JP2009119398A - Feeder and shredder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently supply paper to a shredder with less energy. <P>SOLUTION: A feeder 30 includes a mounting base 7 capable of supporting a laminated body 50 of the same paper, a diaphragm 8, a cam 12 for oscillating the diaphragm 8, and a feeding roller 9 for supplying part of the laminated body 50 of paper to the shredder 40 in a state of oscillating the diaphragm 8 by the cam 12. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a paper feeding device that supplies paper to a cutting device and a cutting device including the paper feeding device.

  In a shredder configured such that the user manually inputs paper into the shredder, when the amount of paper is large, there is a problem that it takes a long time to cut the paper. Therefore, a paper feeding device that can automatically feed a large amount of paper into the shredder has been realized.

  However, when a large amount of paper (about 300 sheets) is set in the paper feeder, there is a problem that the paper is not properly supplied to the shredder due to its own weight.

Therefore, in the shredder described in Patent Document 1, paper is continuously supplied to the shredder by vibrating a paper table on which paper to be cut is placed.
Japanese Patent Laid-Open No. 5-277392 (published on October 26, 1993)

  However, in the shredder described in Patent Document 1, since the entire paper table is vibrated, a large amount of energy is required to vibrate the paper table, and the paper table cannot be efficiently vibrated. .

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a paper feeding device that can efficiently supply paper to the shredder with less energy and a cutting device including the paper feeding device. It is to provide.

  In order to solve the above-described problems, a paper feeding device according to the present invention is a paper feeding device that supplies paper to a cutting device capable of cutting paper, and can support a plurality of paper stacks. In the state where the mounting unit, the vibrating unit that vibrates the vibration mounting unit which is a part of the plurality of mounting units, and the vibrating unit vibrates the vibration mounting unit, And a supply unit for supplying a part of the cutting device to the cutting device.

  According to said structure, a some mounting part supports the same 1 and the laminated body of paper, and a vibration part is one part mounting part (vibration mounting part) among several mounting parts. Only vibrate. And a supply part supplies a part of paper laminated body to a cutting device in the state which the vibration part is vibrating the vibration mounting part.

  Since the vibration part vibrates the vibration mounting part, the adhesion between the papers constituting the paper laminate decreases, and the weight of the paper laminate instantaneously decreases. The section can easily supply the paper to the cutting device.

  In addition, since only a part of the plurality of placement units that support the paper layer is vibrated, energy required to vibrate the paper stack can be saved.

  Moreover, it is preferable that the said vibration mounting part exists in the position near the said supply part rather than the other mounting part which does not vibrate.

  According to the above configuration, the vibration placement unit is closer to the supply unit than other placement units that do not vibrate, and thus the paper layer can be vibrated at a position close to the supply unit. The purpose of vibrating the paper layer is to facilitate the paper supply by the supply unit. By vibrating the paper layer at a position close to the supply unit, the paper supply by the supply unit can be made easier.

  In addition, the vibration unit includes a vibration generating rotator that rotates while contacting the vibration placement unit, and the cross-sectional shape of the plane perpendicular to the rotation axis of the vibration generating rotator is an outer edge portion thereof. It is preferable to have a step.

  According to the above configuration, when the vibration generating rotator rotates, the distance between the rotation shaft of the vibration generating rotator and the vibration mounting portion changes abruptly at the level difference portion of the vibration generating rotator. . Therefore, the vibration mounting portion can be vibrated by rotating the vibration generating rotator.

  In addition, the supply unit includes a supply rotator that supplies paper that contacts the cutting device to the cutting device when the supply unit rotates, and the rotation shaft of the vibration generating rotator is configured to pass through the at least one gear. It is preferable to be linked with the rotation shaft of the supply rotator.

  According to said structure, a vibration generation | occurrence | production rotation body can be rotated in response to the operation | movement which a supply part supplies paper to a cutting device. Therefore, the vibration placing unit can be vibrated in conjunction with the operation of supplying the paper to the cutting device by the supply unit, and a configuration for easily supplying the paper to the cutting device while vibrating the paper stack. be able to.

  The sheet feeding device has a surface that can cover at least a part of the supply unit, and is in contact with the stacked body on the side opposite to the supply unit with the stacked body interposed therebetween. It is preferable to further include a protection unit that can change its position in a direction approaching the supply unit as the thickness decreases.

  According to said structure, the protection part has a surface which can cover at least one part of a supply part. Furthermore, the protection unit is in contact with the paper stack from the side opposite to the supply unit, and approaches the supply unit as the thickness of the paper stack decreases as the paper is supplied to the cutting device. Change its position in the direction.

  Therefore, when all the paper laminates are lost, the protection unit protects the supply unit, and the risk of the user's hand getting caught in the supply unit can be reduced. The risk of injury to the user can be prevented by the cutter of the cutting device nearby.

  Further, a cutting device that includes the paper feeding device and cuts the paper supplied from the paper feeding device is also included in the technical scope of the present invention.

  As described above, the paper feeding device according to the present invention includes a plurality of placement units that can support the same paper stack, and a vibration placement unit that is a part of the plurality of placement units. And a supply unit that supplies a part of the laminated body to the cutting device in a state where the vibration unit vibrates the vibration mounting unit.

  Therefore, there is an effect that the paper can be efficiently supplied to the shredder with less energy.

  The following describes one embodiment of the present invention with reference to FIGS. The paper feeding device 30 according to the present embodiment is a paper feeding device that can be attached to a shredder (cutting device) 40. The shredder 40 is capable of cutting at least paper, and may be capable of cutting CD (compact disc) in addition to paper.

(Configuration of Paper Feeder 30)
FIG. 1 is a side view of the paper feeding device 30. FIG. 2 is a perspective view of the sheet feeding device 30 as viewed from the front oblique direction. FIG. 3 is a perspective view of the sheet feeding device 30 as viewed from the back side. FIG. 4 is a perspective view showing the internal structure of the paper feeding device 30. 1 to 4, each member constituting the paper feeding device 30 is depicted as a transparent member so that the structure of the paper feeding device 30 can be easily understood.

  As shown in FIG. 1, the paper feeding device 30 is mounted on the top of the insertion port 41 of the shredder 40. The shredder 40 includes a cutter 42 and a CD cutter 43 that cut paper.

  As shown in FIGS. 1 to 3, the sheet feeding device 30 includes a right cover 1, a left cover 2, a right structure support portion 3, a left structure support portion 4, and a bottom portion 19 that form a main body. The right cover 1 is fixed to the right structure support 3 and the left cover 2 is fixed to the left structure support 4. The relative positions of the right structure support portion 3 and the left structure support portion 4 are fixed in a state where a predetermined distance is maintained by the bottom portion 19.

  In addition, you may provide the fixed pillar 21 which bridge | crosslinks the right side structure support part 3 and the left side structure support part 4, as shown in FIG. 2, without providing the bottom part 19 shown in FIG.

  Between the right side structure support part 3 and the left side structure support part 4, a placing table (mounting part) 7 for placing a laminated body of paper to be cut, a diaphragm (vibrating placing part) 8, and A front stand 6 is provided. The mounting table 7, the vibration plate 8, and the front table 6 form a paper mounting table for placing a paper laminate. The mounting table 7 and the diaphragm 8 support the bottom surface of the paper stack 50, and the front table 6 supports the side surface of the paper stack 50.

  The mounting table 7 and the diaphragm 8 may be parallel to the bottom portion 19, but are preferably inclined with respect to the bottom portion 19. With this configuration, a large amount of the paper laminate 50 leans against the front table 6, and the possibility of the paper laminate 50 falling down is reduced, so that the paper laminate 50 can be safely placed. Moreover, it is preferable that the angle of the front table 6 with respect to the mounting table 7 and the diaphragm 8 can also be adjusted. For example, it is preferable that the angle of the front stand 6 can be adjusted by about 5 ° to 20 °.

  As shown in FIG. 4, the front stand 6 has a side surface 6a, and a groove 6b is formed on the side surface 6a. A safety cover (protection part) 5 is provided so as to be movable along the groove 6b. The safety cover 5 has a surface that can cover at least a part of a feeding roller 9 and a feeding shaft 11 described later.

  In addition, you may insert the protrusion part formed in the outer edge of the safety cover 5 rotatably with respect to the groove | channel 6b so that the angle with respect to the front stand 6 of the safety cover 5 can be adjusted.

  A feeding roller (feeding rotator) 9 is disposed in the vicinity of the edge of the diaphragm 8 opposite to the edge close to the mounting table 7. That is, these members are arranged in the order of the mounting table 7, the diaphragm 8, and the feeding roller 9 along the bottom surface of the stacked paper stack 50.

  The feeding roller 9 is in contact with the bottom surface of the paper stack 50, and feeds the paper in contact with the shredder 40 by rotating itself. The feeding roller 9 is formed with a plurality of protrusions 9a for increasing the frictional force with the paper.

  The paper 51 moved by the feeding roller 9 is discharged from the supply port 20 (see FIG. 1) provided in the bottom portion 19 and is input to the input port 41 of the shredder 40.

  The feeding roller 9 rotates with the feeding shaft 11 as a rotation axis. As shown in FIG. 2, the feeding shaft 11 is rotated by a drive motor 10 stored inside the right structure support 3. The feeding roller 9 and the feeding shaft 11 function as a supply unit that supplies paper to the shredder 40.

  In addition, an operation switch 17 for controlling on / off of the operation of the drive motor 10 is provided on the right structure support 3. When this operation switch 17 is turned on, the feeding roller 9 is rotated by operating the drive motor 10, and the paper placed on the mounting table 7 and the diaphragm 8 is automatically supplied to the shredder 40.

  As will be described in detail later, the rotational force of the drive motor 10 is transmitted to the cam gear 16 through the first gear 14 and the second gear 15 as shown in FIG. Rotate. As the camshaft 13 rotates, a cam (vibration generating rotating body) 12 having the camshaft 13 as a rotation axis rotates.

  The cam 12 is a rotating body that rotates while being in contact with the diaphragm 8, and the diaphragm 8 vibrates as the cam 12 rotates.

  In addition, a sensor 18 that detects the paper stack 50 is provided at a position that can contact the bottom surface of the paper stack 50. The position of the sensor 18 is not particularly limited, and a hole may be formed in the mounting table 7 or the diaphragm 8 and the presence or absence of the paper stack 50 may be detected through the hole.

  A control unit (not shown) for controlling the paper feeding device 30 stops the operation of the drive motor 10 when the sensor 18 no longer detects the paper stack 50. What is necessary is just to implement | achieve the said control part using a microcomputer, for example.

(Mounting method of the paper feeder 30 to the shredder 40)
As shown in FIG. 2, the paper feeding device 30 includes a mounting portion for mounting the paper feeding device 30 on the shredder 40. Specifically, the mounting portion is a fixed column 21, a fixed bracket 22, and a handle 23.

  The fixing brackets 22 are provided at both ends of the fixing column 21, and the paper feeding device 30 can be fixed to the shredder 40 by sandwiching the side surfaces of the shredder 40 with two (or four) fixing brackets 22. it can.

  The handle 23 is for adjusting the strength with which the fixing bracket 22 sandwiches the side surface of the shredder 40, and firmly fixes the paper feeding device 30 to the shredder 40 by rotating the handle 23 in a predetermined direction. be able to.

  Note that the configuration for fixing the paper feeding device 30 to the shredder 40 is not limited to the above-described configuration, and may be appropriately changed according to the shape of the shredder to be mounted.

(Mechanism for rotating cam 12)
FIG. 5 is a perspective view showing a mechanism for rotating the cam 12. As shown in the figure, the drive motor 10 rotates the first shaft 14 having the feeding shaft 11 as a rotation axis at the same time as rotating the feeding shaft 11. The rotation of the first gear 14 is transmitted to the second gear 15, and the rotation of the second gear 15 is further transmitted to the cam gear 16.

  When the cam gear 16 rotates, the cam shaft 13 connected to the cam gear 16 rotates. In other words, the cam gear 16 has the camshaft 13 as a rotation axis. The cam shaft 13 is provided with a cam 12 having the cam shaft 13 as a rotation axis.

  Therefore, the rotational force generated by the drive motor 10 finally rotates the cam 12. In other words, the rotating shaft of the cam 12 is linked to the rotating shaft of the feeding roller 9 via at least one gear. With this configuration, the rotation of the feeding roller 9 having the feeding shaft 11 as the rotation axis and the rotation of the cam 12 having the cam shaft 13 as the rotation axis can be linked. As a result, the diaphragm 8 can be vibrated while the paper is supplied by the feeding roller 9.

  The radius of the cam gear 16 is smaller than the radius of the second gear 15, and the radius of the second gear 15 is smaller than the radius of the first gear 14. Therefore, the rotational speed of the gear is increased by passing through the first gear 14, the second gear 15 and the cam gear 16. With this configuration, the rotational speed of the cam gear 16 can be, for example, 25 times the rotational speed of the drive motor 10.

(Mechanism for vibrating the diaphragm 8)
As shown in FIGS. 2 and 5, the diaphragm 8 has two connection portions 8a, and is connected to the right structure support portion 3 and the left structure support portion 4 so as to be rotatable by the connection portions 8a. Yes. That is, the diaphragm 8 is rotatably connected to the main body of the sheet feeding device 30 via the connection portion 8a.

  Further, the cam 12 is arranged so as to abut on the surface of the vibration plate 8 opposite to the surface on which the paper laminate 50 is placed. The cam 12 rotates with the camshaft 13 as a rotation axis. The cam 12 and the camshaft 13 function as a vibrating portion that vibrates the diaphragm 8.

  The feeding shaft 11 and the camshaft 13 are disposed substantially in parallel, and as described above, the camshaft 13 rotates as the feeding shaft 11 rotates.

  In the example shown in FIG. 5, the connecting portion 8a is located between the feeding shaft 11 and the camshaft 13, but the camshaft 13 is located between the feeding shaft 11 and the connecting portion 8a. Also good. However, in the case of the configuration shown in FIG. 5, the paper is more likely to move in the direction of the feeding roller 9 (feeding unit) due to the vibration of the diaphragm 8, so that the connecting unit 8 a is connected to the feeding shaft 11 and the camshaft 13. It is preferable that it is located between.

  That is, it is preferable that the cam 12 vibrate the end of the diaphragm 8 on the side opposite to the end close to the feeding roller 9 (supply unit).

  FIG. 6 is a diagram for explaining the principle that the cam vibrates the diaphragm 8. As shown in the figure, the shape of the cross section of the cam 12 by a plane perpendicular to the extending direction of the camshaft 13 has a stepped portion 12a at the outer edge thereof. In other words, the cam 12 is formed by forming a step in a part of an eccentric elliptical cam.

  As the cam 12 rotates, the distance between the camshaft 13 and the diaphragm 8 changes abruptly at the step portion 12a. Therefore, the diaphragm 8 can be vibrated by rotating the cam 12.

  As shown in FIG. 5, the camshaft 13 is provided with a plurality of cams 12. The mounting angles of these cams 12 may be uniform, but are preferably different from each other. That is, when the plurality of cams 12 are viewed along the extending direction of the camshaft 13 from the end of the camshaft 13 that is the rotation axis of the cam 12, the positions of the stepped portions 12a of the cams 12 are different from each other. It is preferable.

  For example, when one cam 12 is in the state of FIG. 6A (when the step 12a is in contact with the diaphragm 8), another cam 12 is in the state of FIG. Another cam 12 is in the state of FIG.

  As described above, since the mounting angles of the cams 12 are different from each other, the diaphragm 8 can be vibrated in small increments while the camshaft 13 rotates once.

(Effect of safety cover 5)
As shown in FIG. 2, the safety cover 5 is disposed so as to bridge between the side surfaces 6 a of the front table 6. The user can raise the safety cover 5 along the groove 6 b of the front table 6 when the paper stack 50 is placed on the mounting table 7 and the diaphragm 8. When the paper 51 is supplied to the shredder 40 by the feeding roller 9 and the thickness of the paper stack 50 is reduced, the safety cover 5 is also lowered with the reduction.

  That is, the safety cover 5 is in contact with the paper laminate 50 on the side opposite to the feeding roller 9 with the paper laminate 50 interposed therebetween, and as the thickness of the paper laminate 50 decreases, the safety cover 5 is fed. It moves in a direction approaching the ding roller 9.

  When the paper placed on the placing table 7 and the diaphragm 8 runs out, the feeding roller 9 is exposed, but the feeding roller 9 is covered by the safety cover 5, so that the user inadvertently feeds the feeding roller 9. The risk of touching 9 can be reduced.

  Further, since the safety cover 5 presses the paper stack 50 from above by its own weight, the paper can be pressed against the feeding roller 9 even when the paper stack 50 becomes thin. Can be reliably performed to the end.

  Moreover, since the safety cover 5 can be freely moved up and down, it is possible to easily add paper while cutting the paper.

(Effect of paper feeding device 30)
As described above, the paper feeding device 30 is a paper feeding device that can be attached to the shredder 40, and includes the mounting table 7 and the vibration plate 8 that can support the same paper stack 50, and the vibration plate 8. In a state where the vibrating portion (cam 12, camshaft 13) vibrates and the vibrating portion vibrates the vibration plate 8, a supply portion (feeding roller 9, A feeding shaft 11).

  Therefore, by vibrating the vibration plate 8, the adhesion between the paper constituting the paper laminate 50 is reduced, and the weight of the paper laminate 50 is instantaneously reduced. The feeding roller 9 can easily supply the paper to the shredder 40. Therefore, the problem that the paper is not efficiently supplied to the shredder 40 due to the weight of the paper laminate 50 can be solved.

  As a result, even if a large amount of paper is set in the paper feeding device 30 at once, the paper can be efficiently supplied to the shredder 40. The paper feeding device 30 can feed paper without problems even if 500 or more sheets are stacked at a time.

  Further, since only the vibration plate 8 is vibrated among the mounting table 7 and the vibration plate 8 that support the paper stack 50, energy required for vibrating the paper stack 50 can be saved.

  Furthermore, the diaphragm 8 is located closer to the feeding roller 9 than the mounting table 7 that does not vibrate. Therefore, the paper layer 50 can be vibrated at a position close to the feeding roller 9, and the paper can be supplied more smoothly by the feeding roller 9.

  As described above, the paper feeding device 30 can efficiently supply paper to the shredder with less energy than the shredder described in Patent Document 1 described above. Further, as compared with the shredder described in Patent Document 1, the mechanism for vibrating the table on which the paper is placed can be simplified, and the running cost of the paper feeding device can be reduced.

(Example of change)
The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in the embodiments. Is also included in the technical scope of the present invention.

  For example, the paper feeding device 30 may be formed integrally with the shredder 40. In this case, the power source of the paper feeding device 30 and the power source of the shredder 40 may be linked.

  Alternatively, the rotation of the feeding roller 9 and the rotation of the cam 12 may be controlled separately. For example, a switch for switching on / off the rotation of the cam 12 may be provided.

  In the above-described configuration, the mounting table 7 and the diaphragm 8 are each formed by a single plate, but the mounting table 7 and / or the diaphragm 8 may be formed by a plurality of plates. When the diaphragm 8 is formed of a plurality of plates, a cam 12 corresponding to each diaphragm may be provided.

  That is, the cam 12 may vibrate the diaphragm 8 that is a part of the plurality of placement portions.

  Since a large amount of paper can be automatically and efficiently supplied to the shredder with less energy, it can be used as a paper feeding device that supplies paper to the shredder and a shredder including the paper feeding device.

It is a side view of the paper feeder concerning one embodiment of the present invention. It is a perspective view at the time of seeing the said paper feeder from the front diagonal direction. It is a perspective view at the time of seeing the said paper feeder from the back diagonal direction. It is a perspective view which shows the internal structure of the said paper feeder. It is a perspective view which shows the relationship between the feeding roller with which the said paper feeding apparatus is provided, and a cam. It is a figure for demonstrating the principle which vibrates a diaphragm by the cam with which the said sheet feeding apparatus rotates.

Explanation of symbols

5 Safety cover (protection part)
7 Mounting table (mounting unit)
8 Diaphragm (vibration mounting part)
9 Feeding roller (supply section, supply rotating body)
11 Feeding shaft (supply unit, rotating shaft)
12 Cam (vibrating part, vibration generating rotating body)
13 Camshaft (vibrating part, rotating shaft)
12a Step part (step)
30 Paper feeder 40 Shredder (cutting device)
50 Paper laminate 51 Paper

Claims (6)

A paper feeding device that feeds paper to a cutting device capable of cutting paper,
A plurality of placement units capable of supporting the same paper laminate;
A vibrating unit that vibrates a vibration mounting unit that is a part of the plurality of mounting units;
A sheet feeding apparatus comprising: a supply unit configured to supply a part of the stacked body to a cutting device in a state where the vibration unit vibrates the vibration mounting unit.   The sheet feeding device according to claim 1, wherein the vibration placement unit is located closer to the supply unit than other placement units that do not vibrate. The vibration part has a vibration generating rotating body that rotates while contacting the vibration mounting part,
The sheet feeding device according to claim 1 or 2, wherein a shape of a cross section of a plane perpendicular to the rotation axis of the vibration generating rotator has a step at an outer edge portion thereof. The supply unit has a supply rotating body that supplies paper that contacts itself to the cutting device by rotating itself.
The sheet feeding device according to claim 3, wherein the rotation shaft of the vibration generating rotator is linked to the rotation shaft of the supply rotator via at least one gear.   It has a surface that can cover at least a part of the supply unit, and is in contact with the laminate on the opposite side of the supply unit across the laminate, and the supply as the thickness of the laminate decreases. The sheet feeding device according to claim 1, further comprising a protection unit capable of changing the position in a direction approaching the unit.   A cutting apparatus comprising the paper feeding device according to claim 1, wherein the paper fed from the paper feeding device is cut.

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