter blade 19 becomes substantially horizontal as shown in the figure, and stops after hitting the urethane sheet material 23. The timing belt 30 is driven by the rotation of the cam plate 26, and the rear shutter blade 1
9 rotates clockwise in the drawing, and its tip rides on the tip of the front shutter blade 19 and stops in an overlapping state. That is, the front door 3 is opened and the chip basket 1 is opened.
When the chips fall from the cutter unit 2 side in a state where the sheet 6 is taken out, the chips are scattered in the apparatus main body 1 and cleaning is troublesome, but the chips fall almost completely due to the overlap of the tip of the shutter blade 19. Stopped.

When the front door 3 is closed from this state, the push plate 31 goes under the cam plate 26 and pushes up the cam plate 26 so as to rotate leftward in the figure against the urging force of the spring 27. Then, the shutter blade 19
Since the gear portion 24 of the shaft portion 22 is provided only in the range of 90 degrees, it does not mesh with the gear 25, and the front shutter blade 19 rotates downward by its own weight from the horizontal state (right rotation in the figure), and vertically moves downward. And the state shown in FIG. 8 is obtained.
Further, the timing belt 30 is driven with the rotation of the cam plate 26, and the rear shutter blade 19 is rotated leftward in the drawing, which also hangs vertically downward to the state shown in FIG. As a result, the shutter is opened, and the chip cut by the cutter 10 and the shutter blade 19
When the is closed, chips mounted thereon can drop into the chip basket 16 in the apparatus main body 1. Note that the push plate 31 can be provided at an appropriate position of the chip basket 16 instead of the front door 3.

In the state shown in FIG. 8, the shaft portion 22 of the front shutter blade 19 is in a free state.
The front shutter blade 19 can freely rotate between the horizontal state in FIG. 7 and the hanging state in FIG. For this reason, when a person puts his hand through the refuse input port 34 and tries to further advance his / her hand through the lower opening 34b of the refuse input port 34, the hand first hits the front shutter blade 19,
As the hand is pushed up and covers the lower side of the cutter 10, the hand cannot reach the cutter 10, so that there is almost no risk of injury. With this structure, if the shutter portion 2 can be removed from the apparatus main body 1 or can be used alone, if the shutter portion 2 is lifted, the push plate 31 of the front door 3 will not be in a state of pushing up the cam plate 26. As described above, the shutter blades 19 and 19 are closed, so that a person or an object can be prevented from touching the cutter 10.

In the state shown in FIG. 8, the spring 27 is extended by the rotation of the cam plate 26, and a biasing force is applied to the cam plate 26 by the spring 27 so that the cam 27 rotates clockwise. Therefore, when the front door 3 is opened, the shutter blades 19, 19
Returns to the state of FIG. 7 described above.

In the embodiment described above, the interlocking structure of the door and the shutter is adopted. However, it is also conceivable that the insertion and removal of the chip basket into and from the apparatus main body and the opening and closing of the shutter are interlocked. Can be In this case, for example, an appropriate sensor may be provided inside the bottom of the apparatus main body, and a means capable of triggering the opening and closing of the shutter blade by an output signal of the sensor may be provided. Of course, various types of interlocking structures can be employed. In the illustrated embodiment, the inside of the front door 3 remains empty and is not otherwise used. For example, the entire surface of the front door 3 on the side of the apparatus main body 1 is opened, and a garbage bag is suspended inside the front door 3. You can also. Further, the chip basket 16 may be divided into front and rear portions, and chips cut by the cutter 10 may fall on a rear portion thereof, and refuse introduced from the refuse inlet 34 may fall on a front portion.

[0027]

As described above, the shredder according to the present invention allows a person to enter through the opening by setting the positional relationship between the cutter and the opening provided in the opening / closing door for introducing dust into a predetermined relationship. There is no effect that the hand is touched by the hand and the cutter is not injured.

As described above, in the shredder according to the third aspect, the front edge of the device main body of the opening for dust input provided in the opening / closing door projects further forward than the front surface of the device main body. Because it is curved, in addition to the above-mentioned common effects, the opening area becomes large, and not only small dust,
There is an effect that large-sized refuse can be thrown in, such as paper scraps obtained by simply rolling copy paper.

As described above, the shredder according to the fourth aspect of the present invention has a downwardly curved sloping path for connecting garbage from the refuse input opening provided in the opening / closing door to the upper part of the container in the apparatus main body. And the lower end protrudes above the container, in addition to the above-mentioned common effects, the added dust is not dropped in the opening / closing door or between the device body and the opening / closing door, and can be surely put into the container. There is.

In the shredder according to the fifth aspect, as described above, a recess or a recessed step is provided inside the front side edge of the apparatus main body of the opening for introducing dust provided in the opening / closing door. In addition to the above-described common effects, this portion can be used as a handle in the case of the opening / closing door, which has the effect of being convenient.

In the shredder according to the sixth aspect, as described above, the member for introducing the cut material such as paper into the cutter has a wide concave receiving portion. In addition, when the cutter is rotated in the reverse direction, the cut object such as the finely cut paper is prevented from spilling outward and scattering, so that the surroundings are not stained.

[Brief description of the drawings]

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

FIG. 2 is a cross-sectional view of the shredder of FIG.

FIG. 3 is a perspective view showing a state in which chips are prevented from being scattered in a chip receiving portion of the shredder of FIG. 1;

FIG. 4 is a plan view of a shutter device of the shredder of FIG. 1;

FIG. 5 is a front view of the same.

FIG. 6 is a side view of the same.

FIG. 7 is a side view showing a state where a shutter blade is closed by the shutter device of FIG. 4;

FIG. 8 is a side view showing a state where the shutter blade is opened.

FIG. 9 is a sectional view showing a gear at the shaft end of the shutter blade.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Apparatus main body 2 Cutter part 3 Front door 4 Caster 5 Top cover 5a Chip receiving concave part 6 Paper insertion port 7 Operation panel 8 Power switch 9 Concave part (handle for conveyance) 10 Cutter 11 Motor 12 Cutter part frame 12a Cutter part frame 13 Front plate 13 Intermediate plate 14 Paper inlet 15 Introducing member 16 Chip basket 17 Paper 17a Chip from which paper is cut 18 Shutter device 19 Shutter blade 20 Shutter opening / closing mechanism 21 Blade portion of shutter blade 22 Shaft portion of shutter blade 23 Urethane sheet material 24 Gear part 25 Gear 25a Gear support shaft 26 Cam plate 27 Spring 28, 29 Pulley 30 Timing belt 31 Push plate 32, 33 Support plate material 34 Garbage inlet 34a Above dust inlet Opening 34b Lower opening of garbage inlet 35 Slope 36 Depressed part at upper part of slope 37 Eave of slope

Claims (6)

[Claims] 1. A shredder provided with a cutter unit having a built-in cutter on an apparatus main body and a container for storing paper scraps and the like finely cut by the cutter unit in the apparatus main body, wherein the apparatus main body is opened and closed on the front side. A door is provided, and an opening communicating with the inside of the apparatus main body is provided at an upper end of the opening / closing door, so that dust and the like can be put into the container, and the cutter and the opening are arranged in a substantially horizontal positional relationship. And a member interposed between the cutter and the opening at least between the cutter and the opening. 2. A shredder in which a cutter unit having a built-in cutter is disposed on an apparatus main body, and a shredder including a container for storing paper dust and the like finely cut by the cutter unit in the apparatus main body, wherein the apparatus main body is opened and closed on the front side. An opening communicating with the inside of the apparatus main body is provided at an upper end of the opening / closing door so that dust and the like can be put into the container, and at least these cutters are provided between the cutter and the opening. And a member interposed between the opening and the opening, and a lower end of the interposed member is disposed below a lower end of the cutter. 3. The shredder according to claim 1, wherein an edge of the opening on the front side of the device main body is curved so as to protrude further forward than a front surface of the device main body. 4. A dirt drop ramp connecting the opening provided in the door to the upper portion of the container is curved downward, and a lower end of the ramp protrudes above the container. A shredder according to any one of claims 1 to 3, characterized in that: 5. The shredder according to claim 1, wherein a concave portion or a concave step portion is provided inside an edge of the opening on the front side of the apparatus main body. 6. A member for introducing a cut object such as paper into the cutter includes an introduction portion having a tapered introduction port whose lower side is narrower than an upper side, and a concave receiving portion located above the introduction section. The shredder according to any one of claims 1 to 5, wherein the concave receiving portion has a shape that extends from an upper side opening of the inlet in the entire circumferential direction on a top surface of the cutter portion.